The US stock market is experiencing significant declines as major indexes, including the Dow, S&P 500, and Nasdaq, face pressure from falling tech stocks, particularly Nvidia. Investors are bracing for upcoming earnings reports from Nvidia and key economic data, including the September jobs report. Concerns over high-tech valuations and fading hopes for a Federal Reserve interest rate cut have further fueled this sell-off, leading to one of the worst days for the market in over a month. Additionally, the volatility has been compounded by a lack of supportive economic data, causing stocks and bonds to stabilize while fears of a potential correction loom larger.