SPY vs YHGJ: Correlation
SPDR S&P 500 ETF Trust (SPY) and Yunhong Green CTI Ltd. (YHGJ) show a negative relationship: their 3-year correlation of weekly returns is -0.11.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and YHGJ?
Over the past 3 years, SPY and YHGJ moved with a correlation of -0.11, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.04) sits close to the 3-year figure. Over 5 years the correlation is -0.02, and the annualized covariance of weekly returns is -143.6 %².
Within SPY's tracked universe of 4755 assets, YHGJ comes in at #4740 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months SPY outperformed by 65.5 percentage points (+20.6% for SPY against -44.9% for YHGJ). Note the risk asymmetry: YHGJ runs 6.2 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.
SPY vs YHGJ: side by side
| SPY (SPDR S&P 500 ETF Trust) | YHGJ (Yunhong Green CTI Ltd.) | |
|---|---|---|
| 1-year return | +20.6% | -44.9% |
| 5-year return | +82.4% | -85.6% |
| Volatility (ann.) | 14.5% | 90.5% |
| Beta vs S&P 500 | 1.00 | -0.69 |
| Max drawdown (3Y) | -18.8% | -91.7% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 1.01% | 0.00% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
SPY, State Street Investment Management's Large Blend fund, carries $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | SPY | YHGJ |
|---|---|---|
| 2022 | -18.2% | -12.6% |
| 2023 | +26.2% | +105.8% |
| 2024 | +24.9% | -74.3% |
| 2025 | +17.7% | -34.0% |
| 2026 | +13.7% | -19.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and YHGJ good diversifiers for each other?
Yes: at -0.11, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between SPY and YHGJ?
The SPY/YHGJ correlation stands at -0.11 on a 3-year window (1 year: -0.04, 5 years: -0.02), computed from weekly returns as of 2026-08-27.
Is YHGJ a good diversifier for SPY?
Yes: at -0.11, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.11 mean?
A reading of -0.11 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/spy-vs-yhgj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/spy-vs-yhgj/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SPY correlations · YHGJ correlations
