GFF vs TREX: Correlation
Griffon Corporation (GFF) and Trex Company, Inc. (TREX) show a strong relationship: their 3-year correlation of weekly returns is 0.64.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GFF and TREX?
On 3 years of weekly data the GFF/TREX correlation comes out at 0.64, strong. Recent behaviour matches the longer record: 0.63 over 1 year against 0.64 over 3. The 5-year figure is 0.51, and annualized covariance runs at 1126.6 %².
Among the 26 assets we track against GFF, TREX ranks #7 by 3-year correlation. The last year tells two different stories: GFF led by 55.7 percentage points, +28.4% for GFF 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.
GFF vs TREX: side by side
| GFF (Griffon Corporation) | TREX (Trex Company, Inc.) | |
|---|---|---|
| 1-year return | +28.4% | -27.3% |
| 5-year return | +396.8% | -58.7% |
| Volatility (ann.) | 38.7% | 45.3% |
| Beta vs S&P 500 | 1.14 | 1.48 |
| Max drawdown (3Y) | -27.9% | -69.9% |
| Market cap | $4.5B | $4.7B |
| P/E (trailing) | 21.1 | 27.4 |
| Dividend yield | 0.83% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GFF | TREX |
|---|---|---|
| 2022 | +36.9% | -68.7% |
| 2023 | +84.0% | +95.6% |
| 2024 | +18.0% | -16.6% |
| 2025 | +4.4% | -49.2% |
| 2026 | +35.4% | +31.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GFF and TREX good diversifiers for each other?
Only partially. A correlation of 0.64 means GFF 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 GFF and TREX?
As of 2026-08-27, the correlation of weekly returns between GFF and TREX is 0.64 over 3 years, 0.63 over 1 year and 0.51 over 5 years.
Is TREX a good diversifier for GFF?
Only partially. A correlation of 0.64 means GFF 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 0.64 mean?
A reading of 0.64 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/gff-vs-trex.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/gff-vs-trex/)
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Related comparisons
Hubs: GFF correlations · TREX correlations
