
Nvidia stock down today as the AI giant faces its sharpest crash of 2025. Shares of $NVDA plunged over 16% since Monday, wiping out nearly $800 billion in market value in four days. The stock closed at $181.62, down 3.43%, with heavy trading volume above 143 million shares. Investors are pulling back after months of record gains, spooked by U.S.–China export curbs, AI chip delays, and stretched valuations. Nvidias $5 trillion dream now feels fragile as the AI boom shows first cracks in Wall Streets most-watched stock.