MSCI (MSCI) 10-Q23 Jul 242024 Q2 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2024	Jul. 16, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-33812
Entity Registrant Name	MSCI INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-4038723
Entity Address, Address Line One	7 World Trade Center
Entity Address, Address Line Two	250 Greenwich Street, 49th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10007
City Area Code	212
Local Phone Number	804-3900
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	MSCI
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		78,649,981
Entity Central Index Key	0001408198
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Amendment Flag	false

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents (includes restricted cash of $3,883 and $3,878 at June 30, 2024 and December 31, 2023, respectively)	$ 451,401	$ 461,693
Accounts receivable (net of allowances of $4,476 and $3,968 at June 30, 2024 and December 31, 2023, respectively)	709,487	839,555
Prepaid income taxes	98,611	59,002
Prepaid and other assets	55,553	57,903
Total current assets	1,315,052	1,418,153
Property, equipment and leasehold improvements, net	63,974	55,920
Right of use assets	129,542	115,243
Goodwill	2,909,415	2,887,692
Intangible assets, net	949,166	956,234
Deferred tax assets	40,213	41,074
Other non-current assets	49,471	43,903
Total assets	5,456,833	5,518,219
Current liabilities:
Accounts payable	12,922	9,812
Income taxes payable	24,919	24,709
Accrued compensation and related benefits	129,978	219,456
Current portion of long-term debt	0	10,902
Other accrued liabilities	190,626	168,282
Deferred revenue	1,017,997	1,083,864
Total current liabilities	1,376,442	1,517,025
Long-term debt	4,508,730	4,496,826
Long-term operating lease liabilities	130,559	120,134
Deferred tax liabilities	69,684	27,028
Other non-current liabilities	105,901	96,970
Total liabilities	6,191,316	6,257,983
Commitments and Contingencies (see Note 8)
Shareholders’ equity (deficit):
Preferred stock (par value $0.01; 100,000,000 shares authorized; no shares issued)	0	0
Common stock (par value $0.01; 750,000,000 common shares authorized; 134,075,817 and 133,817,332 common shares issued and 78,749,685 and 79,091,212 common shares outstanding at June 30, 2024 and December 31, 2023, respectively)	1,341	1,338
Treasury shares, at cost (55,326,132 and 54,726,120 common shares held at June 30, 2024 and December 31, 2023, respectively)	(6,759,019)	(6,447,101)
Additional paid in capital	1,642,385	1,587,670
Retained earnings	4,445,645	4,179,681
Accumulated other comprehensive loss	(64,835)	(61,352)
Total shareholders’ equity (deficit)	(734,483)	(739,764)
Liabilities and Equity, Total	$ 5,456,833	$ 5,518,219

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Restricted cash, current	$ 3,883	$ 3,878
Accounts receivable, allowance for credit loss, current	$ 4,476	$ 3,968
Preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	134,075,817	133,817,332
Common stock, shares outstanding (in shares)	78,749,685	79,091,212
Shares repurchased (in shares)	55,326,132	54,726,120
Liabilities and Equity	$ 5,456,833	$ 5,518,219

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Operating revenues	$ 707,949	$ 621,157	$ 1,387,914	$ 1,213,375
Costs and Expenses [Abstract]
Cost of revenues (exclusive of depreciation and amortization)	128,109	110,066	256,623	218,713
Selling and marketing	71,454	67,988	143,622	134,463
Research and development	41,073	30,140	81,598	61,463
General and administrative	39,706	35,657	96,397	76,701
Amortization of intangible assets	40,773	26,154	79,377	50,821
Depreciation and amortization of property, equipment and leasehold improvements	4,226	5,199	8,307	10,659
Total operating expenses	325,341	275,204	665,924	552,820
Operating income	382,608	345,953	721,990	660,555
Interest income	(6,110)	(10,403)	(12,158)	(20,765)
Interest expense	46,633	46,617	93,307	92,823
Other expense (income)	2,091	2,581	4,954	4,967
Other expense (income), net	42,614	38,795	86,103	77,025
Income before provision for income taxes	339,994	307,158	635,887	583,530
Provision for income taxes	73,236	60,333	113,175	97,977
Net income	$ 266,758	$ 246,825	$ 522,712	$ 485,553
Earnings per share:
Basic (in USD per share)	$ 3.37	$ 3.10	$ 6.60	$ 6.08
Diluted (in USD per share)	$ 3.37	$ 3.09	$ 6.59	$ 6.05
Weighted average shares outstanding:
Basic (in USD per share)	79,085	79,592	79,140	79,815
Diluted (in USD per share)	79,245	79,905	79,377	80,193

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 266,758	$ 246,825	$ 522,712	$ 485,553
Other comprehensive income (loss):
Foreign currency translation adjustments	(1,255)	2,516	(3,797)	6,878
Income tax effect	(117)	(323)	212	(1,431)
Foreign currency translation adjustments, net	(1,372)	2,193	(3,585)	5,447
Pension and other post-retirement adjustments	85	(1,581)	106	(2,094)
Income tax effect	9	179	(4)	213
Pension and other post-retirement adjustments, net	94	(1,402)	102	(1,881)
Other comprehensive income (loss), net of tax	(1,278)	791	(3,483)	3,566
Comprehensive income	$ 265,480	$ 247,616	$ 519,229	$ 489,119

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2022	$ (1,007,925)	$ 1,336	$ (5,938,116)	$ 1,515,874	$ 3,473,192	$ (60,211)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	238,728				238,728
Dividends declared	(111,986)				(111,986)
Dividends paid in shares	44			44
Other comprehensive income (loss), net of tax	2,775					2,775
Common stock issued	2	2
Shares withheld for tax withholding	(43,960)		(43,960)
Compensation payable in common stock	20,988			20,988
Common stock repurchased and held in treasury	0
Common stock issued to Directors and (held in)/released from treasury	(30)		(30)
Ending Balance at Mar. 31, 2023	(901,364)	1,338	(5,982,106)	1,536,906	3,599,934	(57,436)
Beginning Balance at Dec. 31, 2022	(1,007,925)	1,336	(5,938,116)	1,515,874	3,473,192	(60,211)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	485,553
Other comprehensive income (loss), net of tax	3,566
Ending Balance at Jun. 30, 2023	(1,193,668)	1,338	(6,428,102)	1,553,365	3,736,376	(56,645)
Beginning Balance at Mar. 31, 2023	(901,364)	1,338	(5,982,106)	1,536,906	3,599,934	(57,436)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	246,825				246,825
Dividends declared	(110,383)				(110,383)
Dividends paid in shares	33			33
Other comprehensive income (loss), net of tax	791					791
Common stock issued	0
Shares withheld for tax withholding	(611)		(611)
Compensation payable in common stock	16,426			16,426
Common stock repurchased and held in treasury	(444,655)		(444,655)
Common stock issued to Directors and (held in)/released from treasury	(730)		(730)
Ending Balance at Jun. 30, 2023	(1,193,668)	1,338	(6,428,102)	1,553,365	3,736,376	(56,645)
Beginning Balance at Dec. 31, 2023	(739,764)	1,338	(6,447,101)	1,587,670	4,179,681	(61,352)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	255,954				255,954
Dividends declared	(129,444)				(129,444)
Dividends paid in shares	74			74
Other comprehensive income (loss), net of tax	(2,205)					(2,205)
Common stock issued	3	3
Shares withheld for tax withholding	(69,991)		(69,991)
Compensation payable in common stock	34,894			34,894
Common stock repurchased and held in treasury	0
Common stock issued to Directors and (held in)/released from treasury	(38)		(38)
Ending Balance at Mar. 31, 2024	(650,517)	1,341	(6,517,130)	1,622,638	4,306,191	(63,557)
Beginning Balance at Dec. 31, 2023	(739,764)	1,338	(6,447,101)	1,587,670	4,179,681	(61,352)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	522,712
Other comprehensive income (loss), net of tax	(3,483)
Ending Balance at Jun. 30, 2024	(734,483)	1,341	(6,759,019)	1,642,385	4,445,645	(64,835)
Beginning Balance at Mar. 31, 2024	(650,517)	1,341	(6,517,130)	1,622,638	4,306,191	(63,557)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	266,758				266,758
Dividends declared	(127,304)				(127,304)
Dividends paid in shares	40			40
Other comprehensive income (loss), net of tax	(1,278)					(1,278)
Common stock issued	0
Shares withheld for tax withholding	(200)		(200)
Compensation payable in common stock	19,707			19,707
Common stock repurchased and held in treasury	(243,035)		(243,035)
Common stock issued to Directors and (held in)/released from treasury	1,346		1,346
Ending Balance at Jun. 30, 2024	$ (734,483)	$ 1,341	$ (6,759,019)	$ 1,642,385	$ 4,445,645	$ (64,835)

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) (Parenthetical) - $ / shares	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Stockholders' Equity [Abstract]
Dividend declared per common share (in USD per share)	$ 1.60	$ 1.60	$ 1.38	$ 1.38	$ 3.20	$ 2.76

CONDENSED CONSOLIDATED STATEM_7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net income	$ 522,712	$ 485,553
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	79,377	50,821
Stock-based compensation expense	53,732	37,231
Depreciation and amortization of property, equipment and leasehold improvements	8,307	10,659
Amortization of right of use assets	11,837	11,586
Amortization of debt origination fees	2,567	2,526
Loss on extinguishment of debt	1,510	0
Deferred taxes	42,555	(11,766)
Other adjustments	(3,085)	5,978
Changes in assets and liabilities:
Accounts receivable	125,264	50,985
Prepaid income taxes	(39,595)	(32,729)
Prepaid and other assets	1,676	5,836
Other non-current assets	(1,961)	(3,109)
Accounts payable	2,646	(7,850)
Income taxes payable	2,134	3,547
Accrued compensation and related benefits	(84,865)	(65,529)
Other accrued liabilities	3,162	2,869
Deferred revenue	(60,128)	23,443
Long-term operating lease liabilities	(12,387)	(10,396)
Other non-current liabilities	(6,019)	(3,515)
Other	(54)	(195)
Net cash provided by operating activities	649,385	555,945
Cash flows from investing activities
Capitalized software development costs	(38,673)	(32,663)
Capital expenditures	(12,889)	(15,378)
Cash paid for acquisitions, net of cash acquired	(27,467)	0
Other	(429)	(389)
Net cash used in investing activities	(79,458)	(48,430)
Cash flows from financing activities
Repurchase of common stock held in treasury	(311,709)	(485,417)
Payment of dividends	(258,223)	(222,260)
Repayment of borrowings	(339,063)	(4,375)
Proceeds from borrowings	336,875	0
Payment of debt issuance costs	(3,739)	0
Net cash used in financing activities	(575,859)	(712,052)
Effect of exchange rate changes	(4,360)	3,302
Net (decrease) increase in cash, cash equivalents and restricted cash	(10,292)	(201,235)
Cash, cash equivalents and restricted cash, beginning of period	461,693	993,564
Cash, cash equivalents and restricted cash, end of period	451,401	792,329
Supplemental disclosure of cash flow information:
Cash paid for interest	90,732	90,661
Cash paid for income taxes, net of refunds received	113,232	138,587
Supplemental disclosure of non-cash investing activities
Property, equipment and leasehold improvements in other accrued liabilities	6,809	5,567
Supplemental disclosure of non-cash financing activities
Cash dividends declared, but not yet paid	$ 761	$ 1,014

