Why is the US stock market sinking deep in red today? Dow Jones, S&P 500, Nasdaq crash as hot inflation data and AI fears shake Wall Street

US stock market crash today: The Dow Jones Industrial Average crashed 777 points on Friday, February 27, 2026. The S&P 500 dropped 65 points and the Nasdaq fell 257 points. January's Producer Price Index shocked markets, jumping 0.5% — well above the 0.3% forecast. Core inflation hit 0.8%, double expectations. Jack Dorsey's Block announced it was cutting half its workforce due to AI. OpenAI raised $110 billion, valuing itself at $730 billion. Nvidia and Amazon shares fell despite investing. The stock market selloff is real, deep, and driven by two fears: inflation staying high and AI destroying millions of jobs fast.