Nvidia outlook sparks AI rally; 5 things to know before Wall Street opens

US stock futures rose Thursday after Nvidia's strong outlook reignited the AI rally, lifting Nasdaq 100 futures about 1%. Nvidia climbed over 7% premarket after forecasting roughly 70% revenue growth for fiscal 2028, exceeding Wall Street expectations. S&P 500 futures gained about 0.5%, while Dow futures were little changed. The rally extended beyond chips as Salesforce and CrowdStrike presented stronger outlooks, easing concerns that AI would disrupt established software firms. Nvidia reported $96.2 billion in second-quarter revenue, up 106% year-over-year. Investors now face a key macro test Friday when Fed Chair Kevin Warsh speaks at Jackson Hole. Recent PCE data showed inflation at 3.7%, well above the Fed's 2% target, keeping rate hike risks alive. Weekly jobless claims release Thursday.