Ally Financial Inc. (GMA.XX), which is largely exiting the mortgage business through the bankruptcy of its Residential Capital subsidiary, saw an increase in demands by Fannie Mae (FNMA) in the second quarter to buy back defective loans, according to a regulatory filing.

Warren Buffett's Berkshire Hathaway Inc. (BRKA, BRKB) said second-quarter profit fell 9% to $3.11 billion amid declining results in its derivative portfolio and a failure to repeat a big investment gain it chalked up a year ago.

Warren Buffett's Berkshire Hathaway Inc. (BRKA, BRKB) said second-quarter profit fell 9% to $3.11 billion amid declining results in its derivative portfolio and a failure to repeat a big investment gain it chalked up a year ago.

Knight Capital Group Inc.'s (KCG) main business of making markets for retail stock trades is hugely prized on Wall Street, and now potentially up for grabs for a handful of competitors after a trading snafu steered big clients away from Knight.

Washington--The U.S. Treasury Department on Friday disclosed the pricing of its public sale of American International Group (AIG) stock, and said it would sell more shares than it had initially planned.

Standard & Poor's slashed the ratings of 15 financial institutions on Friday, noting worries about Italy's shrinking economy.

Brazilian state-run energy giant Petroleo Brasileiro (PBR, PETR4.BR), or Petrobras, said late Friday it registered a net loss in the second quarter as earnings were dragged down by the impact of a weaker real and heavy fuel imports.

Warren Buffett's Berkshire Hathaway posted a smaller second-quarter profit as losses on derivatives weighed on the company's bottom line.

Warren Buffett's Berkshire Hathaway Inc. late Friday reported its second-quarter operating earnings rose to $3.72 billion, or $2,252 per Class A share, from $3.42 billion, or $1,640 per Class A share, a year ago.

The Federal Trade Commission is looking into Third Point's investments in Yahoo Inc , according to a Friday post on the AllThingsD site.