U.S. stocks extended their declines for a fourth consecutive session Thursday as August producer price index (PPI) inflation exceeded expectations and both major crude benchmarks rose above $100 per barrel. The Dow Jones Industrial Average fell 0.6% to 52,064.10, while the S&P 500 declined 0.58% to 7,591.70 and the Nasdaq Composite dropped 0.65% to 26,081.73. Semiconductor shares led the selloff, with the Philadelphia Semiconductor Index plunging 2.66%. The 10-year Treasury yield climbed above 4.95%, its highest level since October 2023, as the seven-month U.S.-Iran war and sustained oil prices reinforced inflation concerns. CME Group’s FedWatch tool showed a 70% probability of at least a quarter-point Federal Reserve rate increase next week, compared with roughly 64% previously. Nvidia, Micron Technology, Intel, SK Hynix and TSMC’s ADR (U.S.-traded depositary receipt) all declined, while Apple rose 3.56% after unveiling a new $1,999 iPhone. Oracle reported adjusted earnings per share of $1.92 and revenue of $19.35 billion after the close, with cloud revenue reaching $11.61 billion after growing 62% year over year. Analysts said elevated oil prices and rising bond yields remain key uncertainties, with tighter monetary policy, capital rotation into bonds and volatility expected to pressure equities near term.