美股大涨，道指涨超800点

Market Overview - On August 22, Federal Reserve Chairman Jerome Powell hinted at a potential interest rate cut in September, leading to a significant rise in U.S. stock markets, with all three major indices gaining over 1% and the Dow Jones Industrial Average reaching a record high [1][2][13] - The Dow Jones Industrial Average surged by 846.24 points, or 1.89%, while the Nasdaq and S&P 500 indices rose by 1.88% and 1.52%, respectively [2] Technology Sector - The U.S. technology sector saw a notable increase, with the "Big Seven" tech stocks rising by 2.04%, and Tesla's stock climbing over 6% [4] - Semiconductor stocks also performed well, with the Philadelphia Semiconductor Index increasing by 2.7% and companies like ON Semiconductor and Intel seeing gains of over 5% [4] Chinese Stocks - Chinese stocks listed in the U.S. experienced a broad increase, with the Nasdaq China Golden Dragon Index rising by 2.73% [5][6] - Notable performers included Miniso, which surged over 20% following a strategic financing round, and NIO, which rose over 14% after launching a new SUV model [7] Commodities - The market reacted to Powell's comments with a decline in the U.S. dollar index, which fell below 98, while crude oil and gold prices increased [8] - As of the close, WTI crude oil futures rose by 0.39%, and gold prices increased by 0.98%, reflecting a positive sentiment in the commodities market [8][11]