On this episode of Stock Movers:

- Nvidia (NVDA)'s shares shares fizzled on Thursday after investors shrugged off a stronger-than-expected revenue forecast and assurances that the AI economy isn’t in a bubble. After initially climbing more than 5%, the stock fell as much as 2.8% to $181.25 in New York. The broader market also declined, weighed down by AI fears and concerns over whether the Federal Reserve will cut rates in December.

- Walmart (WMT) raised its full-year sales and profit outlook, a sign the world’s biggest retailer is winning over price-sensitive shoppers while absorbing rising costs. The company now sees net sales rising 4.8% to 5.1%, higher than its previous projection in August. It marks a second increase in forecast during the fiscal year. 

- Oracle (ORCL) the once stodgy database giant that’s borrowed tens of billions and tethered its fortunes to the artificial intelligence boom, is quickly emerging as the credit market’s barometer for AI risk. Traders have piled into the company’s credit-default swaps in recent months as Oracle’s massive AI-related spending spree, its central role in a web of interrelated deals, and its weaker credit grades compared with players such as Microsoft Corp. or Alphabet Inc. have made the contracts the market’s preferred way to hedge — and bet against — the AI boom. Shares of Oracle fell in trading amid a broader selloff. 

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