The heaviest weight on the market was Nvidia, whose chips are powering much of the move into AI. It sank 3.5%.

It’s 1988, and somewhere in New York, a young financial analyst named Larry Fink is nursing a bruised ego and a $100 million loss. That catastrophic trade at First Boston… Read More

The eye-opening report spooked investors and sent AI stocks sliding. Nvidia dropped 3.5% on Tuesday, Arm Holdings fell 3.8%, and data analytics firm Palantir took the hardest hit, plunging nearly 9% yesterday and is still sinking this morning.

BigBear.ai ( BBAI 2.46%) stock was in roaring form on the stock market for much of the past year, rising by a whopping 337% as of this writing, despite even wilder swings in its share price. The past month, however, has been one that the company's investors may wish they could forget -- the stock lost 31% of its value during the period.

Wall Street remained unsteady, following a tech decline with modest changes across major indexes. Target's leadership changes and weak sales impacted its stocks, while Lowe's outperformed expectations.

Wall Street's current valuations rank among the highest in history, driven by AI hype, stretched metrics, and fragile market breadth dominated by mega-cap stocks.

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But for new entrants to quantum computing stocks, I would only buy IONQ, as it is ahead of its peers in terms of tech. QBTS and RGTI are riskier and may not live up to the hype a year or two out. The last time IONQ broke below its 30-day moving average,

Wall Street faded on Tuesday following drops for Nvidia and other stars that have been riding the mania surrounding artificial-intelligence technology.

Wall Street’s AI party may be hitting its first reality check. For 18 months, the “Magnificent 7” — Apple, Microsoft, Amazon, Alphabet, Meta, Tesla, and Nvidia — have powered the S&P 500. But cracks are showing.