We have made customary representations and warranties and we are required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities. These covenants are subject to important limitations and exceptions that are described in the documents governing the Credit Facility. As of December 31, 2019, we were in compliance with all covenants of the Credit Facility and there were $25.0 million of borrowings outstanding under the Credit Facility.
Public Notes
On February 2, 2018, we closed the public offering of approximately $43.5 million in aggregate principal amount of our 5.875% notes due 2023, or the “2023 Notes.” On February 22, 2018, the underwriters exercised their option to purchase an additional $6.5 million in aggregate principal of the 2023 Notes. The total net proceeds to us from the 2023 Notes, including the exercise of the underwriters’ option, after deducting underwriting discounts of approximately $1.5 million and estimated offering expenses of $0.4 million, were approximately $48.1 million.
The 2023 Notes will mature on February 1, 2023 and bear interest at a rate of 5.875%. The 2023 Notes may be redeemed in whole or in part at any time or from time to time at our option on or after February 1, 2020. Interest on the 2023 Notes is payable quarterly on February 1, May 1, August 1 and November 1 of each year. The 2023 Notes are listed on the NASDAQ Global Select Market under the trading symbol “FDUSL.” As of December 31, 2019, the outstanding principal balance of the 2023 Notes was $50.0 million.
On February 8, 2019, we closed the public offering of approximately $60.0 million in aggregate principal amount of our 6.000% notes due 2024, or the “February 2024 Notes.” On February 19, 2019, the underwriters exercised their option to purchase an additional $9.0 million in aggregate principal of the February 2024 Notes. The total net proceeds to us from the February 2024 Notes, including the exercise of the underwriters’ option, after deducting underwriting discounts of approximately $2.1 million and estimated offering expenses of $0.4 million, were approximately $66.5 million.
The February 2024 Notes will mature on February 15, 2024 and bear interest at a rate of 6.000%. The February 2024 Notes may be redeemed in whole or in part at any time or from time to time at our option on or after February 15, 2021. Interest on the February 2024 Notes is payable quarterly on February 15, May 15, August 15 and November 15 of each year, beginning May 15, 2019. The February 2024 Notes are listed on the NASDAQ Global Select Market under the trading symbol “FDUSZ.” As of December 31, 2019, the outstanding principal balance of the February 2024 Notes was $69.0 million.
On October 16, 2019, we closed the public offering of approximately $55.0 million in aggregate principal amount of our 5.375% notes due 2024, or the “November 2024 Notes” (and collectively with the 2023 Notes and the February 2024 Notes, the “Public Notes”). On October 23, 2019, the underwriters exercised their option to purchase an additional $8.3 million in aggregate principal of the November 2024 Notes. The total net proceeds to us from the November 2024 Notes, including the exercise of the underwriters’ option, after deducting underwriting discounts of approximately $1.9 million and estimated offering expenses of $0.3 million, were approximately $61.1 million.
The November 2024 Notes will mature on November 1, 2024 and bear interest at a rate of 5.375%. The November 2024 Notes may be redeemed in whole or in part at any time or from time to time at our option on or after November 1, 2021. Interest on the November 2024 Notes is payable quarterly on February 1, May 1, August 1 and November 1 of each year, beginning February 1, 2020. The November 2024 Notes are listed on the NASDAQ Global Select Market under the trading symbol “FDUSG.” As of December 31, 2019, the outstanding principal balance of the November 2024 Notes was approximately $63.3 million.
The Public Notes are unsecured obligations and rank pari passu with our future unsecured indebtedness; effectively subordinated to all of our existing and future secured indebtedness; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, financing vehicles, or similar facilities we may form in the future, with respect to claims on the assets of any such subsidiaries, financing vehicles, or similar facilities.
As of December 31, 2019, the weighted average stated interest rates for our SBA debentures, the Public Notes and the Credit Facility were 3.392%, 5.749% and 4.788%, respectively. As of December 31, 2019, we had $75.0 million of unutilized commitment under our Credit Facility. As of December 31, 2019, the weighted average stated interest rate on total debt outstanding was 4.665%.
As a BDC, we are generally required to meet an asset coverage ratio of at least 200.0% (or 150.0% on and after April 29, 2020) (defined as the ratio which the value of our consolidated total assets, less all consolidated liabilities and indebtedness not represented by senior securities, bears to the aggregate amount of senior securities representing indebtedness), which includes borrowings and any preferred stock we may issue in the future. This requirement limits the amount that we may borrow. We have received exemptive relief from the U.S. Securities and Exchange Commission (“SEC”) to allow us to exclude any indebtedness guaranteed by the SBA and issued by the Funds from the 200.0% asset coverage requirements, which, in turn, will enable us to fund more investments with debt capital. Recent legislation, however, modifies the required minimum asset coverage ratio from 200.0% to 150.0%, if certain requirements are met. Under the legislation, we are allowed to increase our leverage capacity if stockholders representing
63