Thiel Macro Discloses $76M Stake in Vista, VIST Shares Surge

Peter Thiel’s hedge fund, Thiel Macro LLC, has disclosed a $76 million stake in Vista Energy, Argentina’s largest oil exporter, according to a U.S. regulatory filing published on August 14, 2026. The investment, representing about 1.2 million American Depositary Shares and roughly 1% of Vista, ranks as Thiel’s second-largest publicly disclosed holding, trailing only Amazon. The disclosure immediately boosted Vista’s shares, which rose approximately 5% on Monday following the news.

The filing shows the position was held as of the end of the second quarter, on June 30, 2026. Vista, a Mexico-incorporated producer focused almost entirely on Argentina’s Vaca Muerta shale formation, is the only non-U.S. company listed in Thiel Macro’s portfolio. The investment places Thiel, the billionaire co-founder of PayPal and Palantir, firmly within a growing wave of foreign capital targeting Argentina’s energy sector amid a dramatic economic overhaul by President Javier Milei.

Vista operates at the heart of the Vaca Muerta boom, a shale patch in Patagonia that has propelled Argentina into a net energy exporter. The formation holds the world’s second-largest shale gas reserves and fourth-largest...