ESP vs TREX: Correlation
Espey Mfg. & Electronics Corp. (ESP) and Trex Company, Inc. (TREX) show a moderate relationship: their 3-year correlation of weekly returns is 0.38.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ESP and TREX?
On 3 years of weekly data the ESP/TREX correlation comes out at 0.38, moderate. Recent behaviour matches the longer record: 0.36 over 1 year against 0.38 over 3. The 5-year figure is 0.30, and annualized covariance runs at 733.6 %².
Among the 10 assets we track against ESP, TREX ranks #4 by 3-year correlation. The last year tells two different stories: ESP led by 67.0 percentage points, +39.7% for ESP against -27.3% for TREX.
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.
ESP vs TREX: side by side
| ESP (Espey Mfg. & Electronics Corp.) | TREX (Trex Company, Inc.) | |
|---|---|---|
| 1-year return | +39.7% | -27.3% |
| 5-year return | +393.3% | -58.7% |
| Volatility (ann.) | 42.3% | 45.3% |
| Beta vs S&P 500 | 0.97 | 1.48 |
| Max drawdown (3Y) | -29.1% | -69.9% |
| Market cap | – | $4.7B |
| P/E (trailing) | 16.6 | 27.4 |
| Dividend yield | 2.78% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ESP | TREX |
|---|---|---|
| 2022 | -0.1% | -68.7% |
| 2023 | +35.5% | +95.6% |
| 2024 | +66.8% | -16.6% |
| 2025 | +63.3% | -49.2% |
| 2026 | +35.5% | +31.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ESP and TREX good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ESP and TREX?
The ESP/TREX correlation stands at 0.38 on a 3-year window (1 year: 0.36, 5 years: 0.30), computed from weekly returns as of 2026-08-27.
Is TREX a good diversifier for ESP?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 mean?
On the −1 to +1 scale, 0.38 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/esp-vs-trex.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/esp-vs-trex/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ESP correlations · TREX correlations
