Billionaire technology investor Peter Thiel’s hedge fund, Thiel Macro LLC, disclosed 372,755 shares of Vistra Corp. (NYSE:VST) at the end of Q2 2026, worth about $59.1 million.
The position is interesting because Vistra sits directly in the argument over whether electricity, rather than GPUs, becomes the scarce asset in the next leg of the AI buildout. Data centers need large blocks of reliable power, and Vistra owns a broad generation fleet with exposure to fast-growing power markets. Wolfe Research has argued that the market may be underestimating Vistra’s ability to convert data-center demand into sustained EBITDA and free-cash-flow growth.
Image by Markus Distelrath from Pixabay
There is also a valuation wrinkle though. Recent Insider Monkey analysis put Vistra at roughly 15.8 times forward earnings, below Constellation Energy at about 22.9 times. Vistra Corp. does not have Constellation’s same nuclear-heavy contracted profile, but that discount gives the stock room to rerate if data-center contracts make more of its future cash flows visible.
The caution is that Thiel Macro’s Q2 filing says nothing about why the fund owns Vistra, or exactly when during the quarter it accumulated the position. The filing establishes the position at quarter end, not a same-day purchase and not Peter Thiel’s reasoning for holding it. It would be sloppy to call it an AI bet on Thiel’s behalf. Power prices, hedges, plant economics and capital allocation can matter as much as data-center headlines, and a cheap multiple versus Constellation can persist if investors continue to prefer nuclear assets and long-duration contracts.
For the broader long side, the latest readily verifiable Insider Monkey count showed 111 hedge funds holding VST at the end of Q2 2026, up from 106 in the prior quarter. Appaloosa also held about 2.22 million shares in the Q2 filings, up roughly 10% from Q1. As of August 14, short interest stood near 9.64 million shares, or about 2.9% of float, with 1.9 days to cover. Thiel’s disclosed stake does not settle the power thesis, but it makes Vistra unusually interesting while the stock is well below its recent highs.
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