[The U.S. Nasdaq Index opened lower by 1.2% and AI hardware industry chain stocks fell sharply] The three major U.S. stock indexes collectively opened lower, with the Dow Jones Index falling 0.24%, the S&P 500 Index falling 0.71%, and the Nasdaq Composite Index falling 1.20%. Affected by calls from CEOs of many top U.S. AI companies to slow down technology development, stocks in the AI hardware industry chain fell sharply. NVIDIA's stock price fell 3.33%, TSMC's stock price fell 3.42%, Broadcom's stock price fell 3.76%, SK Hynix's stock price fell 7.29%, and U.S. Optical Technology's stock price fell 6.69%, AMD Semiconductor's stock price fell 5.21%, ASML's stock price fell 6.13%, Intel's stock price fell 7.02%, Lam Group's stock price fell 7.45%, ARM's stock price fell 9.55%, and SanDisk's stock price fell 6.03%.