NEW YORK (Reuters) -– Bank of America Corp, the largest U.S. bank, posted a quarterly profit that topped Wall Street forecasts but warned of a fresh surge in soured loans to credit card, mortgage and business customers.

Soaring credit losses may add to pressure on Chief Executive Kenneth Lewis as the U.S. Congress and regulators ramp up scrutiny of the bank's ability to manage risk and its controversial purchase of Merrill Lynch & Co, and that tough economic conditions could hurt results into 2010.
“Growth in charge-offs and nonperforming assets still scares the daylights out of me,” said Paul Miller, an analyst at FBR Capital Markets in Arlington, Virginia.
Second-quarter net income applicable to common shareholders fell 25 percent to $2.42 billion, or 33 cents per share, from $3.22 billion, or 72 cents, a year earlier.
Before preferred stock dividends in both periods, profit fell 5 percent to $3.22 billion. Net revenue on a taxable equivalent basis rose 60 percent to $33.09 billion.
Analysts on average expected profit of 29 cents per share on revenue of $33.26 billion, according to Reuters Estimates.
Lewis on a conference call predicted that “profitability in the second half of the year will be much tougher than the first half” because of an expected absence of one-time gains. Such gains helped boosted first-half net income to $7.47 billion.
Second-quarter results included an unspecified tax benefit and $9.1 billion of pretax gains from selling a stake in China Construction Bank Corp and putting a processing unit into a joint venture with First Data Corp. The bank took a $760 million charge to bolster a U.S. deposit insurance fund.
Bank of America set aside $13.38 billion for bad loans for a second straight quarter, and net charge-offs totaled $8.7 billion, up 25 percent from the prior three-month period.
Total reserves increased $4.63 billion to $35.78 billion, and nonperforming assets surged 21 percent to $30.98 billion. “It was expected to be difficult in the quarter, and it is,” said Richard Bove, an analyst at Rochdale Securities in Lutz, Florida.
Credit cards were a big trouble spot. The bank said it is not collecting payments on 11.73 percent of its $169.8 billion card portfolio, up from 8.62 percent three months earlier.
“We have a really ugly economic backdrop,” Michael Holland, a money manager at Holland & Co in New York, said on Reuters Television. “Those numbers aren't going to go away soon.”
Still, Lewis said the bank expects to boost reserves more slowly, as consumer charge-offs perhaps peak around year end.
The bank announced results just before Citigroup Inc, whose difficulties are considered more severe, posted a quarterly loss excluding a big gain from a brokerage joint venture with Morgan Stanley.
Goldman Sachs Group Inc and JPMorgan Chase & Co posted better-than-expected results earlier this week. Like JPMorgan, Bank of America said it has no material exposure to struggling business lender CIT Group Inc.
In afternoon trading, Bank of America shares fell 29 cents, or 2.2 percent, to $12.88 on the New York Stock Exchange.
Many of Bank of America's problems relate to its takeover of Merrill, after less than 48 hours of negotiations.
Lewis considered scrapping the deal as Merrill's losses soared, but completed it after then-U.S. Treasury Secretary Henry Paulson threatened to oust management, fearing a cancellation would threaten the financial system.
According to The Wall Street Journal, regulators have placed Bank of America under special secret oversight to address problems with risk and liquidity management.
Shareholders in April stripped Lewis of his chairman role, and Bank of America has since installed several directors with banking or regulatory experience.