INTRODUCTION AND BASIS OF PRESE

INTRODUCTION AND BASIS OF PRESENTATION	6 Months Ended
INTRODUCTION AND BASIS OF PRESENTATION	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
INTRODUCTION AND BASIS OF PRESENTATION	INTRODUCTION AND BASIS OF PRESENTATION MSCI Inc., together with its wholly owned subsidiaries (the “Company” or “MSCI”) is a leading provider of critical decision support tools and solutions for the global investment community. Our mission-critical offerings help investors address the challenges of a transforming investment landscape and power better investment decisions. Leveraging our knowledge of the global investment process and our expertise in research, data and technology, we enable our clients to understand and analyze key drivers of risk and return and confidently and efficiently build more effective portfolios. Our products and services include indexes; portfolio construction and risk management tools; environmental, social and governance (“ESG”) and climate solutions; and private asset data and analysis. Basis of Presentation and Use of Estimates The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023. If not materially different, certain note disclosures included therein have been omitted from these interim condensed consolidated financial statements. In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim consolidated financial statements, have been included. The results of operations for interim periods are not necessarily indicative of results for the entire year. The Company’s unaudited condensed consolidated financial statements are prepared in accordance with GAAP. The Company makes certain estimates and judgments that can affect the reported amounts of assets and liabilities as of the date of the unaudited condensed consolidated financial statements, as well as the reported amounts of operating revenues and expenses during the periods presented. Significant estimates and judgments made by management include such examples as assessment of impairment of goodwill and intangible assets and income taxes. The Company believes that estimates used in the preparation of these unaudited condensed consolidated financial statements are reasonable; however, actual results could differ materially from these estimates. Inter-company balances and transactions are eliminated in consolidation. Concentrations For the six months ended June 30, 2024 and 2023, BlackRock, Inc. (“BlackRock”) accounted for 10.1% and 10.0% of the Company’s consolidated operating revenues, respectively. For the six months ended June 30, 2024 and 2023, BlackRock accounted for 17.8% and 16.9% of the Index segment’s operating revenues, respectively. No single customer represented 10.0% or more of operating revenues within the Analytics, ESG and Climate or All Other – Private Assets segments for the six months ended June 30, 2024 and 2023. Allowance for Credit Losses Changes in the allowance for credit losses from December 31, 2022 to June 30, 2024 were as follows: (in thousands) Amount Balance as of December 31, 2022 $ 2,652 Addition to credit loss expense 2,196 Write-offs, net of recoveries (880) Balance as of December 31, 2023 $ 3,968 Addition to credit loss expense 1,611 Write-offs, net of recoveries (1,103) Balance as of June 30, 2024 $ 4,476

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	6 Months Ended
RECENT ACCOUNTING PRONOUNCEMENTS	Jun. 30, 2024
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	RECENT ACCOUNTING PRONOUNCEMENTS In November 2023, the FASB issued Accounting Standards Update No. 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” or ASU 2023-07. The amendments in ASU 2023-07 aim to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, and subsequent interim periods, with early adoption permitted. The Company is currently evaluating the impact of this update on disclosures within its consolidated financial statements. In December 2023, the FASB issued Accounting Standards Update No. 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” or ASU 2023-09. The amendments in ASU 2023-09 aim to enhance the transparency and decision usefulness of income tax disclosures. ASU 2023-09 is effective for the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, with early adoption permitted. The Company is currently evaluating the impact of this update on disclosures within its consolidated financial statements.

REVENUE RECOGNITION

REVENUE RECOGNITION	6 Months Ended
REVENUE RECOGNITION	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION MSCI’s operating revenues are reported by product type, which generally reflects the timing of recognition. The Company’s operating revenue types are recurring subscriptions, asset-based fees and non-recurring revenues. The Company also disaggregates operating revenues by segment. The tables that follow present the disaggregated operating revenues for the periods indicated: For the Three Months Ended June 30, 2024 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 217,032 $ 162,128 $ 78,000 $ 64,309 $ 521,469 Asset-based fees 163,281 — — — 163,281 Non-recurring 16,879 3,867 1,855 598 23,199 Total $ 397,192 $ 165,995 $ 79,855 $ 64,907 $ 707,949 For the Six Months Ended June 30, 2024 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 429,984 $ 322,679 $ 154,418 $ 127,443 $ 1,034,524 Asset-based fees 313,540 — — — 313,540 Non-recurring 27,540 7,282 3,321 1,707 39,850 Total $ 771,064 $ 329,961 $ 157,739 $ 129,150 $ 1,387,914 For the Three Months Ended June 30, 2023 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 200,714 $ 147,504 $ 70,047 $ 37,427 $ 455,692 Asset-based fees 138,162 — — — 138,162 Non-recurring 23,440 2,377 1,172 314 27,303 Total $ 362,316 $ 149,881 $ 71,219 $ 37,741 $ 621,157 For the Six Months Ended June 30, 2023 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 397,392 $ 292,007 $ 135,779 $ 75,761 $ 900,939 Asset-based fees 271,288 — — — 271,288 Non-recurring 33,018 4,944 2,498 688 41,148 Total $ 701,698 $ 296,951 $ 138,277 $ 76,449 $ 1,213,375 The tables that follow present the change in accounts receivable, net of allowances, and current deferred revenue between the dates indicated: (in thousands) Accounts receivable, net of allowances Deferred revenue Opening (December 31, 2023) $ 839,555 $ 1,083,864 Closing (June 30, 2024) 709,487 1,017,997 Increase/(decrease) $ (130,068) $ (65,867) (in thousands) Accounts receivable, net of allowances Deferred revenue Opening (December 31, 2022) $ 663,236 $ 882,886 Closing (June 30, 2023) 612,885 909,623 Increase/(decrease) $ (50,351) $ 26,737 The amounts of revenues recognized in the periods that were included in the opening current deferred revenue, which reflects contract liability amounts, were $285.3 million and $705.6 million for the three and six months ended June 30, 2024, respectively, and $269.6 million and $626.2 million for the three and six months ended June 30, 2023, respectively. The difference between the opening and closing balances of the Company’s deferred revenue was primarily driven by an increase in the amortization of deferred revenue to operating revenues, partially offset by an increase in billings. As of June 30, 2024 and December 31, 2023, the Company carried a long-term deferred revenue balance of $27.4 million and $28.8 million, respectively, in “Other non-current liabilities” on the Unaudited Condensed Consolidated Statement of Financial Condition. For contracts that have a duration of one year or less, the Company has not disclosed either the remaining performance obligation as of the end of the reporting period or when the Company expects to recognize the revenue. The remaining performance obligations for contracts that have a duration of greater than one year and the periods in which they are expected to be recognized are as follows: As of June 30, (in thousands) 2024 First 12-month period $ 879,064 Second 12-month period 551,575 Third 12-month period 272,953 Periods thereafter 175,858 Total $ 1,879,450

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE	6 Months Ended
EARNINGS PER COMMON SHARE	Jun. 30, 2024
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted EPS reflects the assumed conversion of all dilutive securities, including, when applicable, restricted stock units (“RSUs”), performance stock units (“PSUs”) and performance stock options (“PSOs”). The following table presents the computation of basic and diluted EPS: Three Months Ended Six Months Ended (in thousands, except per share data) 2024 2023 2024 2023 Net income $ 266,758 $ 246,825 $ 522,712 $ 485,553 Basic weighted average common shares outstanding 79,085 79,592 79,140 79,815 Effect of dilutive securities: PSUs, RSUs and PSOs 160 313 237 378 Diluted weighted average common shares outstanding 79,245 79,905 79,377 80,193 Earnings per common share: Basic $ 3.37 $ 3.10 $ 6.60 $ 6.08 Diluted $ 3.37 $ 3.09 $ 6.59 $ 6.05

ACQUISITIONS

ACQUISITIONS	6 Months Ended
ACQUISITIONS	Jun. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
ACQUISITIONS	ACQUISITIONS On October 2, 2023, the Company acquired the remaining 66.4% interest in The Burgiss Group, LLC (“Burgiss”) for $696.8 million in cash (the “step acquisition”). The Company’s existing 33.6% interest in Burgiss had a fair value at acquisition date of $353.2 million which resulted in a non-taxable gain of $143.0 million which the Company recognized during the three months ended December 31, 2023. The acquisition of Burgiss will provide the Company with comprehensive data and deep expertise in private assets, enabling investors to evaluate fundamental information, measure and compare performance, understand exposures, manage risk, and conduct robust analytics. The step acquisition has been accounted for as a business combination using the acquisition method of accounting and its results are reported within the Private Capital Solutions operating segment within the All Other – Private Assets reportable segment. With the step acquisition, the Company renamed the Burgiss operating segment to Private Capital Solutions. Prior to the step acquisition, Burgiss was accounted for as an equity-method investment. Therefore, MSCI did not recognize the proportionate share of Burgiss’ operating revenues, rather, the Company’s proportionate share of the income or loss of Burgiss was reported as a component of other (expense) income, net. A portion of Burgiss’s client agreements do not have automatic renewal clauses at the end of the subscription period. Due to the historically high retention rate, the expectation that a substantial portion of the client agreements will be renewed and the nature of the subscription service, the associated revenue is recorded as recurring subscription revenue. The table below represents the preliminary purchase price allocation to total assets acquired and liabilities assumed and the associated estimated useful lives as of the acquisition date. (in thousands) Estimated Fair Value Cash and cash equivalents $ 5,397 Accounts receivable 25,839 Prepaid Income Taxes 30 Other current assets 4,178 Property, equipment and leasehold improvements, net 670 Right of use assets 3,443 Other non-current assets 471 Deferred revenue (21,479) Other current liabilities (13,412) Long-term operating lease liabilities (2,525) Intangible assets: Proprietary data 11 years 229,900 Customer relationships 21 years 179,900 Acquired technology and software 3 years 19,000 Trademarks 1 year 900 Goodwill 617,622 Net assets acquired $ 1,049,934 The Company, with the assistance of third-party valuation experts, calculated the fair values of intangible assets using the relief from royalty method for proprietary data, acquired technology and software and trademarks and the multi-period excess earnings method for customer relationships. The significant assumptions used to estimate the fair value of the acquired intangible assets included forecasted cash flows, which were determined based on certain assumptions that included, among others, projected future revenues, and expected market royalty rates, technology obsolescence rates and discount rates. The weighted average amortization period of the acquired intangible assets was 14.8 years. The recorded goodwill is primarily attributable to the expected synergies from the utilization of the acquired data as well as expanded market opportunities. Goodwill attributable to the acquisition is deductible for federal income tax purposes to the extent of consideration paid. Revenue of Burgiss recognized within the consolidated financial statements was $26.8 million and $51.0 million for the three and six months ended June 30, 2024, respectively. On November 1, 2023, MSCI completed the acquisition of Trove Research Ltd (“Trove”), a carbon markets intelligence provider. Trove is a part of the ESG and Climate operating segment. On January 2, 2024, MSCI completed the acquisition of Fabric RQ, Inc. (“Fabric”), a wealth technology platform specializing in portfolio design, customization and analytics for wealth managers and advisors. Fabric is a part of the Analytics operating segment. The contingent consideration related to Fabric is payable based upon the future product sales of the acquired business. On April 16, 2024, MSCI completed the acquisition of Foxberry Ltd. (“Foxberry”), a front-office index technology platform. Foxberry is a part of the Index operating segment. The contingent consideration related to Foxberry is payable based upon the achievement of integration metrics related to the operation of the platform. The Company recognizes the fair value of contingent consideration at the date of acquisition. The liability associated with any contingent consideration is remeasured to fair value at each reporting date subsequent to the acquisition and changes in the fair value are recorded in the Unaudited Condensed Consolidated Statements of Income. The following table presents the preliminary acquired balances related to the acquisitions of Trove, Fabric and Foxberry: (in thousands, except weighted average amortization period of intangible asset) Trove Fabric Foxberry Acquisition Date November 1, 2023 January 2, 2024 April 16, 2024 Cash payments $ 37,473 $ 7,959 $ 20,945 Deferred payments — — 2,529 Contingent consideration liability — 8,146 19,094 Aggregate purchase price $ 37,473 $ 16,105 $ 42,568 Net tangible assets acquired (liabilities assumed) $ (4,787) $ (226) $ 1,748 Intangible assets 7,705 11,300 22,500 Goodwill 34,555 5,031 18,320 Aggregate purchase price $ 37,473 $ 16,105 $ 42,568 Weighted average amortization period of intangible assets (years) 13.0 9.1 7.9 The fair values of the contingent consideration were determined based on management estimates and assumptions which primarily include forecasted product sales, probability of achievement of certain integration targets and discount rates. The Company classifies these liabilities as Level 3 within the fair value hierarchy, as the measurement is based on inputs that are not observable in the market. As of June 30, 2024, the fair value of the contingent consideration was $27.7 million, of which $9.8 million is included in “Other accrued liabilities” and $17.9 million is included in “Other non-current liabilities” on the Unaudited Condensed Consolidated Statement of Financial Condition. Changes in the Company’s Level 3 financial liabilities for the three and six months ended June 30, 2024 and 2023, respectively, were as follows: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Beginning balance $ 8,269 $ — $ — $ — Additions of contingent consideration 1 19,094 — 27,240 — Change in fair value 383 — 506 — Payments — — — $ — Ending Balance $ 27,746 $ — $ 27,746 $ — ___________________________ (1) Reflects balance of contingent consideration at acquisition date fair value. The recorded goodwill for Trove is primarily attributable to expected synergies from the utilization of the acquired data as well as expanded market opportunities. The recorded goodwill amounts for Fabric and Foxberry are primarily attributable to expected synergies from the utilization of the acquired technology platforms. Goodwill attributable to the acquisitions of Fabric, Trove and Foxberry are not deductible for federal income tax purposes. Revenue of Trove, Fabric and Foxberry recognized within the Unaudited Condensed Consolidated Statement of Income was $1.1 million, $168 thousand and $178 thousand for the three months ended June 30, 2024, respectively. Revenue of Trove, Fabric and Foxberry recognized within the Unaudited Condensed Consolidated Statement of Income was $2.4 million, $337 thousand and $178 thousand for the six months ended June 30, 2024, respectively.

