US Stocks Open Lower as Chip Stocks Fall, Powell in Focus Wall Street opened lower on Wednesday, pressured by a report the US could curb sales of artificial intelligence (AI) chips to China, while investors awaited Federal Reserve Chair Jerome Powell’s speech for clues on the interest rate outlook. The Dow Jones Industrial Average fell 45.36 points, or 0.13%, at the open to 33,881.38. The S&P 500 opened lower by 10.93 points, or 0.25%, at 4,367.48, while the Nasdaq Composite dropped 49.66 points, or 0.37%, to 13,506.02 at the opening bell. Why Chip Stocks Are Falling Chipmakers Nvidia and Advanced Micro Devices fell 3.5% and 3.2%, respectively, in premarket trading after the Wall Street Journal reported the Commerce Department could stop shipments of chips made by these companies to China as early as July. Semiconductor stocks including Intel, Marvell Technology and Qualcomm fell more than 1% each. The report said the US government is considering adding more than a doze...