The three major U.S. stock indexes collectively opened lower, the Dow fell 0.17%, the Nasdaq fell 1.35%, and the S & P 500 fell 0.89%. Chip stocks fell generally, NVIDIA fell more than 4%, TSMC and Micron fell nearly 4%, and ASML and Broadcom fell more than 2%. The Biden administration released new regulations on Monday to impose quotas and restrictions on the export of AI chips to more than 100 countries and regions around the world.