AVIR vs BDSX: Correlation
Atea Pharmaceuticals, Inc. (AVIR) and Biodesix, Inc. (BDSX) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AVIR and BDSX?
On 3 years of weekly data the AVIR/BDSX correlation comes out at 0.39, moderate. Little has changed lately, as the 1-year reading of 0.41 lands near the 3-year figure. The 5-year figure is 0.26, and annualized covariance runs at 1746.4 %².
Among the 13 assets we track against AVIR, BDSX ranks #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with BDSX ahead by 151.6 points (+51.4% versus +203.0%). One caveat on sizing: BDSX is 1.9 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.
AVIR vs BDSX: side by side
| AVIR (Atea Pharmaceuticals, Inc.) | BDSX (Biodesix, Inc.) | |
|---|---|---|
| 1-year return | +51.4% | +203.0% |
| 5-year return | -82.1% | -84.0% |
| Volatility (ann.) | 48.3% | 92.6% |
| Beta vs S&P 500 | 0.73 | 0.57 |
| Max drawdown (3Y) | -44.1% | -89.7% |
| Market cap | $0.4B | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AVIR | BDSX |
|---|---|---|
| 2022 | -46.2% | -56.5% |
| 2023 | -36.6% | -20.0% |
| 2024 | +9.8% | -16.8% |
| 2025 | +6.6% | -77.8% |
| 2026 | +52.7% | +318.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AVIR and BDSX good diversifiers for each other?
Reasonably. At 0.39, AVIR and BDSX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between AVIR and BDSX?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.41 over the last year and 0.26 over 5 years.
Is BDSX a good diversifier for AVIR?
Reasonably. At 0.39, AVIR and BDSX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 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.
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Related comparisons
Hubs: AVIR correlations · BDSX correlations
