HYFM vs YJ: Correlation
How closely do Hydrofarm Holdings Group, Inc. (HYFM) and Yunji Inc. - American Depository Shares (YJ) trade together? Their weekly returns over three years give a correlation of 0.56, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HYFM and YJ?
Over the past 3 years, HYFM and YJ moved with a correlation of 0.56, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.72 versus 0.56 over 3 years. Over 5 years the correlation is 0.46, and the annualized covariance of weekly returns is 11582.1 %².
Few assets follow HYFM as closely as YJ, which ranks #2 of 19 tracked partners. Their recent paths diverged sharply: over the last 12 months YJ outperformed by 163.8 percentage points (-80.5% for HYFM against +83.3% for YJ).
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.
HYFM vs YJ: side by side
| HYFM (Hydrofarm Holdings Group, Inc.) | YJ (Yunji Inc. - American Depository Shares) | |
|---|---|---|
| 1-year return | -80.5% | +83.3% |
| 5-year return | -99.8% | -89.8% |
| Volatility (ann.) | 148.0% | 139.4% |
| Beta vs S&P 500 | 2.71 | 0.56 |
| Max drawdown (3Y) | -96.6% | -73.6% |
| Market cap | – | – |
| P/E (trailing) | – | 1.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | HYFM | YJ |
|---|---|---|
| 2022 | -94.5% | +30.7% |
| 2023 | -40.8% | -91.3% |
| 2024 | -36.8% | -43.4% |
| 2025 | -74.0% | -26.7% |
| 2026 | -41.1% | +170.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HYFM and YJ good diversifiers for each other?
Only partially. A correlation of 0.56 means HYFM and YJ 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 HYFM and YJ?
Using weekly returns as of 2026-08-27: 0.56 over 3 years, with 0.72 over the last year and 0.46 over 5 years.
Is YJ a good diversifier for HYFM?
Only partially. A correlation of 0.56 means HYFM and YJ share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.56 mean?
A reading of 0.56 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/hyfm-vs-yj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/hyfm-vs-yj/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: HYFM correlations · YJ correlations
