Transalta Corp vs Vistra Corp

Transalta Corp (TAC) is fairly valued and Vistra Corp (VST) is overvalued.

Both trade above our estimate of their intrinsic value. TAC is the closer of the two: -0%, against -34% for VST.

Values as of the 19 Oct 2026 close.

Transalta Corp (TAC)

Discounting its cash flows at 7.9% (average of 2 methods) values the shares at $12.97; the price of $13.00 sits right on that value, and 80% of that value comes from beyond year five.

Leak Score 50/100 on 10 of 12 signals

Vistra Corp (VST)

Discounting its cash flows at 9.8% (average of 2 methods) values the shares at $111.54; the price of $149.70 is 34% above that value, and 73% of that value comes from beyond year five.

Leak Score 45/100 on 12 of 12 signals

MetricTACVST
VerdictFairly valuedOvervalued
Price$13.00$149.70
Intrinsic value$12.97$111.54
Margin of safety-0%-34%
Leak Score50/100 (10/12)45/100 (12/12)
Market cap$4.1B$50.2B
Revenue growth, 5 years3.3%8.9%
Operating margin-1.2%10.7%
Net margin-3.3%11.5%
Return on equity-1.4%43.1%
Debt to equity2.383.63
P/E—25.3x
Forward P/E32.9x14.8x
P/B7.0x16.7x
Dividend yield1.5%0.7%

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