GFF vs SMID: Correlation
Measured on weekly returns over the past three years, Griffon Corporation (GFF) and Smith-Midland Corporation (SMID) carry a correlation of 0.45, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GFF and SMID?
On 3 years of weekly data the GFF/SMID correlation comes out at 0.45, moderate. Recent behaviour matches the longer record: 0.39 over 1 year against 0.45 over 3. The 5-year figure is 0.33, and annualized covariance runs at 1047.5 %².
By 3-year correlation, SMID places #21 of the 26 assets tracked against GFF. Their recent paths diverged sharply: over the last 12 months GFF outperformed by 67.7 percentage points (+28.4% for GFF against -39.3% for SMID). Risk is not evenly split, since SMID carries 1.6 times the volatility of the other side.
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 SMID: side by side
| GFF (Griffon Corporation) | SMID (Smith-Midland Corporation) | |
|---|---|---|
| 1-year return | +28.4% | -39.3% |
| 5-year return | +396.8% | +32.1% |
| Volatility (ann.) | 38.7% | 60.2% |
| Beta vs S&P 500 | 1.14 | 1.58 |
| Max drawdown (3Y) | -27.9% | -50.2% |
| Market cap | $4.5B | $0.1B |
| P/E (trailing) | 21.1 | 17.4 |
| Dividend yield | 0.83% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GFF | SMID |
|---|---|---|
| 2022 | +36.9% | -56.4% |
| 2023 | +84.0% | +92.7% |
| 2024 | +18.0% | +12.6% |
| 2025 | +4.4% | -18.3% |
| 2026 | +35.4% | -31.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GFF and SMID good diversifiers for each other?
Reasonably. At 0.45, GFF and SMID keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between GFF and SMID?
The GFF/SMID correlation stands at 0.45 on a 3-year window (1 year: 0.39, 5 years: 0.33), computed from weekly returns as of 2026-08-27.
Is SMID a good diversifier for GFF?
Reasonably. At 0.45, GFF and SMID keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.45 mean?
On the −1 to +1 scale, 0.45 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/gff-vs-smid.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gff-vs-smid/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: GFF correlations · SMID correlations