PROPERTY, EQUIPMENT AND LEASEHO

PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET	6 Months Ended
PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET	PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET Property, equipment and leasehold improvements, net consisted of the following as of the dates indicated: As of June 30, December 31, (in thousands) 2024 2023 Computer & related equipment $ 172,371 $ 192,008 Furniture & fixtures 15,764 16,169 Leasehold improvements 56,283 58,582 Work-in-process 3,506 897 Subtotal 247,924 267,656 Accumulated depreciation and amortization (183,950) (211,736) Property, equipment and leasehold improvements, net $ 63,974 $ 55,920 Depreciation and amortization expense of property, equipment and leasehold improvements was $4.2 million and $5.2 million for the three months ended June 30, 2024 and 2023, respectively. Depreciation and amortization expense of property, equipment and leasehold improvements was $8.3 million and $10.7 million for the six months ended June 30, 2024 and 2023, respectively.

GOODWILL AND INTANGIBLE ASSETS,

GOODWILL AND INTANGIBLE ASSETS, NET	6 Months Ended
GOODWILL AND INTANGIBLE ASSETS, NET	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS, NET	GOODWILL AND INTANGIBLE ASSETS, NET Goodwill The following table presents goodwill by reportable segment: (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Goodwill at December 31, 2023 $ 1,203,435 $ 290,976 $ 84,724 $ 1,308,557 $ 2,887,692 Acquisitions (1) 18,320 5,031 (357) (793) 22,200 Foreign exchange translation adjustment 11 — (323) (166) (477) Goodwill at June 30, 2024 $ 1,221,766 $ 296,007 $ 84,044 $ 1,307,598 $ 2,909,415 ___________________________ (1) Reflects the impact of the acquisitions of Foxberry, Fabric, Trove and Burgiss. Intangible Assets, Net The following table presents the amount of amortization expense related to intangible assets by category for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Amortization expense of acquired intangible assets $ 25,893 $ 15,851 $ 51,160 $ 31,682 Amortization expense of internally developed capitalized software 14,880 10,303 28,217 19,139 Total amortization of intangible assets expense $ 40,773 $ 26,154 $ 79,377 $ 50,821 The gross carrying and accumulated amortization amounts related to the Company’s intangible assets were as follows: June 30, 2024 December 31, 2023 (in thousands) Gross intangible assets: Accumulated amortization: Net intangible assets: Gross intangible assets: Accumulated amortization: Net intangible assets: Customer relationships $ 715,165 $ (359,623) $ 355,542 $ 709,299 $ (340,248) $ 369,051 Proprietary data 452,232 (84,858) 367,374 452,543 (64,694) 387,849 Acquired technology and software 256,967 (191,957) 65,010 228,785 (185,583) 43,202 Trademarks 209,090 (176,730) 32,360 209,090 (171,715) 37,375 Internally developed capitalized software 274,914 (146,034) 128,880 237,060 (118,303) 118,757 Total $ 1,908,368 $ (959,202) $ 949,166 $ 1,836,777 $ (880,543) $ 956,234 The following table presents the estimated amortization expense for the remainder of the year ending December 31, 2024 and succeeding years: Years Ending December 31, Amortization Remainder of 2024 $ 83,804 2025 144,112 2026 108,685 2027 77,707 2028 69,711 Thereafter 465,147 Total $ 949,166

DEBT

DEBT	6 Months Ended
DEBT	Jun. 30, 2024
Debt Disclosure [Abstract]
DEBT	DEBT As of June 30, 2024, the Company had outstanding an aggregate of $4,200.0 million in senior unsecured notes (collectively, the “Senior Notes”) and $336.9 million under the Revolving Credit Facility (as defined below) as presented in the table below: Principal Carrying Carrying Fair Fair (in thousands) Maturity Date June 30, 2024 June 30, 2024 December 31, 2023 June 30, 2024 December 31, 2023 Debt 4.000% senior unsecured notes due 2029 November 15, 2029 $ 1,000,000 $ 994,182 $ 993,637 $ 933,350 $ 941,090 3.625% senior unsecured notes due 2030 September 1, 2030 900,000 895,918 895,587 809,514 815,526 3.875% senior unsecured notes due 2031 February 15, 2031 1,000,000 992,708 992,161 899,970 914,360 3.625% senior unsecured notes due 2031 November 1, 2031 600,000 595,181 594,852 526,722 529,458 3.250% senior unsecured notes due 2033 August 15, 2033 700,000 693,866 693,532 578,998 586,509 Variable rate Tranche A Term Loans due 2027 February 16, 2027 — — 337,959 — 337,367 Variable rate revolving loan commitments (1) January 26, 2029 336,875 336,875 — 335,191 — Total debt $ 4,536,875 $ 4,508,730 $ 4,507,728 $ 4,083,745 $ 4,124,310 ___________________________ (1) As of June 30, 2024, there were $4.5 million in unamortized deferred financing fees associated with the variable rate revolving loan commitments of which $1.0 million is included in “Prepaid and other assets,” and $3.5 million is included in “Other non-current assets” on the Unaudited Condensed Consolidated Statement of Financial Condition. Maturities of the Company’s principal debt payments as of June 30, 2024 are as follows: Maturity of Principal Debt Payments Amounts Remainder of 2024 $ — 2025 — 2026 — 2027 — 2028 — Thereafter 4,536,875 Total debt $ 4,536,875 Interest payments attributable to the Company’s outstanding indebtedness are due as presented in the following table: Interest payment frequency First interest Senior Notes and Revolving Loan Commitments 4.000% senior unsecured notes due 2029 Semi-Annual May 15 3.625% senior unsecured notes due 2030 Semi-Annual March 1 3.875% senior unsecured notes due 2031 Semi-Annual June 1 3.625% senior unsecured notes due 2031 Semi-Annual May 1 3.250% senior unsecured notes due 2033 Semi-Annual February 15 Variable rate revolving loan commitments (1) Variable February 26 ___________________________ (1) The first payment occurred on February 26, 2024. The fair market value of the Company’s debt obligations represent Level 2 valuations. The Company utilized the market approach and obtained security pricing from a vendor who used broker quotes and third-party pricing services to determine fair values. Credit Agreement. Since November 20, 2014, the Company has maintained a revolving credit agreement with a syndicate of banks. On January 26, 2024, the Company entered into a Second Amended and Restated Credit Agreement (the “Credit Agreement”), amending and restating in its entirety the Company’s prior Amended and Restated Credit Agreement (the “Prior Credit Agreement”). The Credit Agreement makes available to the Company an aggregate of $1,250.0 million of revolving loan commitments under a revolving credit facility (the “Revolving Credit Facility”), which may be drawn until January 26, 2029. At the closing of the Credit Agreement, the Company drew $336.9 million on the Revolving Credit Facility and primarily used the proceeds to prepay all senior unsecured Tranche A Term Loans (the “Tranche A Term Loans”) under the term loan A facility (the “TLA Facility”) under the Prior Credit Agreement. The obligations under the Credit Agreement are general unsecured obligations of the Company. The prepayment of the Tranche A Term Loans and the entry into the Credit Agreement resulted in an approximately $1.5 million loss on extinguishment related to unamortized debt issuance costs during the three months ended March 31, 2024. The loss on extinguishment was recorded in “Other expense (income)” on the Unaudited Condensed Consolidated Statement of Income. Interest on the revolving loans under the Credit Agreement accrues, at a variable rate, based on the secured overnight funding rate (“SOFR”) or the alternate base rate (“Base Rate”), plus, in each case, an applicable margin to be determined based on the credit ratings of the Company’s senior, unsecured long-term debt and will be due on each Interest Payment Date (as defined in the Credit Agreement). So long as the credit rating for the Company’s senior, unsecured long-term debt is set at BBB-/BBB- by each of S&P and Fitch, respectively, the applicable margin is 0.50% for Base Rate loans, and 1.50% for SOFR loans. At June 30, 2024, the interest rate on the revolving loans was 6.94%. Interest on the Tranche A Term Loans under the TLA Facility accrued, at a variable rate, based on the secured overnight funding rate (“SOFR”) or the alternate base rate (“Base Rate”), plus, in each case, an applicable margin and was due on each Interest Payment Date (as defined in the Prior Credit Agreement). The applicable margin was calculated by reference to the Company’s Consolidated Leverage Ratio (as defined in the Credit Agreement) and ranged between 1.50% to 2.00% for SOFR loans, and 0.50% to 1.00% for Base Rate loans. In connection with the closings of the Senior Notes offerings, entry into the Prior Credit Agreement and the subsequent amendments thereto and entry into the Credit Agreement, the Company paid certain financing fees which, together with the existing fees related to prior credit facilities, are being amortized over their related lives. At June 30, 2024, $32.6 million of the deferred financing fees and premium remain unamortized, $1.0 million of which is included in “Prepaid and other assets,” $3.5 million of which is included in “Other non-current assets” and $28.1 million of which is included in “Long-term debt” on the Unaudited Condensed Consolidated Statement of Financial Condition.

LEASES

LEASES	6 Months Ended
LEASES	Jun. 30, 2024
Leases [Abstract]
LEASES	LEASES The components of lease expense (income) of the Company’s operating leases are as follows: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating lease expenses $ 7,655 $ 7,178 $ 14,794 $ 14,292 Variable lease costs 550 930 1,619 1,821 Short-term lease costs 224 188 439 439 Sublease income (918) (1,276) (1,746) (2,551) Total lease costs $ 7,511 $ 7,020 $ 15,106 $ 14,001 Maturities of the Company’s operating lease liabilities as of June 30, 2024 are as follows: Maturity of Lease Liabilities Operating (in thousands) Leases Remainder of 2024 $ 14,657 2025 32,290 2026 30,121 2027 23,930 2028 23,176 Thereafter 52,778 Total lease payments $ 176,952 Less: Interest (21,202) Present value of lease liabilities $ 155,750 Other accrued liabilities $ 25,191 Long-term operating lease liabilities $ 130,559 Weighted-average remaining lease term and discount rate for the Company’s operating leases are as follows: As of June 30, December 31, Lease Term and Discount Rate 2024 2023 Weighted-average remaining lease term (years) 6.49 7.04 Weighted-average discount rate 4.00 % 3.66 % Other information related to the Company’s operating leases are as follows: Other Information Six Months Ended (in thousands) 2024 2023 Operating cash flows used for operating leases $ 15,514 $ 14,906 Right of use assets obtained in exchange for new $ 27,245 $ 7,225

SHAREHOLDERS' EQUITY (DEFICIT)

