Regulators shut down a big bank in California on Friday, along with two banks in Georgia and one each in Florida, Minnesota and Washington. That brought to 15 the number of bank failures so far in 2010 atop the 140 shuttered last year in the punishing economic climate.

With nearly half of the S&P 500 reporting, Q4 earnings are on track to surge 206% vs. a year earlier.

American International Group Inc. on Friday disclosed details of the toxic securities that helped trigger a massive taxpayer rescue of the giant insurer.

The economy’s faster-than-expected growth at the end of last year, fueled by companies boosting output to keep stockpiles up, is likely to weaken as consumers keep a lid on spending.

MONDAY, Feb. 1 WASHINGTON — Commerce Department releases personal income and spending for December, 8:30 a.m.; Commerce Department releases construction spending for December, 10 a.m.; President Barack Obama sends his 2011 budget proposal to Congress.

MONDAY, Feb. 1 WASHINGTON — Commerce Department releases personal income and spending for December, 8:30 a.m.; Commerce Department releases construction spending for December, 10 a.m.; President Barack Obama sends his 2011 budget proposal to Congress.

The following stocks were among those that moved substantially or traded heavily Friday on the New York Stock Exchange and the Nasdaq Stock Market:

Higher GDP and Bernanke approval allow for lower VIX implied volatility.

Shares of Ariba Inc. rose Friday after the company, which makes spending-management software, reported fiscal first-quarter results slightly ahead of analyst expectations and a Craig-Hallum Capital analyst upgraded the stock.

Frontier Communications Corp., a phone company that serves rural areas and small communities, on Friday named a former commissioner of the Federal Communications Commission as its chief legal officer.