Caterpillar drops about 7% after Michael Burry discloses a first short position

Caterpillar (CAT) slid by nearly 7% on Wednesday after famed investor Michael Burry said he had opened his first short position in the stock, according to market coverage cited by Yahoo Finance. The move came as Caterpillar shares had surged alongside expectations of sustained spending on artificial-intelligence infrastructure, pushing the company’s valuation higher and making the stock a renewed target for traders looking for overextension.

Burry’s disclosure landed as Caterpillar was trading near an all-time high of $1,064.90, according to Briefs Finance. A short position is a bet that a stock will fall, typically executed by borrowing shares to sell them now and buying them back later at a lower price. If the stock rises instead, short sellers can face losses that grow as the shares climb.

The broader selloff was not confined to Caterpillar. Briefs Finance reported that semiconductor-linked stocks and exchange-traded products also declined after Burry’s comments, with Applied Materials dropping more than 11% and the iShares Semiconductor ETF (SOXX) falling more than 6%. The iShares Semiconductor ETF is a fund designed to track a basket of semiconductor companies, so broad weakness can reflect the same market repricing across the chip supply chain rather than company-specific news alone.

Burry also pointed to what he described as overvaluation in the semiconductor complex. Briefs Finance framed his view around the idea that the rally in AI-related infrastructure spending had driven many related equities too far above fundamentals. In the same coverage, Burry warned that the semiconductor rebound represented the “beginning of the end,” language that underscores a view that the market may be discounting an extended boom for chip demand that could later slow.

Caterpillar’s role in that AI-driven narrative is indirect but central to the capital-spending cycle. Heavy equipment is used in large-scale construction and industrial projects, including data center builds. As AI data centers expand, demand for mining, materials handling, and construction activity can rise, and Caterpillar is widely viewed as a proxy for that capex cycle.

Even within the AI investment ecosystem, markets have recently grappled with valuation questions. Briefs Finance cited sharp gains across semiconductors over recent quarters, including a reported 88% rise in the Philadelphia Semiconductor Index in the second quarter and a 101% gain for the first half. When rallies are steep and concentrated, short sellers can gain leverage by targeting expensive names, ETFs, or the most liquid bellwethers tied to the same theme.

Caterpillar did not announce any new operational update in the reporting tied to this move, and the evidence in the market coverage centers on Burry’s disclosure rather than company-specific guidance. What remains unclear from the public reports so far is the size of the short position and whether other catalysts, such as changes in dealer positioning, macro data, or news about industrial demand, also contributed to the stock’s intraday reversal.

Investors watching next will likely focus on whether CAT’s weakness persists beyond the day of the disclosure and whether additional disclosures or follow-on commentary from Burry or other short-focused investors emerge. Given the stock’s move against a record-high backdrop, traders will also watch for any signs that demand expectations for AI-related construction and industrial activity are being revised downward or whether the drop fades as the market digests the trade. More broadly, the semiconductor complex may remain volatile if investors continue to reassess how much AI hype is already reflected in prices.