TAC vs VST

For growth investors, Vistra Corp.

(VST) is the stronger pick with -12. 4% revenue growth year-over-year, versus -15. 5% for TransAlta Corporation (TAC). Vistra Corp. (VST) offers the better valuation at 69. 7x trailing P/E (18. 0x forward), making it the more compelling value choice. Analysts rate TransAlta Corporation (TAC) a "Buy" — based on 9 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On forward P/E, Vistra Corp.

is actually cheaper at 18. 0x.

Over the past 5 years, Vistra Corp.

(VST) delivered a total return of +884. 7%, compared to +39. 8% for TransAlta Corporation (TAC). Over 10 years, the gap is even starker: VST returned +942. 3% versus TAC's +171. 5%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), TransAlta Corporation (TAC) is the lower-risk stock at 1.

21β versus Vistra Corp. 's 1. 56β — meaning VST is approximately 29% more volatile than TAC relative to the S&P 500. On balance sheet safety, TransAlta Corporation (TAC) carries a lower debt/equity ratio of 3% versus 4% for Vistra Corp. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Vistra Corp.

(VST) is pulling ahead at -12. 4% versus -15. 5% for TransAlta Corporation (TAC). On earnings-per-share growth, the picture is similar: Vistra Corp. grew EPS -68. 4% year-over-year, compared to -206. 7% for TransAlta Corporation. Over a 3-year CAGR, VST leads at -1. 6% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Vistra Corp.

(VST) is the more profitable company, earning 5. 6% net margin versus -5. 7% for TransAlta Corporation — meaning it keeps 5. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: VST leads at 7. 9% versus -9. 2% for TAC. At the gross margin level — before operating expenses — TAC leads at 32. 6%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

On forward earnings alone, Vistra Corp.

(VST) trades at 18. 0x forward P/E versus 78. 1x for TransAlta Corporation — 60. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for VST: 47. 7% to $227. 60.

All stocks in this comparison pay dividends.

TransAlta Corporation (TAC) offers the highest yield at 1. 4%, versus 0. 6% for Vistra Corp. (VST).

For long-horizon retirement investors, Vistra Corp.

(VST) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (0. 6% yield, +942. 3% 10Y return). Both have compounded well over 10 years (VST: +942. 3%, TAC: +171. 5%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the null sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.