SHAREHOLDERS' EQUITY (DEFICIT)	6 Months Ended
SHAREHOLDERS' EQUITY (DEFICIT)	Jun. 30, 2024
Equity [Abstract]
SHAREHOLDERS' EQUITY (DEFICIT)	SHAREHOLDERS’ EQUITY (DEFICIT) Return of capital On July 28, 2022, the Board of Directors authorized a stock repurchase program (the “2022 Repurchase Program”) for the purchase of up to $1,000.0 million worth of shares of MSCI’s common stock in addition to the $539.1 million of authorization then remaining under a previously existing share repurchase program that was replaced by, and incorporated into, the 2022 Repurchase Program for a total of $1,539.1 million of stock repurchase authorization available under the 2022 Repurchase Program. Share repurchases made pursuant to the 2022 Repurchase Program may take place in the open market or in privately negotiated transactions from time to time based on market and other conditions. This authorization may be modified, suspended or terminated by the Board of Directors at any time without prior notice. As of June 30, 2024, there was $604.2 million of available authorization remaining under the 2022 Repurchase Program. The following table provides information with respect to repurchases of the Company’s common stock made on the open market: Six months ended (in thousands, except per share data) Average Total Dollar Value of Shares Repurchased (1) June 30, 2024 $ 483.79 499 $ 241,518 June 30, 2023 $ 468.31 941 $ 440,847 ___________________________ (1) The values in this column exclude the 1% excise tax incurred on share repurchases pursuant to the Inflation Reduction Act. Any excise tax incurred is recognized as part of the cost of the shares acquired in the Unaudited Condensed Consolidated Statement of Shareholders’ Equity (Deficit). The following table presents dividends declared per common share as well as total amounts declared, distributed and deferred for the periods indicated: Dividends (in thousands, except per share data) Per Share Declared Distributed (Released)/Deferred 2024 Three Months Ended March 31, $ 1.60 $ 129,444 $ 131,378 $ (1,934) Three Months Ended June 30, 1.60 127,304 126,958 346 Total $ 3.20 $ 256,748 $ 258,336 $ (1,588) 2023 Three Months Ended March 31, $ 1.38 $ 111,986 $ 112,189 $ (203) Three Months Ended June 30, 1.38 110,383 110,147 236 Total $ 2.76 $ 222,369 $ 222,336 $ 33 Common Stock The following table presents activity related to shares of common stock issued and repurchased during the six months ended June 30, 2024: Common Stock Treasury Common Stock Issued Stock Outstanding Balance at December 31, 2023 133,817,332 (54,726,120) 79,091,212 Dividend payable/paid 61 — 61 Common stock issued 252,637 — 252,637 Shares withheld for tax withholding — (119,861) (119,861) Shares repurchased under stock repurchase programs — — — Shares issued to directors 67 (67) — Balance at March 31, 2024 134,070,097 (54,846,048) 79,224,049 Dividend payable/paid — — — Common stock issued 779 — 779 Shares withheld for tax withholding — (359) (359) Shares repurchased under stock repurchase programs — (499,224) (499,224) Shares issued to directors 4,941 19,499 24,440 Balance at June 30, 2024 134,075,817 (55,326,132) 78,749,685

INCOME TAXES

INCOME TAXES	6 Months Ended
INCOME TAXES	Jun. 30, 2024
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company’s provision for income taxes was $113.2 million and $98.0 million for the six months ended June 30, 2024 and 2023, respectively. The effective tax rate of 17.8% for the six months ended June 30, 2024 reflects the Company’s estimate of the effective tax rate for the period and was impacted by certain favorable discrete items totaling $16.0 million, related to $15.7 million of excess tax benefits recognized on share-based compensation vested during the period and $0.3 million related to prior-year items. The effective tax rate of 16.8% for the six months ended June 30, 2023 reflects the Company’s estimate of the effective tax rate for the period and was impacted by certain favorable discrete items totaling $16.4 million, primarily related to $11.2 million of excess tax benefits recognized on share-based compensation vested during the period and $5.2 million related to prior-year items. The Company is under or open to examination by the IRS and other tax authorities in certain jurisdictions, including foreign jurisdictions, such as the United Kingdom, Switzerland and India, and states in the United States in which the Company has significant operations, such as New York and California. The tax years currently under or open to examination vary by jurisdiction but include years from 2008 onwards. The Company regularly assesses the likelihood of additional assessments in each of the taxing jurisdictions in which it files income tax returns. The Company has established unrecognized tax benefits that the Company believes are adequate in relation to the potential for additional assessments. Once established, the Company adjusts unrecognized tax benefits only when more information is available or when an event occurs necessitating a change. Based on the current status of income tax audits, the Company believes it is reasonably possible that the total amount of unrecognized benefits may decrease by approximately $22.1 million in the next twelve months as a result of the resolution of prior-year items. During the three and six months ended June 30, 2024, the Company’s unrecognized tax benefits increased by $3.5 million and increased by $2.1 million, respectively.

SEGMENT INFORMATION

SEGMENT INFORMATION	6 Months Ended
SEGMENT INFORMATION	Jun. 30, 2024
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company has five operating segments: Index, Analytics, ESG and Climate, Real Assets and Private Capital Solutions, which are presented as the following four reportable segments: Index, Analytics, ESG and Climate and All Other – Private Assets. During the year ended December 31, 2023, the Company renamed the Burgiss operating segment to Private Capital Solutions. The operating segments of Real Assets and Private Capital Solutions do not individually meet the segment reporting thresholds and have been combined and presented as part of All Other – Private Assets reportable segment. Prior to the step acquisition of Burgiss on October 2, 2023, the Company’s ownership interest in Burgiss was classified as an equity-method investment. Therefore, prior to the acquisition of Burgiss, the All Other – Private Assets segment did not include the Company’s proportionate share of operating revenues and Adjusted EBITDA related to Burgiss. The Company’s proportionate share of the income or loss from its equity-method investment in Burgiss was not a component of Adjusted EBITDA as it was reported as a component of other (expense) income, net. Following the acquisition, the consolidated results of Burgiss were included in the Company’s Private Capital Solutions operating segment. The Index operating segment offers equity and fixed income indexes. The indexes are used in many areas of the investment process, including for developing indexed financial products (e.g., Exchange Traded Funds (“ETFs”), mutual funds, annuities, futures, options, structured products and over-the-counter derivatives), performance benchmarking, portfolio construction and rebalancing, and asset allocation. The Analytics operating segment offers risk management, performance attribution and portfolio management content, applications and services that provide clients with an integrated view of risk and return and tools for analyzing market, credit, liquidity, counterparty and climate risk across all major asset classes, spanning short-, medium- and long-term time horizons. Clients access Analytics tools and content through MSCI’s proprietary applications and application programming interfaces, third-party applications or directly through their own platforms. Additionally, the Analytics operating segment also provides various managed services to help clients operate more efficiently, including consolidation of client portfolio data from various sources, review and reconciliation of input data and results, and customized reporting. The ESG and Climate operating segment offers products and services that help institutional investors understand how ESG and climate considerations can impact the long-term risk and return of their portfolio and individual security-level investments. In addition, the ESG and Climate operating segment provides data, ratings, research and tools to help investors navigate increasing regulation, meet new client demands and better integrate ESG and climate elements into their investment processes. The Real Assets operating segment offers data, benchmarks, return-analytics, climate assessments and market insights for tangible assets such as real estate and infrastructure. In addition, Real Assets performance and risk analytics range from enterprise-wide to property-specific analysis. The Real Assets operating segment also provides business intelligence products to real estate owners, managers, developers and brokers worldwide. The Private Capital Solutions operating segment offers a suite of tools to help private asset investors across mission-critical workflows, such as sourcing terms and conditions, evaluating operating performance of underlying portfolio companies, managing risk and other activities supporting private capital investing. The Chief Operating Decision Maker (“CODM”) measures and evaluates reportable segments based on segment operating revenues as well as Adjusted EBITDA and other measures. The Company excludes the following items from segment Adjusted EBITDA: provision for income taxes, other expense (income), net, depreciation and amortization of property, equipment and leasehold improvements, amortization of intangible assets and, at times, certain other transactions or adjustments, including certain acquisition-related integration and transaction costs, that the CODM does not consider for the purposes of making decisions to allocate resources among segments or to assess segment performance. Although these amounts are excluded from segment Adjusted EBITDA, they are included in reported consolidated net income and are included in the reconciliation that follows. The following table presents operating revenues by reportable segment for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating revenues Index $ 397,192 $ 362,316 $ 771,064 $ 701,698 Analytics 165,995 149,881 329,961 296,951 ESG and Climate 79,855 71,219 157,739 138,277 All Other - Private Assets 64,907 37,741 129,150 76,449 Total $ 707,949 $ 621,157 $ 1,387,914 $ 1,213,375 The following table presents segment profitability and a reconciliation to net income for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Index Adjusted EBITDA $ 306,990 $ 277,070 $ 584,750 $ 530,752 Analytics Adjusted EBITDA 81,672 65,149 153,884 125,929 ESG and Climate Adjusted EBITDA 23,930 22,798 45,021 40,674 All Other - Private Assets Adjusted EBITDA 17,363 12,289 29,873 24,680 Total reportable segment profitability 429,955 377,306 813,528 722,035 Amortization of intangible assets 40,773 26,154 79,377 50,821 Depreciation and amortization of property, equipment and leasehold improvements 4,226 5,199 8,307 10,659 Acquisition-related integration and transaction costs (1) 2,348 — 3,854 — Operating income 382,608 345,953 721,990 660,555 Other expense (income), net 42,614 38,795 86,103 77,025 Provision for income taxes 73,236 60,333 113,175 97,977 Net income $ 266,758 $ 246,825 $ 522,712 $ 485,553 ___________________________ (1) Represents transaction expenses and other costs directly related to the acquisition and integration of acquired businesses, including professional fees, severance expenses, regulatory filing fees and other costs, in each case that are incurred no later than 12 months after the close of the relevant acquisition. Operating revenues by geography are primarily based on the shipping address of the ultimate customer utilizing the product. The following table presents operating revenues by geographic area for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating revenues Americas: United States $ 290,443 $ 256,434 $ 571,118 $ 494,850 Other 32,986 27,574 63,345 55,110 Total Americas 323,429 284,008 634,463 549,960 Europe, the Middle East and Africa ("EMEA"): United Kingdom 116,245 99,692 229,538 191,352 Other 157,278 139,851 308,962 278,170 Total EMEA 273,523 239,543 538,500 469,522 Asia & Australia: Japan 28,971 24,285 55,544 50,302 Other 82,026 73,321 159,407 143,591 Total Asia & Australia 110,997 97,606 214,951 193,893 Total $ 707,949 $ 621,157 $ 1,387,914 $ 1,213,375 Long-lived assets consist of property, equipment and leasehold improvements, right of use assets and internally developed capitalized software, net of accumulated depreciation and amortization. The following table presents long-lived assets by geographic area on the dates indicated: As of June 30, December 31, (in thousands) 2024 2023 Long-lived assets Americas: United States $ 241,727 $ 204,238 Other 9,621 11,585 Total Americas 251,348 215,823 EMEA: United Kingdom 17,466 18,403 Other 21,527 22,072 Total EMEA 38,993 40,475 Asia & Australia: Japan 985 1,321 Other 29,900 31,507 Total Asia & Australia 30,885 32,828 Total $ 321,226 $ 289,126

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
SUBSEQUENT EVENTS	Jun. 30, 2024
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On July 22, 2024, the Board of Directors declared a quarterly cash dividend of $1.60 per share for the three months ending September 30, 2024 (“third quarter 2024”). The third quarter 2024 dividend is payable on August 30, 2024 to shareholders of record as of the close of trading on August 16, 2024.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net income	$ 266,758	$ 255,954	$ 246,825	$ 238,728	$ 522,712	$ 485,553

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

INTRODUCTION AND BASIS OF PRE_2

INTRODUCTION AND BASIS OF PRESENTATION (Policies)	6 Months Ended
INTRODUCTION AND BASIS OF PRESENTATION (Policies)	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation and Use of Estimates The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023. If not materially different, certain note disclosures included therein have been omitted from these interim condensed consolidated financial statements. In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim consolidated financial statements, have been included. The results of operations for interim periods are not necessarily indicative of results for the entire year.
Use of Estimates	The Company makes certain estimates and judgments that can affect the reported amounts of assets and liabilities as of the date of the unaudited condensed consolidated financial statements, as well as the reported amounts of operating revenues and expenses during the periods presented. Significant estimates and judgments made by management include such examples as assessment of impairment of goodwill and intangible assets and income taxes. The Company believes that estimates used in the preparation of these unaudited condensed consolidated financial statements are reasonable; however, actual results could differ materially from these estimates. Inter-company balances and transactions are eliminated in consolidation.
Concentrations	Concentrations For the six months ended June 30, 2024 and 2023, BlackRock, Inc. (“BlackRock”) accounted for 10.1% and 10.0% of the Company’s consolidated operating revenues, respectively. For the six months ended June 30, 2024 and 2023, BlackRock accounted for 17.8% and 16.9% of the Index segment’s operating revenues, respectively. No single customer represented 10.0% or more of operating revenues within the Analytics, ESG and Climate or All Other – Private Assets segments for the six months ended June 30, 2024 and 2023.
Recent Accounting Pronouncements	In November 2023, the FASB issued Accounting Standards Update No. 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” or ASU 2023-07. The amendments in ASU 2023-07 aim to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, and subsequent interim periods, with early adoption permitted. The Company is currently evaluating the impact of this update on disclosures within its consolidated financial statements. In December 2023, the FASB issued Accounting Standards Update No. 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” or ASU 2023-09. The amendments in ASU 2023-09 aim to enhance the transparency and decision usefulness of income tax disclosures. ASU 2023-09 is effective for the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, with early adoption permitted. The Company is currently evaluating the impact of this update on disclosures within its consolidated financial statements.

