July 2 (Reuters) - U.S. stocks opened flat on Tuesday, following a record-setting rally in the previous session, as optimism over U.S.-China trade talks waned after Washington threatened tariffs on $4 billion worth of additional European goods.
The Dow Jones Industrial Average rose 2.10 points, or 0.01%, at the open to 26,719.53.
The S&P 500 opened higher by 0.33 points, or 0.01%, at 2,964.66. The Nasdaq Composite dropped 4.51 points, or 0.06%, to 8,086.65 at the opening bell. (Reporting by Amy Caren Daniel in Bengaluru; Editing by Sriraj Kalluvila)