BGMS vs CDNA: Correlation
How closely do Bio Green Med Solution, Inc. (BGMS) and CareDx, Inc. (CDNA) trade together? Their weekly returns over three years give a correlation of -0.28, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BGMS and CDNA?
On 3 years of weekly data the BGMS/CDNA correlation comes out at -0.28, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.01) runs above the 3-year figure (-0.28). The 5-year figure is -0.16, and annualized covariance runs at -4748.9 %².
Among the 15 assets we track against BGMS, CDNA sits near the bottom by co-movement, at rank #13. Their recent paths diverged sharply: over the last 12 months CDNA outperformed by 383.0 percentage points (-89.0% for BGMS against +294.0% for CDNA). Note the risk asymmetry: BGMS runs 2.4 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.
BGMS vs CDNA: side by side
| BGMS (Bio Green Med Solution, Inc.) | CDNA (CareDx, Inc.) | |
|---|---|---|
| 1-year return | -89.0% | +294.0% |
| 5-year return | -100.0% | -35.0% |
| Volatility (ann.) | 203.4% | 83.5% |
| Beta vs S&P 500 | 0.91 | 1.46 |
| Max drawdown (3Y) | -100.0% | -66.0% |
| Market cap | – | $2.7B |
| P/E (trailing) | – | 24.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BGMS | CDNA |
|---|---|---|
| 2022 | -82.8% | -74.9% |
| 2023 | -73.4% | +5.2% |
| 2024 | -85.8% | +78.4% |
| 2025 | -96.6% | -12.0% |
| 2026 | -39.8% | +177.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BGMS and CDNA good diversifiers for each other?
Yes. With a correlation of -0.28, BGMS and CDNA have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BGMS and CDNA?
As of 2026-08-27, the correlation of weekly returns between BGMS and CDNA is -0.28 over 3 years, 0.01 over 1 year and -0.16 over 5 years.
Is CDNA a good diversifier for BGMS?
Yes. With a correlation of -0.28, BGMS and CDNA have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.28 mean?
On the −1 to +1 scale, -0.28 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.
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Related comparisons
Hubs: BGMS correlations · CDNA correlations
