EME vs PRIM: Correlation
Emcor (EME) and Primoris Services Corporation (PRIM) show a moderate relationship: their 3-year correlation of weekly returns is 0.56.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EME and PRIM?
Across a 3-year window, the weekly returns of EME and PRIM correlate at 0.56, moderate. The past 12 months show a weaker link (0.35) than the 3-year average (0.56). Stretching to 5 years gives 0.56, with an annualized covariance of 995.9 %².
Among the 34 assets we track against EME, PRIM ranks #16 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months EME outperformed by 58.7 percentage points (+24.5% for EME against -34.2% for PRIM).
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 PRIM: side by side
| EME (Emcor) | PRIM (Primoris Services Corporation) | |
|---|---|---|
| 1-year return | +24.5% | -34.2% |
| 5-year return | +540.3% | +212.4% |
| Volatility (ann.) | 34.9% | 50.6% |
| Beta vs S&P 500 | 1.31 | 1.49 |
| Max drawdown (3Y) | -36.2% | -63.1% |
| Market cap | $34.2B | $4.2B |
| P/E (trailing) | 23.8 | 30.7 |
| Dividend yield | 0.09% | 0.41% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | EME | PRIM |
|---|---|---|
| 2022 | +16.8% | -7.5% |
| 2023 | +46.0% | +52.6% |
| 2024 | +111.3% | +131.1% |
| 2025 | +35.1% | +63.1% |
| 2026 | +26.9% | -37.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EME and PRIM good diversifiers for each other?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between EME and PRIM?
As of 2026-08-27, the correlation of weekly returns between EME and PRIM is 0.56 over 3 years, 0.35 over 1 year and 0.56 over 5 years.
Is PRIM a good diversifier for EME?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.56 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-prim.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/eme-vs-prim/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EME correlations · PRIM correlations
