EBAY vs YHGJ: Correlation
Measured on weekly returns over the past three years, eBay Inc. (EBAY) and Yunhong Green CTI Ltd. (YHGJ) carry a correlation of -0.15, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EBAY and YHGJ?
On 3 years of weekly data the EBAY/YHGJ correlation comes out at -0.15, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.03) than the 3-year average (-0.15). The 5-year figure is 0.03, and annualized covariance runs at -393.5 %².
Within EBAY's tracked universe of 33 assets, YHGJ comes in at #27 by 3-year correlation. Correlation aside, the last 12 months split them widely, with EBAY ahead by 55.5 points (+10.6% versus -44.9%). One caveat on sizing: YHGJ is 3.1 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.
EBAY vs YHGJ: side by side
| EBAY (eBay Inc.) | YHGJ (Yunhong Green CTI Ltd.) | |
|---|---|---|
| 1-year return | +10.6% | -44.9% |
| 5-year return | +43.9% | -85.6% |
| Volatility (ann.) | 28.9% | 90.5% |
| Beta vs S&P 500 | 0.58 | -0.69 |
| Max drawdown (3Y) | -20.7% | -91.7% |
| Market cap | $45.5B | – |
| P/E (trailing) | 21.9 | – |
| Dividend yield | 1.15% | 0.00% |
| Sector / category | Consumer Discretionary | US Listed |
Year-by-year returns
| Year | EBAY | YHGJ |
|---|---|---|
| 2022 | -36.5% | -12.6% |
| 2023 | +7.7% | +105.8% |
| 2024 | +44.8% | -74.3% |
| 2025 | +42.7% | -34.0% |
| 2026 | +18.1% | -19.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EBAY and YHGJ good diversifiers for each other?
Yes. With a correlation of -0.15, EBAY and YHGJ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between EBAY and YHGJ?
Using weekly returns as of 2026-08-27: -0.15 over 3 years, with -0.03 over the last year and 0.03 over 5 years.
Is YHGJ a good diversifier for EBAY?
Yes. With a correlation of -0.15, EBAY and YHGJ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.15 mean?
A reading of -0.15 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/ebay-vs-yhgj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ebay-vs-yhgj/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EBAY correlations · YHGJ correlations
