GPAT vs HYFM: Correlation
Measured on weekly returns over the past three years, GP-Act III Acquisition Corp. - Class A (GPAT) and Hydrofarm Holdings Group, Inc. (HYFM) carry a correlation of 0.48, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GPAT and HYFM?
Across a 3-year window, the weekly returns of GPAT and HYFM correlate at 0.48, moderate. The past 12 months show a tighter link (0.59) than the 3-year average (0.48). Stretching to 5 years gives n/a, with an annualized covariance of 255.1 %².
HYFM is one of the assets that tracks GPAT most closely: it ranks #1 out of the 22 assets we track against GPAT. Correlation aside, the last 12 months split them widely, with GPAT ahead by 83.9 points (+3.4% versus -80.5%). One caveat on sizing: HYFM is 46.2 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
GPAT vs HYFM: side by side
| GPAT (GP-Act III Acquisition Corp. - Class A) | HYFM (Hydrofarm Holdings Group, Inc.) | |
|---|---|---|
| 1-year return | +3.4% | -80.5% |
| 5-year return | n/a | -99.8% |
| Volatility (ann.) | 3.2% | 148.0% |
| Beta vs S&P 500 | 0.05 | 2.71 |
| Max drawdown (3Y) | -2.1% | -96.6% |
| Market cap | $0.2B | – |
| P/E (trailing) | 44.6 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GPAT | HYFM |
|---|---|---|
| 2022 | – | -94.5% |
| 2023 | – | -40.8% |
| 2024 | – | -36.8% |
| 2025 | +5.4% | -74.0% |
| 2026 | +2.2% | -41.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GPAT and HYFM good diversifiers for each other?
Reasonably. At 0.48, GPAT and HYFM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between GPAT and HYFM?
As of 2026-08-27, the correlation of weekly returns between GPAT and HYFM is 0.48 over 3 years, 0.59 over 1 year and n/a over 5 years.
Is HYFM a good diversifier for GPAT?
Reasonably. At 0.48, GPAT and HYFM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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/gpat-vs-hyfm.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gpat-vs-hyfm/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: GPAT correlations · HYFM correlations
