COCH vs VANI: Correlation
Envoy Medical, Inc. (COCH) and Vivani Medical, Inc. (VANI) show a very strong relationship: their 3-year correlation of weekly returns is 0.80.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COCH and VANI?
Over the past 3 years, COCH and VANI moved with a correlation of 0.80, which is very strong, meaning they move nearly in lockstep. The past 12 months show a weaker link (0.24) than the 3-year average (0.80). Over 5 years the correlation is 0.71, and the annualized covariance of weekly returns is 25383.4 %².
VANI is one of the assets that tracks COCH most closely: it ranks #1 out of the 10 assets we track against COCH. Their recent paths diverged sharply: over the last 12 months VANI outperformed by 52.3 percentage points (-37.5% for COCH against +14.8% for VANI). Risk is not evenly split, since COCH carries 2.1 times the volatility of the other side.
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.
COCH vs VANI: side by side
| COCH (Envoy Medical, Inc.) | VANI (Vivani Medical, Inc.) | |
|---|---|---|
| 1-year return | -37.5% | +14.8% |
| 5-year return | -92.4% | -87.4% |
| Volatility (ann.) | 256.3% | 123.8% |
| Beta vs S&P 500 | 0.52 | 1.29 |
| Max drawdown (3Y) | -96.3% | -77.8% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | COCH | VANI |
|---|---|---|
| 2022 | +2.9% | -82.6% |
| 2023 | -81.9% | +20.0% |
| 2024 | -21.0% | +13.7% |
| 2025 | -53.8% | +6.0% |
| 2026 | +10.6% | +13.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COCH and VANI good diversifiers for each other?
No: a correlation of 0.80 means COCH and VANI tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between COCH and VANI?
The COCH/VANI correlation stands at 0.80 on a 3-year window (1 year: 0.24, 5 years: 0.71), computed from weekly returns as of 2026-08-27.
Is VANI a good diversifier for COCH?
No: a correlation of 0.80 means COCH and VANI tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.80 mean?
On the −1 to +1 scale, 0.80 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: COCH correlations · VANI correlations
