ESOA vs ZJYL: Correlation
How closely do Energy Services of America Corporation (ESOA) and JIN MEDICAL INTERNATIONAL LTD. - Class A (ZJYL) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ESOA and ZJYL?
Across a 3-year window, the weekly returns of ESOA and ZJYL correlate at 0.42, moderate. The past 12 months show a weaker link (-0.07) than the 3-year average (0.42). Stretching to 5 years gives n/a, with an annualized covariance of 7954.8 %².
ZJYL is one of the assets that tracks ESOA most closely: it ranks #1 out of the 11 assets we track against ESOA. Correlation aside, the last 12 months split them widely, with ESOA ahead by 99.7 points (+14.0% versus -85.7%). Risk is not evenly split, since ZJYL carries 3.9 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.
ESOA vs ZJYL: side by side
| ESOA (Energy Services of America Corporation) | ZJYL (JIN MEDICAL INTERNATIONAL LTD. - Class A) | |
|---|---|---|
| 1-year return | +14.0% | -85.7% |
| 5-year return | +517.2% | n/a |
| Volatility (ann.) | 70.1% | 270.7% |
| Beta vs S&P 500 | 0.86 | 1.23 |
| Max drawdown (3Y) | -57.4% | -99.3% |
| Market cap | $0.2B | $0.2B |
| P/E (trailing) | 19.1 | 13.1 |
| Dividend yield | 1.13% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ESOA | ZJYL |
|---|---|---|
| 2022 | -22.1% | – |
| 2023 | +141.3% | – |
| 2024 | +111.4% | -93.7% |
| 2025 | -34.4% | -71.7% |
| 2026 | +43.6% | -46.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ESOA and ZJYL good diversifiers for each other?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ESOA and ZJYL?
As of 2026-08-27, the correlation of weekly returns between ESOA and ZJYL is 0.42 over 3 years, -0.07 over 1 year and n/a over 5 years.
Is ZJYL a good diversifier for ESOA?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.42 mean?
A reading of 0.42 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/esoa-vs-zjyl.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/esoa-vs-zjyl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ESOA correlations · ZJYL correlations
