U.S. stock index futures declined during overnight trading on Monday, after the Dow and S&P closed at record highs amid optimism over the economic reopening.Futures contracts tied to the Dow slid 57 points. S&P 500 futures declined 0.15%, while Nasdaq 100 futures were 0.11% lower.During regular trading hours Monday the Dow jumped 174 points, notching its 21st record intraday high of the year, and 14th record closing high of 2021. It was also the 30-stock average’s seventh straight positive session — the longest daily winning streak since August.The S&P 500, meanwhile, gained 0.64% for its fifth straight positive session. The benchmark index hit …
