Stock market today: Dow, S&P 500, Nasdaq futures slide amid upbeat bank earnings, Iran fears

US stock futures retreated on Wednesday as more big bank earnings rolled in, with investors on watch for fresh inflation data, a potential Supreme Court ruling on US tariffs, and signs of potential US military action on Iran. Contracts on the tech-heavy Nasdaq 100 (NQ=F) slid 0.6%, while those on the S&P 500 (ES=F) fell 0.4%. Meanwhile, Dow Jones Industrial Average futures (YM=F) moved down 0.3%, coming off a pullback in financial stocks that dragged Wall Street indexes off record highs. Worries rose ab ...