Company: MTB-PJ
Filing Date: 2025-10-27
Form Type: 10-Q
Source: 0000036270-25-000024
Chunk: 41

Company: M&T BANK CORP
Filing Date: 2025-10-27
Form: 10-Q
Item: Part I, Item 1
Chunk 41
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)Investment securities available for sale 381 — The net effect of interest rate swap agreements was to decrease net interest income by $33 million and $139 million during the three-month and nine-month periods ended September 30, 2025, respectively, and to decrease net interest income by $115 million and $328 million during the three-month and nine-month periods ended September 30, 2024, respectively. The amount of interest income recognized in the Company's Consolidated Statement of Income associated with derivatives designated as cash flow hedges was a decrease of $22 million and $102 million for the three months ended September 30, 2025 and 2024, respectively, and a decrease of $108 million and $288 million for the nine-month periods ended September 30, 2025 and 2024, respectively. As of September 30, 2025, the unrealized gain recognized in other comprehensive income related to cash flow hedges was $91 million, of which gains of $6 million, $56 million and $29 million relate to interest rate swap agreements maturing in 2026, 2027 and 2028, respectively.The Company predominantly clears non-customer derivative transactions through a clearinghouse, rather than directly with counterparties. The transactions cleared through a clearinghouse require initial margin collateral and variation margin payments depending on the contracts being in a net asset or liability position. The amount of initial margin collateral posted by the Company was $237 million and $257 million at September 30, 2025 and December 31, 2024, respectively. The fair value asset and liability amounts of derivative contracts have been reduced by variation margin payments treated as settlements as described herein. Variation margin on derivative contracts not treated as settlements continues to represent collateral posted or received by the Company.The Company does not offset derivative asset and liability positions in its consolidated financial statements. The Company’s exposure to credit risk by entering into derivative contracts is oftentimes mitigated through master netting agreements and collateral posting or settlement requirements. Master netting agreements covering interest rate and foreign exchange contracts with the same party include a right to set-off that becomes enforceable in the event of default, early termination or under other specific conditions. The aggregate fair value of derivative financial instruments in a liability position, which are subject to enforceable master netting arrangements, and the related collateral posted, was not material at each of September 30, 2025 and December 31, 2024. The aggregate fair value 

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