FIX vs MTZ: Correlation
Measured on weekly returns over the past three years, Comfort Systems USA (FIX) and MasTec, Inc. (MTZ) carry a correlation of 0.65, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FIX and MTZ?
Across a 3-year window, the weekly returns of FIX and MTZ correlate at 0.65, strong. Little has changed lately, as the 1-year reading of 0.62 lands near the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 1412.3 %².
Among the 37 assets we track against FIX, MTZ ranks #7 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months FIX outperformed by 88.5 percentage points (+128.0% for FIX against +39.5% for MTZ).
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 MTZ: side by side
| FIX (Comfort Systems USA) | MTZ (MasTec, Inc.) | |
|---|---|---|
| 1-year return | +128.0% | +39.5% |
| 5-year return | +2077.9% | +170.8% |
| Volatility (ann.) | 47.4% | 45.9% |
| Beta vs S&P 500 | 1.74 | 1.37 |
| Max drawdown (3Y) | -46.0% | -52.8% |
| Market cap | $56.8B | $20.2B |
| P/E (trailing) | 39.8 | 40.1 |
| Dividend yield | 0.16% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | FIX | MTZ |
|---|---|---|
| 2022 | +17.0% | -7.5% |
| 2023 | +79.6% | -11.3% |
| 2024 | +106.9% | +79.8% |
| 2025 | +120.9% | +59.7% |
| 2026 | +73.3% | +15.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FIX and MTZ good diversifiers for each other?
To a limited degree. At 0.65 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 FIX and MTZ?
As of 2026-08-27, the correlation of weekly returns between FIX and MTZ is 0.65 over 3 years, 0.62 over 1 year and 0.62 over 5 years.
Is MTZ a good diversifier for FIX?
To a limited degree. At 0.65 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 0.65 mean?
A reading of 0.65 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-mtz.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fix-vs-mtz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FIX correlations · MTZ correlations
