BTAI vs STAA: Correlation
Measured on weekly returns over the past three years, BioXcel Therapeutics, Inc. (BTAI) and STAAR Surgical Company (STAA) carry a correlation of 0.45, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BTAI and STAA?
On 3 years of weekly data the BTAI/STAA correlation comes out at 0.45, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.05 versus 0.45 over 3 years. The 5-year figure is 0.37, and annualized covariance runs at 4540.5 %².
Few assets follow BTAI as closely as STAA, which ranks #3 of 11 tracked partners. Their recent paths diverged sharply: over the last 12 months STAA outperformed by 63.2 percentage points (-81.8% for BTAI against -18.6% for STAA). One caveat on sizing: BTAI is 2.6 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.
BTAI vs STAA: side by side
| BTAI (BioXcel Therapeutics, Inc.) | STAA (STAAR Surgical Company) | |
|---|---|---|
| 1-year return | -81.8% | -18.6% |
| 5-year return | -99.8% | -85.0% |
| Volatility (ann.) | 162.0% | 61.9% |
| Beta vs S&P 500 | 2.19 | 0.90 |
| Max drawdown (3Y) | -99.2% | -71.1% |
| Market cap | – | $1.1B |
| P/E (trailing) | – | 279.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BTAI | STAA |
|---|---|---|
| 2022 | +5.7% | -46.8% |
| 2023 | -86.3% | -35.7% |
| 2024 | -87.3% | -22.2% |
| 2025 | -73.3% | -4.9% |
| 2026 | -55.1% | -3.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BTAI and STAA good diversifiers for each other?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BTAI and STAA?
The BTAI/STAA correlation stands at 0.45 on a 3-year window (1 year: 0.05, 5 years: 0.37), computed from weekly returns as of 2026-08-27.
Is STAA a good diversifier for BTAI?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.45 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: BTAI correlations · STAA correlations
