Key Takeaways
- Michael Burry disclosed a short position in Micron (MU) at $1,051.87, describing the rally as fueled by “greater fool theory” and investor panic over missing out.
- The investor criticized Micron’s poor return on invested capital and emphasized its extreme cyclical history as a pure DRAM manufacturer.
- Micron shares have soared more than 240% since early 2026, though the stock has declined roughly 10% over the last month.
- This short position is part of Burry’s broader bearish stance on AI-related stocks, including Nvidia, Tesla, Applied Materials, Caterpillar, and the SOXX ETF.
- Simultaneously, Burry increased long positions in PayPal, Sprouts Farmers Market, Zoetis, Fannie Mae, and Freddie Mac according to his disclosure.
Michael Burry, the legendary investor whose prescient bets inspired “The Big Short,” has taken a direct short position against Micron Technology (MU), revealing the trade through a Substack announcement.
Burry’s short entry price stands at $1,051.87 per share. He noted that he opted for direct shorting rather than put options because premiums were prohibitively expensive, though he remains open to adding options exposure if implied volatility decreases.
Since the beginning of 2026, Micron shares have exploded higher by more than 240%. Despite this extraordinary run, the stock has retreated approximately 10% in recent weeks.
Burry characterized the meteoric rise as a product of “fear of missing out, greater fool theory, and public commitment bias.” He noted that Micron’s current distance above its 200-day moving average represents the most extreme deviation since 1984 — surpassing even levels seen during the dot-com bubble.
He emphasized Micron’s notorious volatility, highlighting that the stock has experienced 34 separate declines exceeding 30% over the past four decades. Such historical patterns often fade from memory during euphoric market phases.
The Case for a Bubble
Burry’s fundamental critique focuses heavily on capital efficiency metrics. He pointed to Micron’s “terrible” return on invested capital and return on equity, noting that the company actually destroys shareholder value in approximately one of every three quarters.
He also highlighted the massive wave of global semiconductor investment as a warning signal rather than a positive catalyst. South Korea has unveiled a semiconductor initiative exceeding $500 billion in value. Burry’s interpretation: excessive capital flowing into an industry typically compresses margins and returns rather than enhancing them.
He drew parallels between today’s AI semiconductor excitement and the dot-com bubble, suggesting that enormous capital deployment is chasing speculative narratives rather than demonstrated profitability.
A Broader Bearish AI Strategy
The Micron short represents just one component of Burry’s comprehensive bearish thesis on artificial intelligence stocks.
Earlier in the week, he revealed short positions targeting Nvidia (NVDA), Applied Materials (AMAT), Caterpillar (CAT), Tesla (TSLA), and the iShares Semiconductor ETF (SOXX).
Meanwhile, Burry has been accumulating long positions in several value-oriented names. He added to stakes in PayPal (PYPL) at $45.31, Sprouts Farmers Market (SFM) at $89.33, Zoetis (ZTS) at $74.80, Fannie Mae (FNMA) at $6.15, and Freddie Mac (FMCC) at $5.69.
Following the disclosure of Burry’s short position, Micron stock declined approximately 5.5% during the trading session.
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