DeepSeek has shaken up the AI world, raising questions about its capabilities, and security risks. But the future of AI still relies on American silicon despite the hype.

Plus: How AI propelled Nvidia up the list and other insights from this year's survey of corporate reputations.

Nvidia is once again the most valuable U.S. company, outranking Apple for the first time since late November. A rise in the chip maker's stock meant it ended Tuesday with a market capitalization of $3.

Since the start of 2023, Nvidia 's (NASDAQ: NVDA) stock has gained an astronomical 906% as of the time of writing. It's also right around its all-time high right now, but these two facts may scare some investors off. The common thought is, "Nvidia has risen so much already; how can it increase more?"

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 shed 17% on Monday and erased $589 billion from its market cap, the worst single-day loss of market value ever, amid panic over DeepSeek.

DeepSeek AI, favored by investors over ChatGPT, uses rapid advancements with cheaper chips as U.S. tech restrictions fuel China’s AI innovation.

President Donald Trump has threatened to impose tariffs on Taiwan-made chips, which could hit Nvidia, one of TSMC's biggest customers.

Calif., disclosed several new stock trades involving Big Tech names like Nvidia, Apple, Alphabet and Amazon that occurred in the last month.

Chinese startup DeepSeek has debuted an AI app that challenges OpenAI's ChatGPT and other U.S. rivals, sending a shock through Wall Street.