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U.S. stock index futures slipped on Sunday night following the Dow Jones Industrial Average’s best two-week stretch since the summer of 1938.

Dow Jones Industrial Average futures are down about 200 points, or 0.8%, while S&P 500 and Nasdaq 100 futures implied losses of 0.7% and 0.6%, respectively. Each index is up at least 15% in the past two weeks.