NRG vs VST: Correlation
NRG Energy (NRG) and Vistra Corp. (VST) show a strong relationship: their 3-year correlation of weekly returns is 0.73.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NRG and VST?
Over the past 3 years, NRG and VST moved with a correlation of 0.73, which is strong. Little has changed lately, as the 1-year reading of 0.76 lands near the 3-year figure. Over 5 years the correlation is 0.66, and the annualized covariance of weekly returns is 1712.6 %².
In NRG's tracked universe of 31 assets, VST sits right near the top at #1. Over the last 12 months NRG came out ahead by 6.0 percentage points (-21.8% against -27.8%). This link changes with the market regime, having swung between 0.24 and 0.80 on a rolling one-year basis.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
NRG vs VST: side by side
| NRG (NRG Energy) | VST (Vistra Corp.) | |
|---|---|---|
| 1-year return | -21.8% | -27.8% |
| 5-year return | +191.5% | +713.7% |
| Volatility (ann.) | 44.4% | 52.8% |
| Beta vs S&P 500 | 1.30 | 1.62 |
| Max drawdown (3Y) | -38.9% | -48.8% |
| Market cap | $24.1B | $46.9B |
| P/E (trailing) | 30.2 | 23.6 |
| Dividend yield | 1.61% | 0.65% |
| Sector / category | Utilities | Utilities |
Year-by-year returns
| Year | NRG | VST |
|---|---|---|
| 2022 | -23.5% | +5.1% |
| 2023 | +69.4% | +70.7% |
| 2024 | +78.6% | +261.5% |
| 2025 | +78.9% | +17.7% |
| 2026 | -27.5% | -13.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NRG and VST good diversifiers for each other?
Somewhat, no more. With 0.73 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between NRG and VST?
As of 2026-08-27, the correlation of weekly returns between NRG and VST is 0.73 over 3 years, 0.76 over 1 year and 0.66 over 5 years.
Is VST a good diversifier for NRG?
Somewhat, no more. With 0.73 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.73 mean?
A reading of 0.73 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/nrg-vs-vst.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/nrg-vs-vst/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: NRG correlations · VST correlations
