UNP vs YHGJ: Correlation
Measured on weekly returns over the past three years, Union Pacific Corporation (UNP) and Yunhong Green CTI Ltd. (YHGJ) carry a correlation of -0.19, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are UNP and YHGJ?
Across a 3-year window, the weekly returns of UNP and YHGJ correlate at -0.19, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.34) runs below the 3-year figure (-0.19). Stretching to 5 years gives 0.01, with an annualized covariance of -348.5 %².
Out of 33 assets tracked against UNP, YHGJ lands near the bottom at #29. Correlation aside, the last 12 months split them widely, with UNP ahead by 87.3 points (+42.4% versus -44.9%). Note the risk asymmetry: YHGJ runs 4.4 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
UNP vs YHGJ: side by side
| UNP (Union Pacific Corporation) | YHGJ (Yunhong Green CTI Ltd.) | |
|---|---|---|
| 1-year return | +42.4% | -44.9% |
| 5-year return | +56.5% | -85.6% |
| Volatility (ann.) | 20.6% | 90.5% |
| Beta vs S&P 500 | 0.56 | -0.69 |
| Max drawdown (3Y) | -17.8% | -91.7% |
| Market cap | $182.8B | – |
| P/E (trailing) | 25.1 | – |
| Dividend yield | 1.78% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | UNP | YHGJ |
|---|---|---|
| 2022 | -15.9% | -12.6% |
| 2023 | +21.6% | +105.8% |
| 2024 | -5.1% | -74.3% |
| 2025 | +3.9% | -34.0% |
| 2026 | +34.4% | -19.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are UNP and YHGJ good diversifiers for each other?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between UNP and YHGJ?
As of 2026-08-27, the correlation of weekly returns between UNP and YHGJ is -0.19 over 3 years, -0.34 over 1 year and 0.01 over 5 years.
Is YHGJ a good diversifier for UNP?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.19 mean?
On the −1 to +1 scale, -0.19 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/unp-vs-yhgj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/unp-vs-yhgj/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: UNP correlations · YHGJ correlations
