US STOCKS SNAPSHOT-Wall St opens lower as trade truce rally fades, UnitedHealth falls

May 15 (Reuters) - Wall Street's main indexes opened lower on Thursday as euphoria from the U.S.-China tariff truce waned, while UnitedHealth's stock was pressured following a report that the DoJ was investigating the health insurer for fraud.

The Dow Jones Industrial Average .DJI fell 273.1 points, or 0.65%, at the open to 41777.98. The S&P 500 .SPX fell 22.8 points, or 0.39%, at the open to 5869.82​, while the Nasdaq Composite .IXIC dropped 115.6 points, or 0.60%, to 19031.243 at the opening bell.