Market Update: Bank of America (NYSE: BAC), Apple (NASDAQ: AAPL), Pfizer (NYSE: PFE), Caterpillar (NYSE: CAT)
October 20, 2009 at 10:35 AM EDT
Bank of America Corp. (NYSE: BAC) signed off on its government-assisted purchase of Merrill Lynch & Co. after U.S. regulators said the deal may boost the…