US stocks dropped to near record lows as losses in energy and small caps shares weighed on corporate deals and the better than expected results from Wal-Mart Stores Inc. Wal-Mart rose 4.4% after its earnings topped forecasts. Cisco Systems Inc. rose 2.6% and Viacom Inc. rose 4.2% as the results beat estimates. DreamWorks Animation SKG Inc. rose 15% after people briefed ...