All three major U.S. stock indexes weakened in early Tuesday trading, with the Dow Jones Industrial Average falling as much as 470 points, or approximately 0.9%, while the S&P 500 and Nasdaq Composite each declined about 0.2%. Chip stocks moved against the broader market: Qualcomm surged 7.5% after announcing a data center infrastructure partnership with Amazon Web Services (AWS), and TSMC ADRs gained 2.5%. Qualcomm said it would jointly develop multiple generations of custom chips to support AWS's artificial intelligence infrastructure, a major victory as it seeks to challenge Nvidia in the AI market. Intel rose more than 5% amid plans to raise PC CPU prices by 10%, while Oracle gained more than 5% to its highest level since late June. Oil prices climbed for a third straight trading day after weekend attacks between the United States and Iran, with Brent crude up 2.3% at $99.22 a barrel and West Texas Intermediate 3.3% higher at $94.54. Rising energy prices and Treasury yields have increased concern about inflation ahead of U.S. inflation data and the Federal Reserve's meeting next week. CME FedWatch Tool pricing indicated a 60% probability of a quarter-point rate increase. Canada's retaliatory tariffs on approximately $20 billion of U.S. goods also took effect, while individual stocks saw gains for Bloom Energy and Quantinuum and a more than 12% drop for Novartis.