BLDR vs TREX: Correlation
Builders FirstSource (BLDR) and Trex Company, Inc. (TREX) show a strong relationship: their 3-year correlation of weekly returns is 0.73.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLDR and TREX?
Across a 3-year window, the weekly returns of BLDR and TREX correlate at 0.73, strong. Little has changed lately, as the 1-year reading of 0.74 lands near the 3-year figure. Stretching to 5 years gives 0.69, with an annualized covariance of 1497.3 %².
Within BLDR's tracked universe of 48 assets, TREX comes in at #12 by 3-year correlation. The last year tells two different stories: TREX led by 25.3 percentage points, -52.6% for BLDR 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.
BLDR vs TREX: side by side
| BLDR (Builders FirstSource) | TREX (Trex Company, Inc.) | |
|---|---|---|
| 1-year return | -52.6% | -27.3% |
| 5-year return | +25.8% | -58.7% |
| Volatility (ann.) | 45.6% | 45.3% |
| Beta vs S&P 500 | 1.36 | 1.48 |
| Max drawdown (3Y) | -68.7% | -69.9% |
| Market cap | $7.2B | $4.7B |
| P/E (trailing) | 74.7 | 27.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | BLDR | TREX |
|---|---|---|
| 2022 | -24.3% | -68.7% |
| 2023 | +157.3% | +95.6% |
| 2024 | -14.4% | -16.6% |
| 2025 | -28.0% | -49.2% |
| 2026 | -34.7% | +31.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLDR and TREX good diversifiers for each other?
Only partially. A correlation of 0.73 means BLDR and TREX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between BLDR and TREX?
Using weekly returns as of 2026-08-27: 0.73 over 3 years, with 0.74 over the last year and 0.69 over 5 years.
Is TREX a good diversifier for BLDR?
Only partially. A correlation of 0.73 means BLDR and TREX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.73 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/bldr-vs-trex.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bldr-vs-trex/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BLDR correlations · TREX correlations
