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Debt securities available-for-sale | 12 Months Ended
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Dec. 31, 2024
Debt securities available-for-sale |
Schedule of Available-for-sale Securities [Line Items] |
Investments in debt and marketable equity securities | Note 5 – Debt securities available-for-sale The following tables present the amortized cost, gross unrealized gains and losses, fair value, weighted average yield and contractual maturities of debt securities available-for-sale at December 31, 2024 and December 31, 2023. At December 31, 2024 Gross Gross Weighted Amortized unrealized unrealized Fair average (In thousands) cost gains losses value yield U.S. Treasury securities Within 1 year $ 10,555,397 $ 1,282 $ 46,275 $ 10,510,404 3.33 % After 1 to 5 years 2,547,936 151 63,381 2,484,706 3.07 Total U.S. Treasury securities 13,103,333 1,433 109,656 12,995,110 3.28 Collateralized mortgage obligations - federal agencies After 1 to 5 years 10,538 - 345 10,193 1.53 After 5 to 10 years 15,334 - 904 14,430 2.24 After 10 years 104,168 132 8,639 95,661 2.76 Total collateralized mortgage obligations - federal agencies 130,040 132 9,888 120,284 2.60 Mortgage-backed securities - federal agencies Within 1 year 776 - 5 771 1.65 After 1 to 5 years 79,542 8 2,700 76,850 2.35 After 5 to 10 years 733,506 82 45,078 688,510 2.37 After 10 years 5,468,448 337 1,106,657 4,362,128 1.67 Total mortgage-backed securities - federal agencies 6,282,272 427 1,154,440 5,128,259 1.75 Other Within 1 year 500 - - 500 5.00 After 1 to 5 years 1,750 - - 1,750 5.50 Total other 2,250 - - 2,250 5.39 Total debt securities available-for-sale [1] $ 19,517,895 $ 1,992 $ 1,273,984 $ 18,245,903 2.78 % [1] Includes $ 13.9 billion pledged to secure government and trust deposits, assets sold under agreements to repurchase, credit facilities and loan servicing agreements that the secured parties are not permitted to sell or repledge the collateral, of which $ 12.9 billion serve as collateral for public funds. The Corporation had unpledged Available for Sale securities with a fair value of $ 4.3 billion that could be used to increase its borrowing facilities. At December 31, 2023 Gross Gross Weighted Amortized unrealized unrealized Fair average (In thousands) cost gains losses value yield U.S. Treasury securities Within 1 year $ 7,103,518 $ 526 $ 59,415 $ 7,044,629 3.51 % After 1 to 5 years 3,598,209 84 170,209 3,428,084 1.35 After 5 to 10 years 307,512 - 33,164 274,348 1.63 Total U.S. Treasury securities 11,009,239 610 262,788 10,747,061 2.75 Collateralized mortgage obligations - federal agencies After 1 to 5 years 17,899 - 838 17,061 1.55 After 5 to 10 years 20,503 2 1,321 19,184 2.28 After 10 years 108,280 29 9,868 98,441 2.54 Total collateralized mortgage obligations - federal agencies 146,682 31 12,027 134,686 2.38 Mortgage-backed securities - federal agencies Within 1 year 637 - 3 634 3.72 After 1 to 5 years 82,310 11 3,536 78,785 2.34 After 5 to 10 years 792,431 75 48,250 744,256 2.28 After 10 years 6,067,353 667 1,046,909 5,021,111 1.64 Total mortgage-backed securities - federal agencies 6,942,731 753 1,098,698 5,844,786 1.72 Other Within 1 year 1,011 - - 1,011 4.00 After 1 to 5 years 1,500 - - 1,500 8.50 Total other 2,511 - - 2,511 6.69 Total debt securities available-for-sale [1] $ 18,101,163 $ 1,394 $ 1,373,513 $ 16,729,044 2.35 % [1] Includes $ 12 billion pledged to secure government and trust deposits, assets sold under agreements to repurchase, credit facilities and loan servicing agreements that the secured parties are not permitted to sell or repledge the collateral, of which $ 11.1 billion serve as collateral for public funds. The Corporation had unpledged Available for Sale securities with a fair value of $ 4.6 billion that could be used to increase its borrowing facilities. The weighted average yield on debt securities available-for-sale is based on amortized cost; therefore, it does not give effect to changes in fair value. Securities not due on a single contractual maturity date, such as mortgage-backed securities and collateralized mortgage obligations, are classified in the period of final contractual maturity. The expected maturities of collateralized mortgage obligations, mortgage-backed securities and certain other securities may differ from their contractual maturities because they may be subject to prepayments or may be called by the issuer. The following table presents the aggregate amortized cost and fair value of debt securities available-for-sale at December 31, 2024 by contractual maturity. (In thousands) Amortized cost Fair value Within 1 year $ 10,556,673 $ 10,511,675 After 1 to 5 years 2,639,766 2,573,499 After 5 to 10 years 748,840 702,940 After 10 years 5,572,616 4,457,789 Total debt securities available-for-sale $ 19,517,895 $ 18,245,903 At December 31, 2024, the Corporation did not intend to sell or believed it was more likely than not that it would be required to sell debt securities classified as available-for-sale. There were no debt securities available-for-sale sold during the years ended December 31, 2024, December 31, 2023 and December 31, 2022. The following tables present the Corporation’s fair value and gross unrealized losses of debt securities available-for-sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2024 and 2023. At December 31, 2024 Less than 12 months 12 months or more Total Gross Gross Gross Fair unrealized Fair unrealized Fair unrealized (In thousands) value losses value losses value losses U.S. Treasury securities $ 2,309,894 $ 24,646 $ 3,638,092 $ 85,010 $ 5,947,986 $ 109,656 Collateralized mortgage obligations - federal agencies 4,878 27 102,160 9,861 107,038 9,888 Mortgage-backed securities -federal agencies 70,777 3,175 5,031,414 1,151,265 5,102,191 1,154,440 Total debt securities available-for-sale in an unrealized loss position $ 2,385,549 $ 27,848 $ 8,771,666 $ 1,246,136 $ 11,157,215 $ 1,273,984 At December 31, 2023 Less than 12 months 12 months or more Total Gross Gross Gross Fair unrealized Fair unrealized Fair unrealized (In thousands) value losses value losses value losses U.S. Treasury securities $ 244,925 $ 5,126 $ 6,550,941 $ 257,662 $ 6,795,866 $ 262,788 Collateralized mortgage obligations - federal agencies 5,234 35 124,930 11,992 130,164 12,027 Mortgage-backed securities - federal agencies 37,118 405 5,779,260 1,098,293 5,816,378 1,098,698 Total debt securities available-for-sale in an unrealized loss position $ 287,277 $ 5,566 $ 12,455,131 $ 1,367,947 $ 12,742,408 $ 1,373,513 As of December 31, 2024, the portfolio of available-for-sale debt securities reflects gross unrealized losses of $ 1.3 billion (December 31, 2023 - $ 1.4 billion), driven mainly by mortgage-backed securities, which have been impacted by a decline in fair value as a result of the rising interest rate environment. The portfolio of available-for-sale debt securities is comprised mainly of U.S Treasuries and obligations from the U.S. Government, its agencies or government sponsored entities, including Federal National Mortgage Association (“FNMA”), Federal Home Loan Mortgage Corporation (“FHLMC”) and Government National Mortgage Association (“GNMA”). These securities carry an explicit or implicit guarantee from the U.S. Government, are highly rated by major rating agencies, and have a long history of no credit losses. Accordingly, the Corporation applies a zero-credit loss assumption.

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