INTRODUCTION AND BASIS OF PRE_3

INTRODUCTION AND BASIS OF PRESENTATION (Tables)	6 Months Ended
INTRODUCTION AND BASIS OF PRESENTATION (Tables)	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Changes in Allowance for Credit Losses	Changes in the allowance for credit losses from December 31, 2022 to June 30, 2024 were as follows: (in thousands) Amount Balance as of December 31, 2022 $ 2,652 Addition to credit loss expense 2,196 Write-offs, net of recoveries (880) Balance as of December 31, 2023 $ 3,968 Addition to credit loss expense 1,611 Write-offs, net of recoveries (1,103) Balance as of June 30, 2024 $ 4,476

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	6 Months Ended
REVENUE RECOGNITION (Tables)	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Operating Revenue	The tables that follow present the disaggregated operating revenues for the periods indicated: For the Three Months Ended June 30, 2024 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 217,032 $ 162,128 $ 78,000 $ 64,309 $ 521,469 Asset-based fees 163,281 — — — 163,281 Non-recurring 16,879 3,867 1,855 598 23,199 Total $ 397,192 $ 165,995 $ 79,855 $ 64,907 $ 707,949 For the Six Months Ended June 30, 2024 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 429,984 $ 322,679 $ 154,418 $ 127,443 $ 1,034,524 Asset-based fees 313,540 — — — 313,540 Non-recurring 27,540 7,282 3,321 1,707 39,850 Total $ 771,064 $ 329,961 $ 157,739 $ 129,150 $ 1,387,914 For the Three Months Ended June 30, 2023 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 200,714 $ 147,504 $ 70,047 $ 37,427 $ 455,692 Asset-based fees 138,162 — — — 138,162 Non-recurring 23,440 2,377 1,172 314 27,303 Total $ 362,316 $ 149,881 $ 71,219 $ 37,741 $ 621,157 For the Six Months Ended June 30, 2023 Segments (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Operating Revenue Types Recurring subscriptions $ 397,392 $ 292,007 $ 135,779 $ 75,761 $ 900,939 Asset-based fees 271,288 — — — 271,288 Non-recurring 33,018 4,944 2,498 688 41,148 Total $ 701,698 $ 296,951 $ 138,277 $ 76,449 $ 1,213,375
Schedule of Change in Accounts Receivable and Current Deferred Revenue	The tables that follow present the change in accounts receivable, net of allowances, and current deferred revenue between the dates indicated: (in thousands) Accounts receivable, net of allowances Deferred revenue Opening (December 31, 2023) $ 839,555 $ 1,083,864 Closing (June 30, 2024) 709,487 1,017,997 Increase/(decrease) $ (130,068) $ (65,867) (in thousands) Accounts receivable, net of allowances Deferred revenue Opening (December 31, 2022) $ 663,236 $ 882,886 Closing (June 30, 2023) 612,885 909,623 Increase/(decrease) $ (50,351) $ 26,737
Schedule of Remaining Performance Obligations	The remaining performance obligations for contracts that have a duration of greater than one year and the periods in which they are expected to be recognized are as follows: As of June 30, (in thousands) 2024 First 12-month period $ 879,064 Second 12-month period 551,575 Third 12-month period 272,953 Periods thereafter 175,858 Total $ 1,879,450

EARNINGS PER COMMON SHARE (Tabl

EARNINGS PER COMMON SHARE (Tables)	6 Months Ended
EARNINGS PER COMMON SHARE (Tables)	Jun. 30, 2024
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted EPS	The following table presents the computation of basic and diluted EPS: Three Months Ended Six Months Ended (in thousands, except per share data) 2024 2023 2024 2023 Net income $ 266,758 $ 246,825 $ 522,712 $ 485,553 Basic weighted average common shares outstanding 79,085 79,592 79,140 79,815 Effect of dilutive securities: PSUs, RSUs and PSOs 160 313 237 378 Diluted weighted average common shares outstanding 79,245 79,905 79,377 80,193 Earnings per common share: Basic $ 3.37 $ 3.10 $ 6.60 $ 6.08 Diluted $ 3.37 $ 3.09 $ 6.59 $ 6.05

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	6 Months Ended
ACQUISITIONS (Tables)	Jun. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Schedule of Components of Preliminary Purchase Price Allocation	The table below represents the preliminary purchase price allocation to total assets acquired and liabilities assumed and the associated estimated useful lives as of the acquisition date. (in thousands) Estimated Fair Value Cash and cash equivalents $ 5,397 Accounts receivable 25,839 Prepaid Income Taxes 30 Other current assets 4,178 Property, equipment and leasehold improvements, net 670 Right of use assets 3,443 Other non-current assets 471 Deferred revenue (21,479) Other current liabilities (13,412) Long-term operating lease liabilities (2,525) Intangible assets: Proprietary data 11 years 229,900 Customer relationships 21 years 179,900 Acquired technology and software 3 years 19,000 Trademarks 1 year 900 Goodwill 617,622 Net assets acquired $ 1,049,934
Schedule of Preliminary Acquired Balances Related to Acquisition	The following table presents the preliminary acquired balances related to the acquisitions of Trove, Fabric and Foxberry: (in thousands, except weighted average amortization period of intangible asset) Trove Fabric Foxberry Acquisition Date November 1, 2023 January 2, 2024 April 16, 2024 Cash payments $ 37,473 $ 7,959 $ 20,945 Deferred payments — — 2,529 Contingent consideration liability — 8,146 19,094 Aggregate purchase price $ 37,473 $ 16,105 $ 42,568 Net tangible assets acquired (liabilities assumed) $ (4,787) $ (226) $ 1,748 Intangible assets 7,705 11,300 22,500 Goodwill 34,555 5,031 18,320 Aggregate purchase price $ 37,473 $ 16,105 $ 42,568 Weighted average amortization period of intangible assets (years) 13.0 9.1 7.9
Schedule of Changes in the Company’s Level 3 Financial Liabilities	Changes in the Company’s Level 3 financial liabilities for the three and six months ended June 30, 2024 and 2023, respectively, were as follows: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Beginning balance $ 8,269 $ — $ — $ — Additions of contingent consideration 1 19,094 — 27,240 — Change in fair value 383 — 506 — Payments — — — $ — Ending Balance $ 27,746 $ — $ 27,746 $ — ___________________________ (1) Reflects balance of contingent consideration at acquisition date fair value.

PROPERTY, EQUIPMENT AND LEASE_2

PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET (Tables)	6 Months Ended
	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
Schedule of Property, Equipment and Leasehold Improvements, Net	Property, equipment and leasehold improvements, net consisted of the following as of the dates indicated: As of June 30, December 31, (in thousands) 2024 2023 Computer & related equipment $ 172,371 $ 192,008 Furniture & fixtures 15,764 16,169 Leasehold improvements 56,283 58,582 Work-in-process 3,506 897 Subtotal 247,924 267,656 Accumulated depreciation and amortization (183,950) (211,736) Property, equipment and leasehold improvements, net $ 63,974 $ 55,920

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS, NET (Tables)	6 Months Ended
GOODWILL AND INTANGIBLE ASSETS, NET (Tables)	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Change to Company's Goodwill	The following table presents goodwill by reportable segment: (in thousands) Index Analytics ESG and Climate All Other - Private Assets Total Goodwill at December 31, 2023 $ 1,203,435 $ 290,976 $ 84,724 $ 1,308,557 $ 2,887,692 Acquisitions (1) 18,320 5,031 (357) (793) 22,200 Foreign exchange translation adjustment 11 — (323) (166) (477) Goodwill at June 30, 2024 $ 1,221,766 $ 296,007 $ 84,044 $ 1,307,598 $ 2,909,415 ___________________________ (1) Reflects the impact of the acquisitions of Foxberry, Fabric, Trove and Burgiss.
Schedule of Amortization Expense Related to Intangible Assets by Category	The following table presents the amount of amortization expense related to intangible assets by category for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Amortization expense of acquired intangible assets $ 25,893 $ 15,851 $ 51,160 $ 31,682 Amortization expense of internally developed capitalized software 14,880 10,303 28,217 19,139 Total amortization of intangible assets expense $ 40,773 $ 26,154 $ 79,377 $ 50,821
Schedule of Gross Carrying and Accumulated Amortization Amounts Related to Company's Intangible Assets	The gross carrying and accumulated amortization amounts related to the Company’s intangible assets were as follows: June 30, 2024 December 31, 2023 (in thousands) Gross intangible assets: Accumulated amortization: Net intangible assets: Gross intangible assets: Accumulated amortization: Net intangible assets: Customer relationships $ 715,165 $ (359,623) $ 355,542 $ 709,299 $ (340,248) $ 369,051 Proprietary data 452,232 (84,858) 367,374 452,543 (64,694) 387,849 Acquired technology and software 256,967 (191,957) 65,010 228,785 (185,583) 43,202 Trademarks 209,090 (176,730) 32,360 209,090 (171,715) 37,375 Internally developed capitalized software 274,914 (146,034) 128,880 237,060 (118,303) 118,757 Total $ 1,908,368 $ (959,202) $ 949,166 $ 1,836,777 $ (880,543) $ 956,234
Schedule of Estimated Amortization Expense for Remainder Succeeding Years	The following table presents the estimated amortization expense for the remainder of the year ending December 31, 2024 and succeeding years: Years Ending December 31, Amortization Remainder of 2024 $ 83,804 2025 144,112 2026 108,685 2027 77,707 2028 69,711 Thereafter 465,147 Total $ 949,166

DEBT (Tables)

DEBT (Tables)	6 Months Ended
DEBT (Tables)	Jun. 30, 2024
Debt Disclosure [Abstract]
Schedule of Senior Unsecured Notes	As of June 30, 2024, the Company had outstanding an aggregate of $4,200.0 million in senior unsecured notes (collectively, the “Senior Notes”) and $336.9 million under the Revolving Credit Facility (as defined below) as presented in the table below: Principal Carrying Carrying Fair Fair (in thousands) Maturity Date June 30, 2024 June 30, 2024 December 31, 2023 June 30, 2024 December 31, 2023 Debt 4.000% senior unsecured notes due 2029 November 15, 2029 $ 1,000,000 $ 994,182 $ 993,637 $ 933,350 $ 941,090 3.625% senior unsecured notes due 2030 September 1, 2030 900,000 895,918 895,587 809,514 815,526 3.875% senior unsecured notes due 2031 February 15, 2031 1,000,000 992,708 992,161 899,970 914,360 3.625% senior unsecured notes due 2031 November 1, 2031 600,000 595,181 594,852 526,722 529,458 3.250% senior unsecured notes due 2033 August 15, 2033 700,000 693,866 693,532 578,998 586,509 Variable rate Tranche A Term Loans due 2027 February 16, 2027 — — 337,959 — 337,367 Variable rate revolving loan commitments (1) January 26, 2029 336,875 336,875 — 335,191 — Total debt $ 4,536,875 $ 4,508,730 $ 4,507,728 $ 4,083,745 $ 4,124,310 ___________________________ (1) As of June 30, 2024, there were $4.5 million in unamortized deferred financing fees associated with the variable rate revolving loan commitments of which $1.0 million is included in “Prepaid and other assets,” and $3.5 million is included in “Other non-current assets” on the Unaudited Condensed Consolidated Statement of Financial Condition.
Schedule of Maturities of Long-Term Debt	Maturities of the Company’s principal debt payments as of June 30, 2024 are as follows: Maturity of Principal Debt Payments Amounts Remainder of 2024 $ — 2025 — 2026 — 2027 — 2028 — Thereafter 4,536,875 Total debt $ 4,536,875
Schedule of Interest Payments Due Attributable to Outstanding indebtedness	Interest payments attributable to the Company’s outstanding indebtedness are due as presented in the following table: Interest payment frequency First interest Senior Notes and Revolving Loan Commitments 4.000% senior unsecured notes due 2029 Semi-Annual May 15 3.625% senior unsecured notes due 2030 Semi-Annual March 1 3.875% senior unsecured notes due 2031 Semi-Annual June 1 3.625% senior unsecured notes due 2031 Semi-Annual May 1 3.250% senior unsecured notes due 2033 Semi-Annual February 15 Variable rate revolving loan commitments (1) Variable February 26 ___________________________ (1) The first payment occurred on February 26, 2024.

