Recently, the US stock market has experienced significant fluctuations. The Nasdaq Composite Index (NASDAQ) showed particularly pronounced declines, with its value falling over 2%. The Dow Jones Industrial Average (Dow Jones) also declined by 1.39%, while the S&P 500 Index fell by 1.3%. At the individual stock level, Moderna's stock price dropped over 20%, Arm's stock price decreased by over 15%, Lam Research and Qualcomm's stock prices fell over 9% and 5% respectively, Nvidia's stock price dropped over 5%, and Tesla and Intel's stock prices fell over 4% each. These figures indicate that the current US stock market is in a turbulent state, and investors need to proceed with caution.