U.S. stock markets trade mixed across the week as investors weigh oil price moves, inflation expectations, and shifting views on AI-related earnings and spending. After recent record highs, the S&P 500 and Nasdaq swing between gains and pullbacks, with some sessions ending lower when oil prices rise and Treasury yields increase on inflation worries. Multiple reports cite energy and Middle East developments involving the U.S. and Iran, including ceasefire-talk expectations and continued sensitivity to headlines, as well as crude trading above $110 per barrel at times. Separately, markets also react to interest-rate expectations, with investors pricing more hawkish outcomes for the Federal Reserve if inflation data stay hot.

At the stock level, AI and semiconductor names drive much of the movement. Nvidia’s quarterly results and outlook are discussed in connection with both rebounds and profit-taking, while broader chip and tech sectors rally on periods of renewed AI optimism. Other reports highlight semiconductor selling or caution over debt-funded AI capacity spending, alongside later bargain-hunting and rebounds when geopolitical risks appear less immediate. Overall, the reports describe a market that remains highly responsive to macro data and geopolitical signals, with tech and chips serving as the main swing factor.