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 June 30, 2020, 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 “2024 Notes”. On February 19, 2019, the underwriters exercised their option to purchase an additional $9.0 million in aggregate principal of the 2024 Notes. The total net proceeds to us from the 2024 Notes, including the exercise of the underwriters’ option, after deducting underwriting discounts of approximately $2.1 million and offering expenses of $0.4 million, were approximately $66.5 million.
The 2024 Notes will mature on February 15, 2024 and bear interest at a rate of 6.000%. The 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 2024 Notes is payable quarterly on February 15, May 15, August 15 and November 15 of each year, beginning May 15, 2019. The 2024 Notes are listed on the NASDAQ Global Select Market under the trading symbol “FDUSZ.” As of June 30, 2020, the outstanding principal balance of the 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 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 June 30, 2020, 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 June 30, 2020, the weighted average stated interest rates for our SBA debentures, Public Notes, and the Credit Facility were 3.333%, 5.749%, and 3.315% respectively. As of June 30, 2020, we had $57.0 million of unutilized commitment under our Credit Facility, and we were subject to a 0.500% fee on such amount. As of June 30, 2020, the weighted average stated interest rate on total debt outstanding was 4.484%.
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 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 at least a majority of the votes cast, when a quorum is present, approve a proposal to do so. If we receive stockholder approval, we would be allowed to increase our leverage capacity on the first day after such approval. Alternatively, the legislation allows the majority of the Independent Directors to approve an increase in our leverage capacity, and such approval would become effective after the one-year anniversary of such approval.
On April 29, 2019, the Board, including a majority of the Independent Directors, approved a minimum asset coverage ratio of 150% under Sections 18(a)(1) and 18(a)(2) of the 1940 Act. As a result, we became subject to the 150% asset coverage ratio effective as of April 29, 2020. At present time, we do not intend to seek stockholder approval to reduce our asset coverage requirement. As of June 30, 2020, the aggregate amount outstanding of the senior securities issued by the Company was $225.3 million, for which our asset coverage was 267.0%. The SBA-guaranteed debentures are not subject to the asset coverage requirements of the 1940 Act as a result of exemptive relief granted to us by the SEC effective March 27, 2012. The asset coverage ratio for a class of senior securities representing indebtedness is calculated as our consolidated total assets, less all liabilities and indebtedness not represented by senior securities, divided by total senior securities representing indebtedness.
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