The Federal Reserve maintains interest rates unchanged and slows down the pace of balance sheet tightening starting from June; The US stock market fluctuated, with the Nasdaq down 0.33%, the S&P down 0.34%, and the Dow up 0.23%; The chip and semiconductor sectors fell, with AMD falling more than 14%, AMD falling nearly 9%, and Nvidia falling more than 3%; Most popular Chinese concept stocks rose, with NIO rising over 11%.