Dec 31 (Reuters) - U.S. stocks fell at the open on Tuesday, as a Wall Street rally fizzled out in the final days of the decade after growing trade optimism and a brightening global outlook put the S&P 500 on track for its best year since 2013.
The Dow Jones Industrial Average fell 47.50 points, or 0.17%, at the open to 28,414.64, shrugging off a tweet by President Donald Trump that a Phase 1 U.S.-China deal will be signed at the White House on Jan. 15.
The S&P 500 opened lower by 6.11 points, or 0.19%, at 3,215.18. The Nasdaq Composite dropped 27.26 points, or 0.30%, to 8,918.74 at the opening bell. (Reporting by Sagarika Jaisinghani in Bengaluru; Editing by Maju Samuel)
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