Stock market news today: Nasdaq futures tumble as China curb risk rattles techs Yahoo FinanceGlobal chip stocks from Nvidia to ASML fall on geopolitics, Trump comments CNBCDow Jones Futures Fall; Chips Tumble On ASML Earnings, Tougher China Curbs, Trump Investor’s Business DailyStocks Sink With Tech Under Pressure; Pound Climbs: Markets Wrap BloombergS&P 500 Futures Drop in Premarket Trading; GitLab, VF Corp Lead Barron’s