Wall Street tumbles as hot inflation data feeds worries about Fed rate hikes

Hotter-than-expected inflation data sent Wall Street tumbling on Wednesday, with worries about more interest rate hikes from the Federal Reserve pummeling shares of Oracle, CoreWeave and other AI stocks sensitive to higher borrowing costs. Increased bets that the Fed will have to further hike rates to tame inflation dealt a sharp blow to some of the market's biggest gainers of 2026. Oracle lost 7.3 percent, while AI-infrastructure firms CoreWeave and Nebius tumbled 15 percent and 10 percent, respectively. Dell dropped 12 percent and Hewlett Packard Enterprise lost 7.6 percent after Barclays downgraded the AI server makers to "equal-weight" from "overweight." The Philadelphia SE Semiconductor index dropped almost 4 percent, down for a sixth straight session and on track for its longest losing streak since May 2025. US consumer prices accelerated in September as the cost of gasoline surged and price pressures broadened beyond energy, data from the Labor Department's Bureau of Labor Statistics showed. Interest rate traders are pricing in a 37 percent chance that the Fed will raise rates at i