Carter���s, Heico, Martha Stewart, RF Micro: U.S. Equity Movers

replace Massey Energy Co. (MEE US) in the Standard & Poor���s 500 Index, according to a statement. American International Group Inc. (AIG US) fell 3.2 percent to $28.52 and dropped 4.5 percent earlier, the most intraday since March 15. Losses at the...