Competitive Comparison
Talen Energy vs. Vistra vs. Constellation Energy
Three ways to own the physical power constraint underneath the AI buildout — two direct holdings and the largest nuclear operator in the country, which I watch but don't own.
| Metric | Talen Energy (TLN) | Vistra (VST) | Constellation Energy (CEG) |
|---|---|---|---|
| PEG ratio | N/A (not meaningfully calculable) | 0.61 | Not consistently disclosed across providers |
| Adj. EBITDA | $2.025–2.225B (FY26 guidance, raised) | $6.8–7.6B (FY26 guidance) | $2.78B |
| Market cap | $18.26B | $48.64B | $98.72B |
PEG ratio, compared
Why Talen and Vistra, not Constellation
Constellation is the largest nuclear power producer in the country and a real, well-run business, with a $98.72B market cap that dwarfs either of my two holdings. I hold Talen and Vistra instead partly because they're smaller and more directly levered to the specific data-center power-purchase-agreement story I'm betting on, and partly because I already own both and treat them as a single correlated thematic bet for risk purposes. Vistra's 0.61 PEG is a real, checkable reason the smaller name screens cheaply on a growth-adjusted basis even after its own run — though I hold both Talen and Vistra as a pair specifically because either one benefiting from data-center demand tightness would likely lift both together.