U.S. stock futures fell Tuesday due to rising oil prices, triggered by fights in the Middle East, causing market pressure. The rise started fears of higher interest rates prior to next week’s inflation data. The S&P 500, Nasdaq, and Dow all opened down, hinting at a cautious tone. AI-related stocks sank after another slide Monday, adding sector weakness. Chip companies plummeted the most, affecting tech indices. Investors now foresee the Federal Reserve to push rates up soon, boosting Treasury yields, highlighting investor anxiety.