The superstar run for Nvidia’s stock the last few years has been astonishing. So was its tumble Monday, which caused $595 billion in wealth to vanish.

Nvidia stock tumbled when DeepSeek said it trained an impressive AI model at a fraction of what U.S. companies have paid, but many Wall Street analysts remain bullish. President Trump's plan to reduce the corporate tax rate to 15% would let Nvidia repurchase more stock,