SAN FRANCISCO (AP) — Chipmaker Nvidia will release a quarterly report Wednesday that could provide a better sense of whether the stock market has been riding an overhyped artificial intelligence bubble or is being propelled by a technological boom that's still gathering momentum.

Nvidia become the first publicly traded company to surpass a market value of $4 trillion last month, and its stock price has gained another 13% since then to create an additional $500 billion in shareholder wealth.

The latest financial results are due out Wednesday afternoon. They have become a key AI barometer during the past two years because Nvidia makes most of the chips that power the technology in vast data centers at the center of the boom.

This summer's run-up has continued Nvidia's jaw-dropping rise fr

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