US stocks stalled before the bell on Thursday as concerns about Big Tech continued to dog markets and a Supreme Court hearing fed hopes for a shift in President Trump's aggressive tariff push. Futures on the Dow Jones Industrial Average (YM=F) and the S&P 500 (ES=F) wobbled around the flat line. Contracts on the tech-heavy Nasdaq 100 (NQ=F) were also little changed on the heels of Wednesday's comeback for major US gauges, fueled by upbeat jobs data and a revival in tech stocks. A rebound in AI-linked na ...