RBKB vs ZJYL: Correlation
How closely do Rhinebeck Bancorp, Inc. (RBKB) and JIN MEDICAL INTERNATIONAL LTD. - Class A (ZJYL) trade together? Their weekly returns over three years give a correlation of 0.35, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RBKB and ZJYL?
Over the past 3 years, RBKB and ZJYL moved with a correlation of 0.35, which is moderate. The link has loosened recently: the 1-year correlation (0.18) runs below the 3-year figure (0.35). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 2771.9 %².
ZJYL is one of the assets that tracks RBKB most closely: it ranks #2 out of the 13 assets we track against RBKB. Their recent paths diverged sharply: over the last 12 months RBKB outperformed by 117.2 percentage points (+31.5% for RBKB against -85.7% for ZJYL). One caveat on sizing: ZJYL is 9.2 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.
RBKB vs ZJYL: side by side
| RBKB (Rhinebeck Bancorp, Inc.) | ZJYL (JIN MEDICAL INTERNATIONAL LTD. - Class A) | |
|---|---|---|
| 1-year return | +31.5% | -85.7% |
| 5-year return | +64.9% | n/a |
| Volatility (ann.) | 29.5% | 270.7% |
| Beta vs S&P 500 | 0.08 | 1.23 |
| Max drawdown (3Y) | -30.0% | -99.3% |
| Market cap | $0.2B | $0.2B |
| P/E (trailing) | 14.0 | 13.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RBKB | ZJYL |
|---|---|---|
| 2022 | -14.5% | – |
| 2023 | -11.6% | – |
| 2024 | +20.1% | -93.7% |
| 2025 | +24.3% | -71.7% |
| 2026 | +46.8% | -46.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RBKB and ZJYL good diversifiers for each other?
Reasonably. At 0.35, RBKB and ZJYL keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between RBKB and ZJYL?
As of 2026-08-27, the correlation of weekly returns between RBKB and ZJYL is 0.35 over 3 years, 0.18 over 1 year and n/a over 5 years.
Is ZJYL a good diversifier for RBKB?
Reasonably. At 0.35, RBKB and ZJYL keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.35 mean?
On the −1 to +1 scale, 0.35 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/rbkb-vs-zjyl.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rbkb-vs-zjyl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: RBKB correlations · ZJYL correlations
