Banks ‘Throw in Towel’ to Add Agency Mortgage Bonds

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The biggest banks are adding government-backed mortgage bonds at the fastest pace in 18 months, breaking with an unusual pattern in which they shunned the debt as their loan portfolios shrank during the economic slump, according to Barclays Capital.

Large U.S. commercial banks added $51.4 billion of so-called agency mortgage-backed securities in the two weeks ended July 21, according to the latest data released by the Federal Reserve. The holdings fell from $696.6 billion in the middle of 2009 to $687.2 billion on July 7 even as the lenders’ portfolios of Treasuries and agency corporate debt grew $104 billion.