FIX vs PWR: Correlation
Comfort Systems USA (FIX) and Quanta Services (PWR) show a strong relationship: their 3-year correlation of weekly returns is 0.76.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FIX and PWR?
Across a 3-year window, the weekly returns of FIX and PWR correlate at 0.76, strong. Little has changed lately, as the 1-year reading of 0.67 lands near the 3-year figure. Stretching to 5 years gives 0.71, with an annualized covariance of 1215.2 %².
PWR is one of the assets that tracks FIX most closely: it ranks #2 out of the 37 assets we track against FIX. Their recent paths diverged sharply: over the last 12 months FIX outperformed by 64.9 percentage points (+128.0% for FIX against +63.1% for PWR). On a rolling one-year basis the correlation drifted between 0.52 and 0.90, a moderate band.
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.
FIX vs PWR: side by side
| FIX (Comfort Systems USA) | PWR (Quanta Services) | |
|---|---|---|
| 1-year return | +128.0% | +63.1% |
| 5-year return | +2077.9% | +506.1% |
| Volatility (ann.) | 47.4% | 33.9% |
| Beta vs S&P 500 | 1.74 | 1.29 |
| Max drawdown (3Y) | -46.0% | -33.9% |
| Market cap | $56.8B | $93.5B |
| P/E (trailing) | 39.8 | 70.4 |
| Dividend yield | 0.16% | 0.07% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | FIX | PWR |
|---|---|---|
| 2022 | +17.0% | +24.6% |
| 2023 | +79.6% | +51.7% |
| 2024 | +106.9% | +46.6% |
| 2025 | +120.9% | +33.7% |
| 2026 | +73.3% | +47.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FIX and PWR good diversifiers for each other?
Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between FIX and PWR?
As of 2026-08-27, the correlation of weekly returns between FIX and PWR is 0.76 over 3 years, 0.67 over 1 year and 0.71 over 5 years.
Is PWR a good diversifier for FIX?
Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.76 mean?
A reading of 0.76 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/fix-vs-pwr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fix-vs-pwr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FIX correlations · PWR correlations
