Why is Vistra stock rallying today?

Vistra Corp (VST), a nuclear and natural gas power producer, has seen its stock fall over 30% from its 2025 high. The U.S. Department of Energy plans to lend VST $4.2 billion to upgrade three nuclear plants, aiming to increase power output. The loan could reduce VST's interest costs and support its revenue growth. VST's stock rose 6% in premarket trading after the announcement, but loan terms are not yet final, and regulatory issues persist.

Samsung and five affiliates are investing $1 billion in Helix Digital Infrastructure, a data center development firm founded by KKR and backed by Nvidia. Samsung's investment includes $500 million from Samsung Electronics, with other affiliates contributing the rest. Helix aims to secure power capacity and network connections for data centers, giving Samsung exposure to AI infrastructure beyond hardware.

Constellation Energy, Google, and the U.S. DOE announced a 20-year power purchase agreement for 890 MW of nuclear uprates at 11 reactors, with Constellation investing $4.3B. The DOE also committed up to $4.2B for Vistra's nuclear upgrades, adding 433 MW of capacity. Both deals aim to boost existing nuclear capacity to meet rising electricity demand, particularly in the PJM Interconnection.

Vistra Corp. (VST) stock rose 4.21% after the U.S. Department of Energy (DOE) announced a conditional $4.2 billion loan for nuclear plant upgrades. The company's stock has surged from $140.73 to $167.25 in a month. VST reported quarterly revenue of $4.017 billion, EBITDA of $1.304 billion, and net income of $305 million. Analysts from Siebert Williams and BMO Capital have given bullish ratings with price targets of $202 and $210, respectively.

Vistra's stock rose nearly 7% in a single session, increasing its market value by $3.9 billion, an unusual move for a utility stock. The gain extended throughout the day, and the stock held above $165 near the close.

The U.S. Energy Department has announced a conditional $4.2B loan to Vistra for nuclear upgrades in Pennsylvania and Ohio, aiming to increase electricity production and preserve jobs. Projects include Beaver Valley, Davis-Besse, and Perry plants, adding 433 MW capacity and extending operations by 20 years. Financing is contingent on meeting requirements.