Why are tech stocks, especially Nvidia, falling ahead of its earnings report and what role does AI-related market sentiment play?

Tech stocks are falling due to summer volatility driven by concerns that the AI technology frenzy inflated stock prices beyond sustainable levels and that surging demand for AI chips may not yield sufficient profits. Nvidia — described as 'Wall Street’s largest and most influential stock' due to its dominance in the AI boom — sank 2.6% and was 'the heaviest weight on the S&P 500', with its upcoming quarterly earnings report on Wednesday seen as a potential catalyst for broader AI-related stock movements.

What did the U.S. Treasury Department do to address rising long-term Treasury yields, and why are analysts skeptical about its effectiveness?

The U.S. Treasury Department announced a 'surprise move' to increase the size of planned buybacks of Treasurys — aimed at containing the rise in yields for 10- and 30-year bonds — but analysts warned the move may have 'only a limited effect' because the buybacks are 'small' and fail to resolve 'fundamental problems': 'too-high debt for the U.S. government and expensive oil prices because of the war with Iran'.

Wall Street Drifts Ahead of Volatile Week Amidst Fed Speech and Oil Price Fluctuations

Aug 25, 2026

US stocks drifted ahead of a critical week featuring Nvidia earnings and Fed policy signals, while oil prices dipped to $90.95 per barrel amid geopolitical tensions.

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