LEASES (Tables)

LEASES (Tables)	6 Months Ended
LEASES (Tables)	Jun. 30, 2024
Leases [Abstract]
Schedule of Components of Lease Expense (Income), Weighted-Average Remaining Lease Term and Discount Rate, and Other Information Related to the Company's Operating Leases	The components of lease expense (income) of the Company’s operating leases are as follows: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating lease expenses $ 7,655 $ 7,178 $ 14,794 $ 14,292 Variable lease costs 550 930 1,619 1,821 Short-term lease costs 224 188 439 439 Sublease income (918) (1,276) (1,746) (2,551) Total lease costs $ 7,511 $ 7,020 $ 15,106 $ 14,001 Weighted-average remaining lease term and discount rate for the Company’s operating leases are as follows: As of June 30, December 31, Lease Term and Discount Rate 2024 2023 Weighted-average remaining lease term (years) 6.49 7.04 Weighted-average discount rate 4.00 % 3.66 % Other information related to the Company’s operating leases are as follows: Other Information Six Months Ended (in thousands) 2024 2023 Operating cash flows used for operating leases $ 15,514 $ 14,906 Right of use assets obtained in exchange for new $ 27,245 $ 7,225
Schedule of Maturities of Operating Lease Liability	Maturities of the Company’s operating lease liabilities as of June 30, 2024 are as follows: Maturity of Lease Liabilities Operating (in thousands) Leases Remainder of 2024 $ 14,657 2025 32,290 2026 30,121 2027 23,930 2028 23,176 Thereafter 52,778 Total lease payments $ 176,952 Less: Interest (21,202) Present value of lease liabilities $ 155,750 Other accrued liabilities $ 25,191 Long-term operating lease liabilities $ 130,559

SHAREHOLDERS' EQUITY (DEFICIT)

SHAREHOLDERS' EQUITY (DEFICIT) (Tables)	6 Months Ended
SHAREHOLDERS' EQUITY (DEFICIT) (Tables)	Jun. 30, 2024
Equity [Abstract]
Schedule of Company's Common Stock Repurchases Made on Open Market	The following table provides information with respect to repurchases of the Company’s common stock made on the open market: Six months ended (in thousands, except per share data) Average Total Dollar Value of Shares Repurchased (1) June 30, 2024 $ 483.79 499 $ 241,518 June 30, 2023 $ 468.31 941 $ 440,847 ___________________________ (1) The values in this column exclude the 1% excise tax incurred on share repurchases pursuant to the Inflation Reduction Act. Any excise tax incurred is recognized as part of the cost of the shares acquired in the Unaudited Condensed Consolidated Statement of Shareholders’ Equity (Deficit).
Schedule of Dividends Declared Per Common Share and Total Amounts Declared, Distributed and Deferred	The following table presents dividends declared per common share as well as total amounts declared, distributed and deferred for the periods indicated: Dividends (in thousands, except per share data) Per Share Declared Distributed (Released)/Deferred 2024 Three Months Ended March 31, $ 1.60 $ 129,444 $ 131,378 $ (1,934) Three Months Ended June 30, 1.60 127,304 126,958 346 Total $ 3.20 $ 256,748 $ 258,336 $ (1,588) 2023 Three Months Ended March 31, $ 1.38 $ 111,986 $ 112,189 $ (203) Three Months Ended June 30, 1.38 110,383 110,147 236 Total $ 2.76 $ 222,369 $ 222,336 $ 33
Schedule of Activity Related to Shares of Common Stock Issued and Repurchased	The following table presents activity related to shares of common stock issued and repurchased during the six months ended June 30, 2024: Common Stock Treasury Common Stock Issued Stock Outstanding Balance at December 31, 2023 133,817,332 (54,726,120) 79,091,212 Dividend payable/paid 61 — 61 Common stock issued 252,637 — 252,637 Shares withheld for tax withholding — (119,861) (119,861) Shares repurchased under stock repurchase programs — — — Shares issued to directors 67 (67) — Balance at March 31, 2024 134,070,097 (54,846,048) 79,224,049 Dividend payable/paid — — — Common stock issued 779 — 779 Shares withheld for tax withholding — (359) (359) Shares repurchased under stock repurchase programs — (499,224) (499,224) Shares issued to directors 4,941 19,499 24,440 Balance at June 30, 2024 134,075,817 (55,326,132) 78,749,685

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	6 Months Ended
SEGMENT INFORMATION (Tables)	Jun. 30, 2024
Segment Reporting [Abstract]
Schedule of Operating Revenues by Reportable Segment	The following table presents operating revenues by reportable segment for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating revenues Index $ 397,192 $ 362,316 $ 771,064 $ 701,698 Analytics 165,995 149,881 329,961 296,951 ESG and Climate 79,855 71,219 157,739 138,277 All Other - Private Assets 64,907 37,741 129,150 76,449 Total $ 707,949 $ 621,157 $ 1,387,914 $ 1,213,375
Schedule of Segment Profitability and Reconciliation to Net Income	The following table presents segment profitability and a reconciliation to net income for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Index Adjusted EBITDA $ 306,990 $ 277,070 $ 584,750 $ 530,752 Analytics Adjusted EBITDA 81,672 65,149 153,884 125,929 ESG and Climate Adjusted EBITDA 23,930 22,798 45,021 40,674 All Other - Private Assets Adjusted EBITDA 17,363 12,289 29,873 24,680 Total reportable segment profitability 429,955 377,306 813,528 722,035 Amortization of intangible assets 40,773 26,154 79,377 50,821 Depreciation and amortization of property, equipment and leasehold improvements 4,226 5,199 8,307 10,659 Acquisition-related integration and transaction costs (1) 2,348 — 3,854 — Operating income 382,608 345,953 721,990 660,555 Other expense (income), net 42,614 38,795 86,103 77,025 Provision for income taxes 73,236 60,333 113,175 97,977 Net income $ 266,758 $ 246,825 $ 522,712 $ 485,553 ___________________________ (1) Represents transaction expenses and other costs directly related to the acquisition and integration of acquired businesses, including professional fees, severance expenses, regulatory filing fees and other costs, in each case that are incurred no later than 12 months after the close of the relevant acquisition.
Schedule of Operating Revenues by Geographic Area	Operating revenues by geography are primarily based on the shipping address of the ultimate customer utilizing the product. The following table presents operating revenues by geographic area for the periods indicated: Three Months Ended Six Months Ended (in thousands) 2024 2023 2024 2023 Operating revenues Americas: United States $ 290,443 $ 256,434 $ 571,118 $ 494,850 Other 32,986 27,574 63,345 55,110 Total Americas 323,429 284,008 634,463 549,960 Europe, the Middle East and Africa ("EMEA"): United Kingdom 116,245 99,692 229,538 191,352 Other 157,278 139,851 308,962 278,170 Total EMEA 273,523 239,543 538,500 469,522 Asia & Australia: Japan 28,971 24,285 55,544 50,302 Other 82,026 73,321 159,407 143,591 Total Asia & Australia 110,997 97,606 214,951 193,893 Total $ 707,949 $ 621,157 $ 1,387,914 $ 1,213,375
Schedule of Long-Lived Assets by Geographic Area	Long-lived assets consist of property, equipment and leasehold improvements, right of use assets and internally developed capitalized software, net of accumulated depreciation and amortization. The following table presents long-lived assets by geographic area on the dates indicated: As of June 30, December 31, (in thousands) 2024 2023 Long-lived assets Americas: United States $ 241,727 $ 204,238 Other 9,621 11,585 Total Americas 251,348 215,823 EMEA: United Kingdom 17,466 18,403 Other 21,527 22,072 Total EMEA 38,993 40,475 Asia & Australia: Japan 985 1,321 Other 29,900 31,507 Total Asia & Australia 30,885 32,828 Total $ 321,226 $ 289,126

INTRODUCTION AND BASIS OF PRE_4

INTRODUCTION AND BASIS OF PRESENTATION - Narrative (Details) - Blackrock Inc - Customer Concentration Risk	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Revenue from Contract with Customer, Product and Service Benchmark
Introduction And Basis Of Presentation [Line Items]
Percentage of operating revenues accounted for by major customer	10.10%	10%
Revenue from Contract with Customer, Segment Benchmark \| Index
Introduction And Basis Of Presentation [Line Items]
Percentage of operating revenues accounted for by major customer	17.80%	16.90%

INTRODUCTION AND BASIS OF PRE_5

INTRODUCTION AND BASIS OF PRESENTATION - Schedule of Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Accounts receivable, net of allowances
Balance at beginning of year	$ 3,968	$ 2,652
Addition to credit loss expense	1,611	2,196
Write-offs, net of recoveries	(1,103)	(880)
Balance at ending of year	$ 4,476	$ 3,968

REVENUE RECOGNITION - Schedule

REVENUE RECOGNITION - Schedule of Disaggregation of Operating Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation Of Revenue [Line Items]
Operating revenues	$ 707,949	$ 621,157	$ 1,387,914	$ 1,213,375
Index
Disaggregation Of Revenue [Line Items]
Operating revenues	397,192	362,316	771,064	701,698
Analytics
Disaggregation Of Revenue [Line Items]
Operating revenues	165,995	149,881	329,961	296,951
ESG and Climate
Disaggregation Of Revenue [Line Items]
Operating revenues	79,855	71,219	157,739	138,277
All Other - Private Assets
Disaggregation Of Revenue [Line Items]
Operating revenues	64,907	37,741	129,150	76,449
Recurring subscriptions
Disaggregation Of Revenue [Line Items]
Operating revenues	521,469	455,692	1,034,524	900,939
Recurring subscriptions \| Index
Disaggregation Of Revenue [Line Items]
Operating revenues	217,032	200,714	429,984	397,392
Recurring subscriptions \| Analytics
Disaggregation Of Revenue [Line Items]
Operating revenues	162,128	147,504	322,679	292,007
Recurring subscriptions \| ESG and Climate
Disaggregation Of Revenue [Line Items]
Operating revenues	78,000	70,047	154,418	135,779
Recurring subscriptions \| All Other - Private Assets
Disaggregation Of Revenue [Line Items]
Operating revenues	64,309	37,427	127,443	75,761
Asset-based fees
Disaggregation Of Revenue [Line Items]
Operating revenues	163,281	138,162	313,540	271,288
Asset-based fees \| Index
Disaggregation Of Revenue [Line Items]
Operating revenues	163,281	138,162	313,540	271,288
Asset-based fees \| Analytics
Disaggregation Of Revenue [Line Items]
Operating revenues	0	0	0	0
Asset-based fees \| ESG and Climate
Disaggregation Of Revenue [Line Items]
Operating revenues	0	0	0	0
Asset-based fees \| All Other - Private Assets
Disaggregation Of Revenue [Line Items]
Operating revenues	0	0	0	0
Non-recurring
Disaggregation Of Revenue [Line Items]
Operating revenues	23,199	27,303	39,850	41,148
Non-recurring \| Index
Disaggregation Of Revenue [Line Items]
Operating revenues	16,879	23,440	27,540	33,018
Non-recurring \| Analytics
Disaggregation Of Revenue [Line Items]
Operating revenues	3,867	2,377	7,282	4,944
Non-recurring \| ESG and Climate
Disaggregation Of Revenue [Line Items]
Operating revenues	1,855	1,172	3,321	2,498
Non-recurring \| All Other - Private Assets
Disaggregation Of Revenue [Line Items]
Operating revenues	$ 598	$ 314	$ 1,707	$ 688

REVENUE RECOGNITION - Schedul_2

REVENUE RECOGNITION - Schedule of Change in Accounts Receivable and Current Deferred Revenue (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Accounts receivable, net of allowances
Opening	$ 839,555	$ 663,236
Closing	709,487	612,885
Increase/(decrease)	(130,068)	(50,351)
Deferred revenue
Opening	1,083,864	882,886
Closing	1,017,997	909,623
Increase/(decrease)	$ (65,867)	$ 26,737

