Compare · TAC vs VST
TAC vs VST
Side-by-side comparison of TransAlta Corporation (TAC) and Vistra Corp. (VST): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both TAC and VST operate in Electric Utilities: Central (Utilities), so they compete in similar markets.
- VST is the larger of the two at $51.44B, about 13.0x TAC ($3.94B).
- Over the past year, TAC is up 9.5% and VST is down 16.2% - TAC leads by 25.7 points.
- VST has been more active in the news (8 items in the past 4 weeks vs 2 for TAC).
- VST has more recent analyst coverage (25 ratings vs 14 for TAC).
TransAlta Corporation
TransAlta Corporation owns, operates, and develops a diverse fleet of electrical power generation assets in Canada, the United States, and Australia. It operates through six segments: Hydro, Wind and Solar, North American Gas, Australian Gas, Alberta Thermal, and Centralia. The company owns and operates hydro, wind and solar, natural gas-fired, and coal-fired facilities. It also engages in wholesale trading of electricity and other energy-related commodities and derivatives; and related mining operations and natural gas pipeline operations. The company serves municipalities, medium and large industries, businesses, and utility customers. TransAlta Corporation was founded in 1909 and is headquartered in Calgary, Canada.
Vistra Corp.
Vistra Corp., together with its subsidiaries, engages in the electricity business in the United States. It operates through six segments: Retail, Texas, East, West, Sunset, and Asset Closure. The company retails electricity and natural gas to residential, commercial, and industrial customers across 20 states in the United States and the District of Columbia. It is also involved in the electricity generation, wholesale energy sales and purchases, commodity risk management, fuel production, and fuel logistics management activities. The company serves approximately 4.5 million residential, commercial, and industrial customers. It has a generation capacity of approximately 38,700 megawatts with a portfolio of natural gas, nuclear, coal, solar, and battery energy storage facilities. The company was formerly known as Vistra Energy Corp. and changed its name to Vistra Corp. in July 2020. Vistra Corp. was founded in 1882 and is based in Irving, Texas.
Latest TAC
- SEC Form 6-K filed by TransAlta Corporation
- TransAlta to Host Second Quarter 2026 Results Conference Call
- SEC Form 6-K filed by TransAlta Corporation
- Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days
- BMO Capital Markets resumed coverage on TransAlta
- TD Cowen resumed coverage on TransAlta
- SEC Form 6-K filed by TransAlta Corporation
- SEC Form 6-K filed by TransAlta Corporation
- TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares
- SEC Form 6-K filed by TransAlta Corporation
Latest VST
- Vistra Corp. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation, Financial Statements and Exhibits
- Vistra Corp. filed SEC Form 8-K: Other Events
- As Canada Highlights Fusion in Its Nuclear Energy Strategy, Shareholders Vote to Take a Fusion Pioneer Public
- Vistra to Report Second Quarter Results on Aug. 7, 2026
- Vistra Corp. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation, Financial Statements and Exhibits
- Director Sult John R sold $1,105,000 worth of shares (6,500 units at $170.00) as part of a pre-agreed trading plan, decreasing direct ownership by 8% to 70,714 units (SEC Form 4)
- Director Acosta Arcilia sold $2,512,800 worth of shares (15,000 units at $167.52) as part of a pre-agreed trading plan, decreasing direct ownership by 32% to 32,607 units (SEC Form 4)
- Amendment: SEC Form 144/A filed by Vistra Corp.
- Director Helm Scott B sold $4,000,000 worth of shares (25,000 units at $160.00) as part of a pre-agreed trading plan, decreasing direct ownership by 10% to 232,200 units (SEC Form 4)
- SEC Form 144 filed by Vistra Corp.