Short-Term Funding

The components of short-term funding (funding with original contractual maturities of one year or less) at December 31 were as follows.



	2016		2015
	($ in Thousands)
Federal funds purchased	$	208,150	$	47,870
Securities sold under agreements to repurchase	300,197		383,568
Federal funds purchased and securities sold under agreements to repurchase	508,347		431,438
FHLB advances	482,000		335,000
Commercial paper	101,688		67,978
Other short-term funding	583,688		402,978
Total short-term funding	$	1,092,035	$	834,416

Securities sold under agreements to repurchase ("repurchase agreements")

The Corporation enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Corporation may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Corporation to repurchase the assets. The obligation to repurchase the securities is reflected as a liability on the Corporation’s consolidated balance sheets, while the securities underlying the repurchase agreements remain in the respective investment securities asset accounts (i.e., there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities). See Note 15 for additional disclosures on balance sheet offsetting.

The Corporation utilizes securities sold under agreements to repurchase to facilitate the needs of its customers. As of December 31, 2016, the Corporation pledged agency mortgage-related securities with a fair value of $381 million as collateral for the repurchase agreements. Securities pledged as collateral under repurchase agreements are maintained with the Corporation's safekeeping agents and are monitored on a daily basis due to the market risk of fair value changes in the underlying securities. The Corporation generally pledges excess securities to ensure there is sufficient collateral to satisfy short-term fluctuations in both the repurchase agreement balances and the fair value of the underlying securities.

The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets are presented in the following table.



	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 days		30-90 days		Greater than 90 days		Total
	($ in Thousands)
December 31, 2016
Repurchase agreements
Agency mortgage-related securities	$	300,197	$	—	$	—	$	—	$	300,197
Total	$	300,197	$	—	$	—	$	—	$	300,197
December 31, 2015
Repurchase agreements
Agency mortgage-related securities	$	383,568	$	—	$	—	$	—	$	383,568
Total	$	383,568	$	—	$	—	$	—	$	383,568