
	March 31, 2025						December 31, 2024
Type of Commitment	Expire within one year		Expire after one year		Total		Total
Standby letters of credit outstanding1	$	233,345	$	329,835	$	563,180	$	531,390
Commitments for standby bond purchases	—		383,790		383,790		215,825
Unused lines of credit - advances2	1,320,239		—		1,320,239		1,349,550
Commitments to fund additional advances3	58,046		—		58,046		4,087
Commitments to purchase mortgage loans, net4	141,644		—		141,644		107,682
Unsettled CO bonds, at par	276,215		—		276,215		620,000

1 There were no unconditional commitments to issue standby letters of credit at March 31, 2025. The amount at December 31, 2024 excludes unconditional commitments to issue standby letters of credit of $273.

Pledged Collateral. Cash pledged as collateral to counterparties and clearing agents at March 31, 2025 and December 31, 2024 totaled $940,637 and $1,028,019, respectively.

Standby Bond Purchase Agreements. We have entered into multiple agreements with a state housing authority within our district whereby we could be required under the terms of the agreements to purchase and hold the state housing authority's bonds until its designated marketing agent can find a suitable investor or the state housing authority repurchases the bond according to a schedule established by the standby agreements. At March 31, 2025, the agreements outstanding expire no later than 2030, although some may be renewable at our option. We were not required to purchase any bonds under these agreements as of March 31, 2025.

Legal Proceedings. We are subject to legal proceedings arising in the normal course of business. We record an accrual for a loss contingency when it is probable that a loss for which we could be liable has been incurred and the amount can be reasonably estimated. After consultation with legal counsel, management is not aware of any such proceedings where the ultimate liability, if any, could have a material effect on our financial condition, results of operations or cash flows.