PFE vs YHGJ: Correlation
Pfizer (PFE) and Yunhong Green CTI Ltd. (YHGJ) show a negative relationship: their 3-year correlation of weekly returns is -0.19.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PFE and YHGJ?
On 3 years of weekly data the PFE/YHGJ correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.16 over 1 year against -0.19 over 3. The 5-year figure is -0.13, and annualized covariance runs at -409.1 %².
Among the 32 assets we track against PFE, YHGJ sits near the bottom by co-movement, at rank #30. Their recent paths diverged sharply: over the last 12 months PFE outperformed by 64.5 percentage points (+19.6% for PFE against -44.9% for YHGJ). Risk is not evenly split, since YHGJ carries 3.8 times the volatility of the other side.
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.
PFE vs YHGJ: side by side
| PFE (Pfizer) | YHGJ (Yunhong Green CTI Ltd.) | |
|---|---|---|
| 1-year return | +19.6% | -44.9% |
| 5-year return | -21.9% | -85.6% |
| Volatility (ann.) | 23.8% | 90.5% |
| Beta vs S&P 500 | 0.40 | -0.69 |
| Max drawdown (3Y) | -34.8% | -91.7% |
| Market cap | $159.7B | – |
| P/E (trailing) | 37.4 | – |
| Dividend yield | 6.08% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | PFE | YHGJ |
|---|---|---|
| 2022 | -10.4% | -12.6% |
| 2023 | -41.3% | +105.8% |
| 2024 | -2.2% | -74.3% |
| 2025 | +0.6% | -34.0% |
| 2026 | +18.3% | -19.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PFE and YHGJ good diversifiers for each other?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
FAQ
What is the correlation between PFE and YHGJ?
The PFE/YHGJ correlation stands at -0.19 on a 3-year window (1 year: -0.16, 5 years: -0.13), computed from weekly returns as of 2026-08-27.
Is YHGJ a good diversifier for PFE?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
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/pfe-vs-yhgj.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/pfe-vs-yhgj/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PFE correlations · YHGJ correlations
