SPXC vs VST: Correlation
SPX Technologies, Inc. (SPXC) and Vistra Corp. (VST) show a moderate relationship: their 3-year correlation of weekly returns is 0.53.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPXC and VST?
Across a 3-year window, the weekly returns of SPXC and VST correlate at 0.53, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.40 versus 0.53 over 3 years. Stretching to 5 years gives 0.41, with an annualized covariance of 945.0 %².
Among the 16 assets we track against SPXC, VST ranks #8 by 3-year correlation. The last year tells two different stories: SPXC led by 34.5 percentage points, +6.7% for SPXC against -27.8% for VST. Note the risk asymmetry: VST runs 1.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
SPXC vs VST: side by side
| SPXC (SPX Technologies, Inc.) | VST (Vistra Corp.) | |
|---|---|---|
| 1-year return | +6.7% | -27.8% |
| 5-year return | +226.0% | +713.7% |
| Volatility (ann.) | 33.7% | 52.8% |
| Beta vs S&P 500 | 1.20 | 1.62 |
| Max drawdown (3Y) | -33.5% | -48.8% |
| Market cap | $10.3B | $46.9B |
| P/E (trailing) | 36.1 | 23.6 |
| Dividend yield | 0.00% | 0.65% |
| Sector / category | US Listed | Utilities |
Year-by-year returns
| Year | SPXC | VST |
|---|---|---|
| 2022 | +10.0% | +5.1% |
| 2023 | +53.9% | +70.7% |
| 2024 | +44.1% | +261.5% |
| 2025 | +37.5% | +17.7% |
| 2026 | +2.6% | -13.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPXC and VST good diversifiers for each other?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between SPXC and VST?
As of 2026-08-27, the correlation of weekly returns between SPXC and VST is 0.53 over 3 years, 0.40 over 1 year and 0.41 over 5 years.
Is VST a good diversifier for SPXC?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: SPXC correlations · VST correlations
