With a market capitalization (market cap) of $47.38B — a measure of how much the company is worth — Vistra Corp. is the 343rd most valuable company in Utilities as of August 18, 2026. Shares trade at $140.52, down +3.83% on the day.
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Vistra Corp., along with its various holdings, functions as a unified entity primarily engaged in retail electricity supply and power generation. The company organizes its operations across six distinct segments: Retail, Texas, East, West, Sunset, and Asset Closure. It directly provides electricity and natural gas to residential, commercial, and industrial clients throughout 20 U.S. states and the District of Columbia. Beyond its retail endeavors, Vistra also participates in generating electricity, facilitating wholesale energy transactions, managing commodity-related risks, producing fuel, and overseeing fuel logistics. With approximately 4.3 million customers, Vistra commands an impressive generation capacity of about 38,700 megawatts. This capacity is sustained by a diverse portfolio of facilities, including those powered by natural gas, nuclear energy, coal, solar, and advanced battery energy storage systems. The enterprise, initially known as Vistra Energy Corp., adopted its current name, Vistra Corp., in July 2020. Tracing its origins back to 1882, Vistra Corp. maintains its corporate headquarters in Irving, Texas.
Visit websiteAs of August 18, 2026, Vistra Corp. (VST) is worth $47.38B — this is its market capitalization, the total value of all its outstanding shares.
Vistra Corp.’s market cap is $47.38B, which ranks it #343 among the most valuable companies in the Utilities sector tracked on MarketCapLens.
Vistra Corp. (VST) shares trade at $140.52, down 3.83% on the day, as of August 18, 2026.
Vistra Corp. trades at a price-to-earnings (P/E) ratio of 63.6, based on its latest share price and annual earnings per share.
Fundamentals are annual. Figures labeled with their fiscal year.
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