Company: BXSL
Filing Date: 2025-11-10
Form Type: 10-Q
Source: 0001736035-25-000021
Chunk: 230

Company: Blackstone Secured Lending Fund
Filing Date: 2025-11-10
Form: 10-Q
Item: Part I, Item 1
Chunk 230
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 all borrowings outstanding was 4.97% and 5.00%, respectively. For the three and nine months ended September 30, 2024, the weighted average interest rate (including unused fees, amortization of debt issuance costs (including premiums and discounts), and the impact of the application of hedge accounting) on all borrowings outstanding was 5.45% and 5.26%, respectively.For the three and nine months ended September 30, 2025, the weighted average all-in cost of debt (including unused fees, amortization of debt issuance costs (including premiums and discounts), amortization of deferred financing costs, and the impact of the application of hedge accounting) was 5.04% and 5.08%, respectively. For the three and nine months ended September 30, 2024, the weighted average all-in cost of debt (including unused fees, amortization of debt issuance costs (including premiums and discounts), the impact of the application of hedge accounting, and amortization of deferred financing costs) was 5.54% and 5.37%, respectively.For the three and nine months ended September 30, 2025, the average principal debt outstanding was $7,345.8 million and $7,271.7 million, respectively. For the three and nine months ended September 30, 2024, the average principal debt outstanding was $6,299.6 million and $5,717.0 million, respectively.

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Table of ContentsBlackstone Secured Lending FundNotes to Condensed Consolidated Financial Statements(Unaudited)(in thousands, except share amounts, per share data, percentages and as otherwise noted)

The components of interest expense were as follows:Three Months Ended September 30,Nine Months Ended September 30,2025202420252024Borrowing interest expense$86,952 $83,385 $259,161 $219,061 Facility unused fees2,136 747 6,374 3,490 Amortization of deferred financing costs1,354 1,411 4,204 4,815 Amortization of original issue discount and debt issuance costs (including premiums and discounts)3,943 2,587 11,029 6,908 Gain (loss) from interest rate swaps accounted for as hedges and the related hedged items:Interest rate swaps(488)(11,154)(26,266)(13,169)Hedged