Traders work on the floor of the New York Stock Exchange (NYSE) in New York, US, on Monday, May 4, 2026. Michael Nagle | Bloomberg | Getty Images U.S. stock futures fell early Friday after the Dow Jones Industrial Average reclaimed the 50,000 threshold, and the S&P 500 closed above 7,500 for the first time. Investors are also keeping an eye on the ongoing summit between the U.S. and China. Dow futures fell by 132 points, or 0.7%. S&P 500 futures dipped 1%, and Nasdaq 100 futures slid 1.4%. In after hours, Cerebras shares rose 6%, extending gains after the artificial intelligence chipmaker's public markets debut . SpaceX is planning to disclose its prospectus as soon as next week , after confidentially filing for an IPO in April, CNBC has learned. Wall Street is coming off yet another positive session, with both the S&P 500 and Nasdaq Composite closing at record highs. The S&P 500 gained 0.8%, while the Nasdaq climbed 0.9%. The 30-stock Dow closed up 370 points, or 0.8%.…