AAPL vs YHGJ: Correlation
How closely do Apple Inc. (AAPL) and Yunhong Green CTI Ltd. (YHGJ) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AAPL and YHGJ?
Over the past 3 years, AAPL and YHGJ moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.26) sits close to the 3-year figure. Over 5 years the correlation is -0.08, and the annualized covariance of weekly returns is -482.2 %².
Among the 32 assets we track against AAPL, YHGJ ranks #26 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months AAPL outperformed by 81.9 percentage points (+37.0% for AAPL against -44.9% for YHGJ). Note the risk asymmetry: YHGJ runs 3.3 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.
AAPL vs YHGJ: side by side
| AAPL (Apple Inc.) | YHGJ (Yunhong Green CTI Ltd.) | |
|---|---|---|
| 1-year return | +37.0% | -44.9% |
| 5-year return | +110.6% | -85.6% |
| Volatility (ann.) | 27.2% | 90.5% |
| Beta vs S&P 500 | 1.06 | -0.69 |
| Max drawdown (3Y) | -33.4% | -91.7% |
| Market cap | $4,591.0B | – |
| P/E (trailing) | 36.1 | – |
| Dividend yield | 0.33% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | AAPL | YHGJ |
|---|---|---|
| 2022 | -26.4% | -12.6% |
| 2023 | +49.0% | +105.8% |
| 2024 | +30.7% | -74.3% |
| 2025 | +9.1% | -34.0% |
| 2026 | +16.0% | -19.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AAPL and YHGJ good diversifiers for each other?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between AAPL and YHGJ?
As of 2026-08-27, the correlation of weekly returns between AAPL and YHGJ is -0.20 over 3 years, -0.26 over 1 year and -0.08 over 5 years.
Is YHGJ a good diversifier for AAPL?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 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/aapl-vs-yhgj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aapl-vs-yhgj/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AAPL correlations · YHGJ correlations