REVENUE RECOGNITION - Narrative

REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Revenue Recognition [Line Items]
Revenue recognized during period included in deferred revenue	$ 285.3	$ 269.6	$ 705.6	$ 626.2
Disclosure of remaining performance policy			For contracts that have a duration of one year or less, the Company has not disclosed either the remaining performance obligation as of the end of the reporting period or when the Company expects to recognize the revenue.
Other Non-Current Liabilities
Revenue Recognition [Line Items]
Long-term deferred revenue	$ 27.4		$ 27.4		$ 28.8

REVENUE RECOGNITION - Schedul_3

REVENUE RECOGNITION - Schedule of Remaining Performance Obligations (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Revenue Recognition [Line Items]
Remaining performance obligations	$ 1,879,450
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-07-01
Revenue Recognition [Line Items]
Remaining performance obligations	$ 879,064
Remaining performance, expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01
Revenue Recognition [Line Items]
Remaining performance obligations	$ 551,575
Remaining performance, expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-07-01
Revenue Recognition [Line Items]
Remaining performance obligations	$ 272,953
Remaining performance, expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-07-01
Revenue Recognition [Line Items]
Remaining performance obligations	$ 175,858
Remaining performance, expected timing of satisfaction

EARNINGS PER COMMON SHARE (Deta

EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 266,758	$ 255,954	$ 246,825	$ 238,728	$ 522,712	$ 485,553
Basic weighted average common shares outstanding (in shares)	79,085		79,592		79,140	79,815
Effect of dilutive securities:
PSUs, RSUs and PSOs (in shares)	160		313		237	378
Diluted weighted average common shares outstanding (in USD per share)	79,245		79,905		79,377	80,193
Earnings per common share:
Basic (in USD per share)	$ 3.37		$ 3.10		$ 6.60	$ 6.08
Diluted (in USD per share)	$ 3.37		$ 3.09		$ 6.59	$ 6.05

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) - USD ($) $ in Thousands					3 Months Ended	6 Months Ended
ACQUISITIONS - Narrative (Details) - USD ($) $ in Thousands	Apr. 16, 2024	Jan. 02, 2024	Nov. 01, 2023	Oct. 02, 2023	Jun. 30, 2024	Jun. 30, 2024
Burgiss Group Limited Liability Company
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired				66.40%
Cash payments				$ 696,800
Existing interest in acquiree, percentage				33.60%
Fair value at acquisition date				$ 353,200
Pre-tax gain on remeasurement				$ 143,000
Weighted average amortization period of intangible assets (years)				14 years 9 months 18 days
Revenue of acquiree since acquisition date, actual					$ 26,800	$ 51,000
Trove Research Ltd
Business Acquisition [Line Items]
Cash payments			$ 37,473
Weighted average amortization period of intangible assets (years)			13 years
Revenue of acquiree since acquisition date, actual					1,100	2,400
Fabric RQ, Inc
Business Acquisition [Line Items]
Cash payments		$ 7,959
Weighted average amortization period of intangible assets (years)		9 years 1 month 6 days
Revenue of acquiree since acquisition date, actual					168	337
Foxberry
Business Acquisition [Line Items]
Cash payments	$ 20,945
Weighted average amortization period of intangible assets (years)	7 years 10 months 24 days
Revenue of acquiree since acquisition date, actual					$ 178	$ 178

ACQUISITIONS - Schedule of Comp

ACQUISITIONS - Schedule of Components of Preliminary Purchase Price Allocation (Details) - USD ($) $ in Thousands	Oct. 02, 2023	Jun. 30, 2024	Dec. 31, 2023
Intangible assets:
Goodwill		$ 2,909,415	$ 2,887,692
Burgiss Group Limited Liability Company
Business Acquisition [Line Items]
Cash and cash equivalents	$ 5,397
Accounts receivable	25,839
Prepaid Income Taxes	30
Other current assets	4,178
Property, equipment and leasehold improvements, net	670
Right of use assets	3,443
Other non-current assets	471
Deferred revenue	(21,479)
Other current liabilities	(13,412)
Long-term operating lease liabilities	(2,525)
Intangible assets:
Goodwill	617,622
Net assets acquired	$ 1,049,934
Estimated Useful Life	14 years 9 months 18 days
Burgiss Group Limited Liability Company \| Proprietary data
Intangible assets:
Intangible assets	$ 229,900
Estimated Useful Life	11 years
Burgiss Group Limited Liability Company \| Customer relationships
Intangible assets:
Intangible assets	$ 179,900
Estimated Useful Life	21 years
Burgiss Group Limited Liability Company \| Acquired technology and software
Intangible assets:
Intangible assets	$ 19,000
Estimated Useful Life	3 years
Burgiss Group Limited Liability Company \| Trademarks
Intangible assets:
Intangible assets	$ 900
Estimated Useful Life	1 year

ACQUISITIONS - Schedule of Prel

ACQUISITIONS - Schedule of Preliminary Acquired Balances Related to Acquisition (Details) - USD ($) $ in Thousands	Apr. 16, 2024	Jan. 02, 2024	Nov. 01, 2023	Jun. 30, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Contingent consideration liability				$ 27,700
Goodwill				2,909,415	$ 2,887,692
Other Accrued Liabilities
Business Acquisition [Line Items]
Contingent consideration liability				9,800
Other Non-Current Liabilities
Business Acquisition [Line Items]
Contingent consideration liability				$ 17,900
Trove
Business Acquisition [Line Items]
Cash payments			$ 37,473
Deferred payments			0
Contingent consideration liability			0
Aggregate purchase price			37,473
Net tangible assets acquired (liabilities assumed)			(4,787)
Intangible assets			7,705
Goodwill			34,555
Net assets acquired			$ 37,473
Weighted average amortization period of intangible assets (years)			13 years
Fabric
Business Acquisition [Line Items]
Cash payments		$ 7,959
Deferred payments		0
Contingent consideration liability		8,146
Aggregate purchase price		16,105
Net tangible assets acquired (liabilities assumed)		(226)
Intangible assets		11,300
Goodwill		5,031
Net assets acquired		$ 16,105
Weighted average amortization period of intangible assets (years)		9 years 1 month 6 days
Foxberry
Business Acquisition [Line Items]
Cash payments	$ 20,945
Deferred payments	2,529
Contingent consideration liability	19,094
Aggregate purchase price	42,568
Net tangible assets acquired (liabilities assumed)	1,748
Intangible assets	22,500
Goodwill	18,320
Net assets acquired	$ 42,568
Weighted average amortization period of intangible assets (years)	7 years 10 months 24 days

ACQUISITIONS - Schedule of Chan

ACQUISITIONS - Schedule of Changes in the Company’s Level 3 Financial Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 8,269	$ 0	$ 0	$ 0
Additions of contingent consideration	19,094	0	27,240	0
Change in fair value	383	0	506	0
Payments	0	0	0	0
Ending Balance	$ 27,746	$ 0	$ 27,746	$ 0

PROPERTY, EQUIPMENT AND LEASE_3

PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET - Schedule of Property, Equipment and Leasehold Improvements, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Computer & related equipment	$ 172,371	$ 192,008
Furniture & fixtures	15,764	16,169
Leasehold improvements	56,283	58,582
Work-in-process	3,506	897
Subtotal	247,924	267,656
Accumulated depreciation and amortization	(183,950)	(211,736)
Property, equipment and leasehold improvements, net	$ 63,974	$ 55,920

PROPERTY, EQUIPMENT AND LEASE_4

PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Property, Plant and Equipment [Abstract]
Depreciation and amortization of property, equipment and leasehold improvements	$ 4,226	$ 5,199	$ 8,307	$ 10,659

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Change to Company's Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 2,887,692
Acquisitions	22,200
Foreign exchange translation adjustment	(477)
Goodwill, ending balance	2,909,415
Index
Goodwill [Roll Forward]
Goodwill, beginning balance	1,203,435
Acquisitions	18,320
Foreign exchange translation adjustment	11
Goodwill, ending balance	1,221,766
Analytics
Goodwill [Roll Forward]
Goodwill, beginning balance	290,976
Acquisitions	5,031
Foreign exchange translation adjustment	0
Goodwill, ending balance	296,007
ESG and Climate
Goodwill [Roll Forward]
Goodwill, beginning balance	84,724
Acquisitions	(357)
Foreign exchange translation adjustment	(323)
Goodwill, ending balance	84,044
All Other - Private Assets
Goodwill [Roll Forward]
Goodwill, beginning balance	1,308,557
Acquisitions	(793)
Foreign exchange translation adjustment	(166)
Goodwill, ending balance	$ 1,307,598

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Amortization Expense Related to Intangible Assets by Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 40,773	$ 26,154	$ 79,377	$ 50,821
Amortization expense of acquired intangible assets
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	25,893	15,851	51,160	31,682
Amortization expense of internally developed capitalized software
Finite Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 14,880	$ 10,303	$ 28,217	$ 19,139

GOODWILL AND INTANGIBLE ASSET_5

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Gross Carrying and Accumulated Amortization Amounts Related to Company's Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	$ 1,908,368	$ 1,836,777
Accumulated amortization:	(959,202)	(880,543)
Net intangible assets:	949,166	956,234
Customer relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	715,165	709,299
Accumulated amortization:	(359,623)	(340,248)
Net intangible assets:	355,542	369,051
Proprietary data
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	452,232	452,543
Accumulated amortization:	(84,858)	(64,694)
Net intangible assets:	367,374	387,849
Acquired technology and software
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	256,967	228,785
Accumulated amortization:	(191,957)	(185,583)
Net intangible assets:	65,010	43,202
Trademarks
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	209,090	209,090
Accumulated amortization:	(176,730)	(171,715)
Net intangible assets:	32,360	37,375
Internally developed capitalized software
Acquired Finite Lived Intangible Assets [Line Items]
Gross intangible assets:	274,914	237,060
Accumulated amortization:	(146,034)	(118,303)
Net intangible assets:	$ 128,880	$ 118,757

GOODWILL AND INTANGIBLE ASSET_6

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Estimated Amortization Expense for Remainder Succeeding Years (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 83,804
2025	144,112
2026	108,685
2027	77,707
2028	69,711
Thereafter	465,147
Net intangible assets:	$ 949,166	$ 956,234

DEBT - Narrative (Details)

DEBT - Narrative (Details) - USD ($)			3 Months Ended	6 Months Ended
DEBT - Narrative (Details) - USD ($)	Jan. 26, 2024	Jun. 09, 2022	Mar. 31, 2024	Jun. 30, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Principal amount outstanding				$ 4,536,875,000
Loss on extinguishment of debt			$ 1,500,000	1,510,000	$ 0
Deferred financing fees and premium remain unamortized				32,600,000
Long-term Debt
Debt Instrument [Line Items]
Deferred financing fees and premium remain unamortized				28,100,000
Variable rate Tranche A Term Loans due 2027
Debt Instrument [Line Items]
Principal amount outstanding				0
Variable rate Tranche A Term Loans due 2027 \| Base Rate Loans \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)		0.50%
Variable rate Tranche A Term Loans due 2027 \| Base Rate Loans \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)		1%
Variable rate Tranche A Term Loans due 2027 \| Secured Overnight Financing Rate (SOFR) \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)		1.50%
Variable rate Tranche A Term Loans due 2027 \| Secured Overnight Financing Rate (SOFR) \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)		2%
Variable rate revolving loan commitments
Debt Instrument [Line Items]
Principal amount outstanding				336,875,000
Deferred financing fees and premium remain unamortized				4,500,000
Variable rate revolving loan commitments \| Prepaid and Other Assets
Debt Instrument [Line Items]
Deferred financing fees and premium remain unamortized				1,000,000
Variable rate revolving loan commitments \| Other Non-Current Assets
Debt Instrument [Line Items]
Deferred financing fees and premium remain unamortized				3,500,000
Senior Unsecured Notes
Debt Instrument [Line Items]
Principal amount outstanding				4,200,000,000
TLA Facility
Debt Instrument [Line Items]
Principal amount outstanding				$ 336,900,000
Line of Credit \| Revolving Credit Facility \| Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,250,000,000
Proceeds from debt	$ 336,900,000
Interest rate on the revolving loans (as percent)				6.94%
Line of Credit \| Revolving Credit Facility \| Credit Agreement \| Base Rate Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)	0.50%
Line of Credit \| Revolving Credit Facility \| Credit Agreement \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as percent)	1.50%

