INVESTMENTS AND FAIR VALUE MEASUREMENTS | 5 INVESTMENTS AND FAIR VALUE MEASUREMENTS We invest surplus funds in excess of operational requirements in a diversified portfolio of marketable securities, with the objectives of delivering competitive returns, maintaining a high degree of liquidity, and seeking to avoid the permanent impairment of principal. A summary of our investments in marketable equity and debt securities as of October 31, 2024, is as follows: Investments - current were as follows (in thousands): October 31, 2024 April 30, 2024 Marketable equity securities $ 44,413 $ 50,496 U.S. treasury securities 34,396 42,352 Short-term investments $ 78,809 $ 92,848 Investments- noncurrent were as follows (in thousands): October 31, 2024 April 30, 2024 U.S. treasury securities $ 16,101 $ 19,747 Corporate bonds 21,246 26,798 Investments- noncurrent $ 37,347 $ 46,545 Marketable Securities Marketable securities as of October 31, 2024 April 30, 2024 October 31, 2024 Cost or Amortized Cost Unrealized Gains Unrealized Losses Fair Value Marketable equity securities Equity securities $ 45,339 $ 2,802 $ (3,728 ) $ 44,413 Marketable debt securities U.S. treasury securities 49,749 748 — 50,497 Corporate bonds 20,584 684 (22 ) 21,246 Total marketable debt securities 70,333 1,432 (22 ) 71,743 $ 115,672 $ 4,234 $ (3,750 ) $ 116,156 April 30, 2024 Cost or Amortized Cost Unrealized Gains Unrealized Losses Fair Value Marketable equity securities Equity securities $ 50,645 $ 5,656 $ (5,805 ) $ 50,496 Marketable debt securities U.S. treasury securities 61,306 825 (32 ) 62,099 Corporate bonds 25,695 1,151 (48 ) 26,798 Total marketable debt securities 87,001 1,976 (80 ) 88,897 $ 137,646 $ 7,632 $ (5,885 ) $ 139,393 The amortized costs and fair value of our marketable debt securities, by contractual maturity, as of October 31, 2024 (in thousands) are as follows: October 31, 2024 Amortized Cost Fair Value Less than 1 $ 33,842 $ 34,396 1 5 36,491 37,347 Total $ 70,333 $ 71,743 As of October 31, 2024 million , with an aggregated loss of $ 22,000 . There were no U.S.treasury with unrealized loss position at October 31. 2024. As of April 30, 2024, the fair value of available-for-sale debt securities in unrealized loss position for corporate bonds and U.S. treasury securities were $ 5.6 million and $ 25.2 million, respectively, with an aggregated loss of $ 0.1 million. For all available-for-sale debt securities that were in unrealized loss positions, we have determined that it is more likely than not we will hold the securities until maturity or a recovery of the cost basis. We had no credit-related impairment loss as of October 31, 2024 April 30, 2024 Derivative Financial Instruments Our derivative instruments consisted of call and put options sold at their fair value as of the balance sheet date. These derivative instruments are reported as Other current liabilities on our Condensed Consolidated Balance Sheets as of October 31, 2024 and April 30, 2024 (in thousands): October 31, 2024 Cost Unrealized Gains Fair Value Derivative instruments $ 7,145 $ (3,251 ) $ 3,894 $ 7,145 $ (3,251 ) $ 3,894 April 30, 2024 Cost Unrealized Gains Fair Value Derivative instruments $ 7,935 $ (2,495 ) $ 5,440 $ 7,935 $ (2,495 ) $ 5,440 A summary of realized and unrealized gains and losses from our equity securities and derivative instruments and realized gains and losses from our marketable debt securities are as follows (in thousands): One Month Ended Three Months Ended Six Months Ended July 31, 2024 October 31, 2024 June 30, 2023 October 31, 2024 June 30, 2023 Net unrealized gains (losses) recognized on marketable equity securities $ 2,839 $ (2,407 ) $ (1,255 ) $ (776 ) $ 759 Net realized gains recognized on marketable equity securities 704 834 4,561 3,941 6,230 Net unrealized gains (losses) recognized on derivative instruments 1,128 1,282 (91 ) 757 (194 ) Net realized gains recognized on derivative instruments 172 866 1,520 3,462 2,237 Net realized gains recognized on marketable debt securities 1,056 35 217 1,308 217 Total net gains recognized in interest and other income (loss), net $ 5,899 $ 610 $ 4,952 $ 8,692 $ 9,249 Fair Value Measurements Our financial instruments include cash and cash equivalents, receivables, accrued liabilities and accounts payable. The fair value of cash and cash equivalents, receivables, accrued liabilities and accounts payable approximates their carrying values because of the short-term nature of these instruments, which are all considered Level 1 Our financial instruments measured at fair value on a recurring basis consisted of U.S. treasury securities, equity securities, corporate bonds and derivatives. Equity securities are classified within Level 1 2 Financial instruments value 3 3 October 31, 2024 , and April 30, 2024 . Financial instrument of October 31, 2024 April 30, 2024 are classified based on the valuation technique in the table below (in thousands): October 31, 2024 Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1 Significant Other Observable Inputs (Level 2 Significant Unobservable Inputs (Level 3 Total Assets: U.S. treasury securities $ — $ 50,497 $ — $ 50,497 Equity securities 44,413 — — 44,413 Corporate bonds — 21,246 — 21,246 Total assets at fair value $ 44,413 $ 71,743 $ — $ 116,156 Liabilities Derivative instruments $ — $ 3,894 $ — $ 3,894 Total liabilities at fair value $ — $ 3,894 $ — $ 3,894 April 30, 2024 Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1 Significant Other Observable Inputs (Level 2 Significant Unobservable Inputs (Level 3 Total Assets: U.S. treasury securities $ — $ 62,099 $ — $ 62,099 Equity securities 50,496 — — 50,496 Corporate bonds 8,220 18,578 — 26,798 Total assets at fair value $ 58,716 $ 80,677 $ — $ 139,393 Liabilities Derivative instruments $ — $ 5,440 $ — $ 5,440 Total liabilities at fair value $ — $ 5,440 $ — $ 5,440 |