What Happened
Investor Michael Burry, famed for predicting the 2008 mortgage crisis, is now betting against four major AI stocks: Nvidia (NASDAQ: NVDA), Palantir Technologies (NASDAQ: PLTR), Tesla (NASDAQ: TSLA), and Micron Technology (NASDAQ: MU).
Burry first disclosed Nvidia puts in the first quarter of 2025, comparing the current AI boom to the dot-com bubble that burst in 2000. He argues that AI chips aren’t being depreciated properly and that their usable lifespan will be shorter than anticipated. He also criticized Nvidia’s circular financing model, citing its stake in CoreWeave, which buys Nvidia’s chips.
Nvidia responded with a seven-page defense, but Burry stood firm, saying, “I stand by my analysis. I am not claiming Nvidia is Enron. It is clearly Cisco.” He distinguishes between Enron, a shell company used to manipulate investors, and Cisco, whose business simply dried up after the dot-com bust.
Burry first bought Palantir puts in the third quarter of 2025, calling the stock “wildly overvalued” with fundamental value below $50 per share. As of October 22, 2026, Palantir trades at $201, making it the most expensive stock in the S&P 500 on a price-to-sales basis at 84 times trailing-12-month sales and 171 times trailing-12-month earnings.
He has held a short position against Tesla since 2021, calling it “ridiculously overvalued” in November 2025 and buying new Tesla puts in June 2026. Tesla trades at a P/E ratio of 359, with net income declining 60% last year. Despite launching new products like humanoid robots and a flying car, Tesla stock is down 14% this year.
Burry announced puts on Micron in July 2026, warning that the memory shortage will resolve as production catches up, leading to a down cycle. Micron stock has surged 220% year to date but trades at only 12 times trailing-12-month sales.
What This Means For You
If you’re an individual investor holding any of these four stocks, Burry’s bearish stance should prompt a closer look at your portfolio allocation. His track record demands attention, even if you ultimately disagree with his timing or conclusions.
For Nvidia, the core question is whether the AI infrastructure boom can sustain current valuations. Burry’s depreciation argument suggests that companies may be overestimating how long their AI hardware will remain productive. This matters because if chips become obsolete faster than expected, the massive capital expenditures driving the current rally could face write-downs. Watch upcoming earnings calls for commentary on chip utilization rates and replacement cycles.
Palantir’s valuation presents a different challenge. At $201 per share with a P/E of 171, the stock is pricing in explosive growth. While demand for its Artificial Intelligence Platform (AIP) from U.S. businesses remains strong, any slowdown in government or commercial contracts could trigger a sharp correction. Consider trimming positions if you’re sitting on substantial gains, or wait for a pullback before initiating new ones.
Tesla investors face a complex landscape. The company’s pivot toward AI and robotics, including its recent flying car reveal, aims to justify its premium valuation. However, with net income down 60% last year and increasing competition in electric vehicles, the path to sustained profitability remains uncertain. Risk-tolerant investors might find opportunities in volatility, but position sizing is crucial.
Micron’s situation reflects the semiconductor industry’s inherent cyclicality. While the stock appears cheap at 12 times sales, memory prices can swing dramatically based on supply and demand. If you’re invested, consider hedging strategies or setting stop-losses to manage downside risk during potential downturns.
Across all four positions, Burry’s moves highlight the importance of independent research. Don’t let celebrity investor opinions override your own analysis, but do use them as catalysts to re-examine assumptions about valuation and growth prospects.
Why It Matters
This could signal growing skepticism among sophisticated investors about the sustainability of the AI rally. Burry’s comparison to Cisco rather than Enron suggests he sees parallels to the post-dot-com correction, where once-mighty tech companies saw their valuations collapse as growth expectations failed to materialize.
The broader implication is that the AI build-out may be entering a phase where fundamentals matter more than narrative. If major players like Nvidia face scrutiny over accounting practices or circular business relationships, it could trigger a re-rating across the entire sector. This aligns with concerns about rising AI capital costs and investor pushback on valuations in other tech segments.
Key Takeaway
- Michael Burry is shorting Nvidia, Palantir, Tesla, and Micron, viewing the AI boom as overvalued.
- His dot-com bubble comparison suggests potential for significant market corrections in AI stocks.
- Investors should reassess portfolio allocations and consider hedging strategies amid heightened volatility.
- Fundamental analysis becomes critical as the AI sector faces increased scrutiny from institutional players.
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