DEBT - Schedule of Senior Unsec

DEBT - Schedule of Senior Unsecured Notes (Details) - USD ($) $ in Thousands		6 Months Ended
	Jun. 09, 2022	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal Amount Outstanding		$ 4,536,875
Carrying Value		4,508,730	$ 4,507,728
Fair Value		4,083,745	4,124,310
Deferred financing fees and premium remain unamortized		$ 32,600
4.000% senior unsecured notes due 2029
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)		400%
Maturity Date		Nov. 15, 2029
Principal Amount Outstanding		$ 1,000,000
Carrying Value		994,182	993,637
Fair Value		$ 933,350	941,090
3.625% senior unsecured notes due 2030
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)		362.50%
Maturity Date		Sep. 01, 2030
Principal Amount Outstanding		$ 900,000
Carrying Value		895,918	895,587
Fair Value		$ 809,514	815,526
3.875% senior unsecured notes due 2031
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)		387.50%
Maturity Date		Feb. 15, 2031
Principal Amount Outstanding		$ 1,000,000
Carrying Value		992,708	992,161
Fair Value		$ 899,970	914,360
3.625% senior unsecured notes due 2031
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)		362.50%
Maturity Date		Nov. 01, 2031
Principal Amount Outstanding		$ 600,000
Carrying Value		595,181	594,852
Fair Value		$ 526,722	529,458
3.250% senior unsecured notes due 2033
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)		325%
Maturity Date		Aug. 15, 2033
Principal Amount Outstanding		$ 700,000
Carrying Value		693,866	693,532
Fair Value		$ 578,998	586,509
Variable rate Tranche A Term Loans due 2027
Debt Instrument [Line Items]
Maturity Date	Jan. 26, 2029	Feb. 16, 2027
Principal Amount Outstanding		$ 0
Carrying Value		0	337,959
Fair Value		$ 0	337,367
Variable rate revolving loan commitments
Debt Instrument [Line Items]
Maturity Date		Jan. 26, 2029
Principal Amount Outstanding		$ 336,875
Carrying Value		336,875	0
Fair Value		335,191	$ 0
Deferred financing fees and premium remain unamortized		4,500
Variable rate revolving loan commitments \| Prepaid and Other Assets
Debt Instrument [Line Items]
Deferred financing fees and premium remain unamortized		1,000
Variable rate revolving loan commitments \| Other Non-Current Assets
Debt Instrument [Line Items]
Deferred financing fees and premium remain unamortized		$ 3,500

DEBT - Schedule of Maturities o

DEBT - Schedule of Maturities of Long-Term Debt (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Debt Disclosure [Abstract]
Remainder of 2024	$ 0
2025	0
2026	0
2027	0
2028	0
Thereafter	4,536,875
Total debt	$ 4,536,875

DEBT - Schedule of Interest Pay

DEBT - Schedule of Interest Payments Due Attributable to Outstanding Indebtedness (Details)	6 Months Ended
	Jun. 30, 2024
4.000% senior unsecured notes due 2029
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)	400%
Interest payment frequency	Semi-Annual
First interest payment date	--05-15
3.625% senior unsecured notes due 2030
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)	362.50%
Interest payment frequency	Semi-Annual
First interest payment date	--03-01
3.875% senior unsecured notes due 2031
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)	387.50%
Interest payment frequency	Semi-Annual
First interest payment date	--06-01
3.625% senior unsecured notes due 2031
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)	362.50%
Interest payment frequency	Semi-Annual
First interest payment date	--05-01
3.250% senior unsecured notes due 2033
Debt Instrument [Line Items]
Debt instrument interest rate (as percent)	325%
Interest payment frequency	Semi-Annual
First interest payment date	--02-15
Variable rate revolving loan commitments
Debt Instrument [Line Items]
Interest payment frequency	Variable
First interest payment date	--02-26

LEASES - Lease, Cost (Details)

LEASES - Lease, Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
LEASES - Lease, Cost (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Operating lease expenses	$ 7,655	$ 7,178	$ 14,794	$ 14,292
Variable lease costs	550	930	1,619	1,821
Short-term lease costs	224	188	439	439
Sublease income	(918)	(1,276)	(1,746)	(2,551)
Total lease costs	$ 7,511	$ 7,020	$ 15,106	$ 14,001

LEASES - Schedule of Maturities

LEASES - Schedule of Maturities of Operating Lease Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Maturity of Lease Liabilities
Remainder of 2024	$ 14,657
2025	32,290
2026	30,121
2027	23,930
2028	23,176
Thereafter	52,778
Total lease payments	176,952
Less: Interest	(21,202)
Present value of lease liabilities	155,750
Other accrued liabilities	25,191
Long-term operating lease liabilities	$ 130,559	$ 120,134

LEASES - Schedule of Weighted-A

LEASES - Schedule of Weighted-Average Remaining Lease Term and Discount Rate Under Operating Leases (Details)	Jun. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Weighted-average remaining lease term (years)	6 years 5 months 26 days	7 years 14 days
Weighted-average discount rate	4%	3.66%

LEASES - Schedule of Other Info

LEASES - Schedule of Other Information Under Operating Lease (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Operating cash flows used for operating leases	$ 15,514	$ 14,906
Right of use assets obtained in exchange for new operating lease liabilities	$ 27,245	$ 7,225

SHAREHOLDERS' EQUITY (DEFICIT_2

SHAREHOLDERS' EQUITY (DEFICIT) - Narrative (Details) - USD ($)	Jun. 30, 2024	Jul. 28, 2022
2022 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Repurchase program authorizing the purchase of shares		$ 1,000,000,000
Stock repurchase program, remaining authorized repurchase amount	$ 604,200,000	1,539,100,000
2020 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount		$ 539,100,000

SHAREHOLDERS' EQUITY (DEFICIT_3

SHAREHOLDERS' EQUITY (DEFICIT) - Schedule of Company's Common Stock Repurchases Made on Open Market (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity, Class of Treasury Stock [Line Items]
Dollar Value of Shares Repurchased	$ 243,035	$ 0	$ 444,655	$ 0
Excise tax percentage					1%
Open Market Purchases of Common Stock
Equity, Class of Treasury Stock [Line Items]
Average Price Paid Per Share (in USD per Share)					$ 483.79	$ 468.31
Total Number of Shares Repurchased (in shares)					499	941
Dollar Value of Shares Repurchased					$ 241,518	$ 440,847

SHAREHOLDERS' EQUITY (DEFICIT_4

SHAREHOLDERS' EQUITY (DEFICIT) - Schedule of Dividends Declared Per Common Share and Total Amounts Declared, Distributed and Deferred (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity [Abstract]
Dividend declared per common share (in USD per share)	$ 1.60	$ 1.60	$ 1.38	$ 1.38	$ 3.20	$ 2.76
Cash dividends declared	$ 127,304	$ 129,444	$ 110,383	$ 111,986	$ 256,748	$ 222,369
Cash dividends distributed	126,958	131,378	110,147	112,189	258,336	222,336
Cash dividends (released)/deferred	$ 346	$ (1,934)	$ 236	$ (203)	$ (1,588)	$ 33

SHAREHOLDERS' EQUITY (DEFICIT_5

SHAREHOLDERS' EQUITY (DEFICIT) - Schedule of Activity Related to Shares of Common Stock Issued and Repurchased (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2024
Movement In Equity Shares [Roll Forward]
Beginning balance (in shares)	134,070,097	133,817,332	133,817,332
Beginning balance (in shares)	(54,846,048)	(54,726,120)	(54,726,120)
Beginning balance (in shares)	79,224,049	79,091,212	79,091,212
Ending balance (in shares)	134,075,817	134,070,097	134,075,817
Ending balance (in shares)	(55,326,132)	(54,846,048)	(55,326,132)
Ending balance (in shares)	78,749,685	79,224,049	78,749,685
Common Stock Issued
Movement In Equity Shares [Roll Forward]
Dividend payable/paid (in shares)		61
Common stock issued (in shares)	779	252,637
Shares issued to directors (in shares)	4,941	67
Treasury Stock
Movement In Equity Shares [Roll Forward]
Shares withheld for tax withholding (in shares)	(359)	(119,861)
Shares repurchased under stock repurchase programs (in shares)	(499,224)
Shares issued to directors (in shares)	(19,499)	67
Common Stock Outstanding
Movement In Equity Shares [Roll Forward]
Dividend payable/paid (in shares)		61
Common stock issued (in shares)	779	252,637
Shares withheld for tax withholding (in shares)	(359)	(119,861)
Shares repurchased under stock repurchase programs (in shares)	(499,224)
Shares issued to directors (in shares)	24,440

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
INCOME TAXES (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 73,236	$ 60,333	$ 113,175	$ 97,977
Effective tax rate (as percent)			17.80%	16.80%
Amounts effect on effective tax rate	16,000	$ 16,400	$ 16,000	$ 16,400
Amount of excess tax benefits recognized on share-based compensation vested			15,700	11,200
Effective income tax rate reconciliation, tax settlement, amount			300	$ 5,200
Decrease in unrecognized tax benefits is reasonably possible	22,100		22,100
Unrecognized tax benefits, period increase	$ 3,500		$ 2,100

SEGMENT INFORMATION - Narrative

SEGMENT INFORMATION - Narrative (Details)	6 Months Ended
SEGMENT INFORMATION - Narrative (Details)	Jun. 30, 2024 segment
Segment Reporting [Abstract]
Number of operating segments	5
Number of reportable segments	4

SEGMENT INFORMATION - Schedule

SEGMENT INFORMATION - Schedule of Operating Revenues by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 707,949	$ 621,157	$ 1,387,914	$ 1,213,375
Index
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	397,192	362,316	771,064	701,698
Analytics
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	165,995	149,881	329,961	296,951
ESG and Climate
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	79,855	71,219	157,739	138,277
All Other - Private Assets
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating revenues	$ 64,907	$ 37,741	$ 129,150	$ 76,449

SEGMENT INFORMATION - Schedul_2

SEGMENT INFORMATION - Schedule of Segment Profitability and Reconciliation to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 429,955		$ 377,306		$ 813,528	$ 722,035
Amortization of intangible assets	40,773		26,154		79,377	50,821
Depreciation and amortization of property, equipment and leasehold improvements	4,226		5,199		8,307	10,659
Acquisition-related integration and transaction costs	2,348		0		3,854	0
Operating income	382,608		345,953		721,990	660,555
Other expense (income), net	42,614		38,795		86,103	77,025
Provision for income taxes	73,236		60,333		113,175	97,977
Net income	266,758	$ 255,954	246,825	$ 238,728	522,712	485,553
Index
Segment Reporting Information [Line Items]
Adjusted EBITDA	306,990		277,070		584,750	530,752
Analytics
Segment Reporting Information [Line Items]
Adjusted EBITDA	81,672		65,149		153,884	125,929
ESG and Climate
Segment Reporting Information [Line Items]
Adjusted EBITDA	23,930		22,798		45,021	40,674
All Other - Private Assets
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 17,363		$ 12,289		$ 29,873	$ 24,680

SEGMENT INFORMATION - Schedul_3

SEGMENT INFORMATION - Schedule of Operating Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	$ 707,949	$ 621,157	$ 1,387,914	$ 1,213,375
Total Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	323,429	284,008	634,463	549,960
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	290,443	256,434	571,118	494,850
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	32,986	27,574	63,345	55,110
Total EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	273,523	239,543	538,500	469,522
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	116,245	99,692	229,538	191,352
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	157,278	139,851	308,962	278,170
Total Asia & Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	110,997	97,606	214,951	193,893
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	28,971	24,285	55,544	50,302
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	$ 82,026	$ 73,321	$ 159,407	$ 143,591

SEGMENT INFORMATION - Schedul_4

SEGMENT INFORMATION - Schedule of Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 321,226	$ 289,126
Total Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	251,348	215,823
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	241,727	204,238
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	9,621	11,585
Total EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	38,993	40,475
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	17,466	18,403
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	21,527	22,072
Total Asia & Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	30,885	32,828
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	985	1,321
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 29,900	$ 31,507

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - $ / shares		3 Months Ended				6 Months Ended
SUBSEQUENT EVENTS (Details) - $ / shares	Jul. 22, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Subsequent Event [Line Items]
Dividend declared per common share (in USD per share)		$ 1.60	$ 1.60	$ 1.38	$ 1.38	$ 3.20	$ 2.76
Subsequent Event
Subsequent Event [Line Items]
Dividend declared per common share (in USD per share)	$ 1.60