EME vs FIX: Correlation
Emcor (EME) and Comfort Systems USA (FIX) show a very strong relationship: their 3-year correlation of weekly returns is 0.86.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EME and FIX?
Over the past 3 years, EME and FIX moved with a correlation of 0.86, which is very strong, meaning they move nearly in lockstep. The past 12 months show a weaker link (0.73) than the 3-year average (0.86). Over 5 years the correlation is 0.85, and the annualized covariance of weekly returns is 1421.1 %².
FIX is one of the assets that tracks EME most closely: it ranks #1 out of the 34 assets we track against EME. Their recent paths diverged sharply: over the last 12 months FIX outperformed by 103.5 percentage points (+24.5% for EME against +128.0% for FIX). The rolling one-year correlation moved between 0.71 and 0.96 over the past three years, a moderate range.
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.
EME vs FIX: side by side
| EME (Emcor) | FIX (Comfort Systems USA) | |
|---|---|---|
| 1-year return | +24.5% | +128.0% |
| 5-year return | +540.3% | +2077.9% |
| Volatility (ann.) | 34.9% | 47.4% |
| Beta vs S&P 500 | 1.31 | 1.74 |
| Max drawdown (3Y) | -36.2% | -46.0% |
| Market cap | $34.2B | $56.8B |
| P/E (trailing) | 23.8 | 39.8 |
| Dividend yield | 0.09% | 0.16% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | EME | FIX |
|---|---|---|
| 2022 | +16.8% | +17.0% |
| 2023 | +46.0% | +79.6% |
| 2024 | +111.3% | +106.9% |
| 2025 | +35.1% | +120.9% |
| 2026 | +26.9% | +73.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EME and FIX good diversifiers for each other?
Not really. At 0.86, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between EME and FIX?
Using weekly returns as of 2026-08-27: 0.86 over 3 years, with 0.73 over the last year and 0.85 over 5 years.
Is FIX a good diversifier for EME?
Not really. At 0.86, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.86 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/eme-vs-fix.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/eme-vs-fix/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EME correlations · FIX correlations
