James Dimon, the chairman and chief executive of JPMorgan Chase & Co., took full advantage of his fourth-quarter earnings call Thursday to make the case his company has not simply stashed away the $25 billion it received under the Treasury Department's Troubled Asset Relief Program.

That money, he said, helped finance the $150 billion of credit JPMorgan Chase extended in the fourth quarter. During a call with analysts, Mr. Dimon also highlighted loan commitments, including $50 billion of interbank lending, the purchase of a $1.4 billion Illinois municipal bond issue others would not touch, and a $10 billion increase in commercial lending, along with two syndicated finance deals in the food and beverage industry.

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