Invest1 publisher2 min readPublished
Michael Burry sets a 2027 deadline on his bet against Micron and chip stocks
Michael Burry swapped his Micron and Nebius shorts for put options expiring in June and September 2027, with Micron strikes near $500. His AI-bubble call now has a deadline and price levels that chip-stock holders can measure their own positions against.
The Investor · Invest desk
Drafted by a language model from the sources cited here and checked against its claim ledger before publication. How we use AISend a correction
What happened
- In late-September Substack posts, Burry said he is "more confident than ever" that an AI bubble downturn will play out within a year.
- His puts on the SOXX semiconductor ETF carry strikes in the low $400s, a wager against the chip sector as a whole.
- He cited an Ares Management report on AI data-infrastructure spending, much of it financed with debt according to the material he highlighted.
- Earlier in 2026 he had opened direct short positions in Nebius, Micron and Oracle.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- cost Burry's losses can no longer grow with a rising AI rally, but he paid for that cap with a deadline: after the 2027 expiries, a correction does nothing for these positions.
- capability Micron and SOXX holders get a dated bear case with stated price levels to set against their own cost basis and holding period.
- exposure If much of the data-center buildout runs on debt, as the material Burry cited says, lenders carry the downturn risk he describes alongside shareholders.
The Substack posts went up in late September 2026. From there to the June 2027 expiry is about nine months, and to the September 2027 expiry about twelve [1]. Burry's forecast is a downturn within a year [6]. The September puts expire roughly as his own window closes, and the June puts about three months before it, so the June contracts pay only if the decline arrives faster than his forecast requires [2].
A short on Micron loses money for as long as the stock rises, and it has no expiry date. A put loses at most the premium paid, and it ends on a fixed day [1]. Crypto Briefing, which reported the posts, said the switch "suggests even a committed bear is respecting how stubborn the AI rally has been" [12]. Burry shorted Oracle alongside the other two earlier in 2026 [7] and still lists it with Nvidia and Palantir among the AI names he doubts [8].
A strike is the price below which a put starts to pay at expiry. Crypto Briefing wrote that the strikes "offer a sense of how far he expects things to drop" [15]. A strike near $500 on Micron and in the low $400s on SOXX [2][3] is where Burry starts collecting. It need not be where he thinks prices settle. The account does not give current prices for either, the premiums, the position sizes or a Nebius strike, so the distance from market to strike cannot be measured from this record.
The puts pay if the decline comes before mid-2027 and takes Micron below $500 and SOXX below the low $400s [1][2][3]. If prices fall on schedule but stop above those levels, he loses the premium despite calling the direction. If the fall comes after September 2027, he loses it as well, and Crypto Briefing calls timing the obvious risk for him [13].
I think the Micron leg gets tested first. It rests on the Acer chief executive's comment that memory supply, particularly DDR4, is reaching equilibrium [11], and memory pricing is one of the signals Crypto Briefing names [14]. The SOXX leg rests on the Ares Management report and the debt behind data-center spending [9][10]. That is also where the counter-case sits. Debt-financed spending can continue as long as lenders keep funding it, and if it does, Burry can be right about the bubble and still lose on contracts dated 2027. For these positions, the thesis is wrong if Micron sits above $500 and SOXX above the low $400s on the 2027 expiry dates [1][2][3].
What to watch
- Memory pricing, especially DDR4, as a check on the Acer chief executive's equilibrium claim behind the Micron puts.
- The pace of debt issuance for data-center projects, the funding source at the centre of Burry's case.
- Where Micron trades against about $500 and SOXX against the low $400s as the June 2027 expiry approaches.