DXCM vs RGC: Correlation
Dexcom (DXCM) and Regencell Bioscience Holdings Limited (RGC) show a negative relationship: their 3-year correlation of weekly returns is -0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DXCM and RGC?
Across a 3-year window, the weekly returns of DXCM and RGC correlate at -0.17, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at 0.02 versus -0.17 over 3 years. Stretching to 5 years gives -0.13, with an annualized covariance of -3554.1 %².
Within DXCM's tracked universe of 28 assets, RGC comes in at #21 by 3-year correlation. The last year tells two different stories: DXCM led by 78.1 percentage points, +16.9% for DXCM against -61.2% for RGC. Note the risk asymmetry: RGC runs 9.4 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.
DXCM vs RGC: side by side
| DXCM (Dexcom) | RGC (Regencell Bioscience Holdings Limited) | |
|---|---|---|
| 1-year return | +16.9% | -61.2% |
| 5-year return | -31.5% | +626.3% |
| Volatility (ann.) | 46.7% | 441.0% |
| Beta vs S&P 500 | 1.02 | -2.00 |
| Max drawdown (3Y) | -61.0% | -93.9% |
| Market cap | $33.7B | – |
| P/E (trailing) | 35.2 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | DXCM | RGC |
|---|---|---|
| 2022 | -15.6% | -12.4% |
| 2023 | +9.6% | -62.4% |
| 2024 | -37.3% | -53.0% |
| 2025 | -14.7% | +16053.8% |
| 2026 | +34.5% | -73.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DXCM and RGC good diversifiers for each other?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between DXCM and RGC?
The DXCM/RGC correlation stands at -0.17 on a 3-year window (1 year: 0.02, 5 years: -0.13), computed from weekly returns as of 2026-08-27.
Is RGC a good diversifier for DXCM?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.17 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/dxcm-vs-rgc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/dxcm-vs-rgc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: DXCM correlations · RGC correlations
