Nine U.S. banks seized in largest one-day haul

According to FDIC data, Cal National was the fourth biggest bank failure this year in terms of assets, just edging out Corus Bank, seized Sept 11 with a flat $7 billion of assets.

A bank official who answered the main number at Cal National's headquarters said they could not talk at the time.

Banks are still cleaning up their balance sheets from the recent credit boom that fueled banks' appetite to extend loans, many with poor underwriting and triggers that caused borrowers' payments to spike to unaffordable levels.

More lenders are expected to go under this year as the industry tries to get a handle on commercial real estate loans that will continue to worsen, as more strip malls go vacant and residential developments stall.

Banks held about $1.7 trillion in commercial real estate loans at the end of September, according to Federal Reserve data, or about 15 percent of their total assets. But to the extent these loans weaken, small banks are likely to be hit the hardest because larger banks were better diversified.

Banks that analysts say could risk big losses include Salt Lake City's Zions Bancorp, Columbus, Georgia's Synovus Financial Corp and Dallas-based Comerica Inc.

Before FBOP, U.S. Bancorp bought Downey Savings of Newport Beach and PFF Bank & Trust of Pomona when those thrifts failed last November, the newspaper said. Just this month, U.S. Bancorp bought 20 Nevada branches from BB&T Corp, which had acquired them as part of its deal to buy Colonial BancGroup Inc, it added.

(Additional reporting by Mary Milliken; Editing by Bernard Orr and Dean Yates)