ONT vs STAA: Correlation
How closely do Onterris, Inc. (ONT) and STAAR Surgical Company (STAA) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ONT and STAA?
Across a 3-year window, the weekly returns of ONT and STAA correlate at 0.38, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.26 versus 0.38 over 3 years. Stretching to 5 years gives 0.37, with an annualized covariance of 1482.0 %².
Among the 13 assets we track against ONT, STAA ranks #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months STAA outperformed by 27.0 percentage points (-45.6% for ONT against -18.6% for STAA).
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.
ONT vs STAA: side by side
| ONT (Onterris, Inc.) | STAA (STAAR Surgical Company) | |
|---|---|---|
| 1-year return | -45.6% | -18.6% |
| 5-year return | -66.3% | -85.0% |
| Volatility (ann.) | 63.4% | 61.9% |
| Beta vs S&P 500 | 1.17 | 0.90 |
| Max drawdown (3Y) | -78.4% | -71.1% |
| Market cap | $0.6B | $1.1B |
| P/E (trailing) | – | 279.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ONT | STAA |
|---|---|---|
| 2022 | -37.0% | -46.8% |
| 2023 | -27.6% | -35.7% |
| 2024 | -42.3% | -22.2% |
| 2025 | +33.9% | -4.9% |
| 2026 | -34.2% | -3.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ONT and STAA good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ONT and STAA?
As of 2026-08-27, the correlation of weekly returns between ONT and STAA is 0.38 over 3 years, 0.26 over 1 year and 0.37 over 5 years.
Is STAA a good diversifier for ONT?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 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: ONT correlations · STAA correlations
