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COCH vs JANX: Correlation

How closely do Envoy Medical, Inc. (COCH) and Janux Therapeutics, Inc. (JANX) trade together? Their weekly returns over three years give a correlation of 0.71, which is strong.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.71
strong
Correlation (1Y)
0.20
last 12 months
Correlation (5Y)
0.64
long-run
Ann. covariance
26963.4
%² · weekly, annualized

How correlated are COCH and JANX?

On 3 years of weekly data the COCH/JANX correlation comes out at 0.71, strong. Lately the two have drifted apart, with the 1-year correlation at 0.20 versus 0.71 over 3 years. The 5-year figure is 0.64, and annualized covariance runs at 26963.4 %².

Few assets follow COCH as closely as JANX, which ranks #3 of 10 tracked partners. The last year tells two different stories: JANX led by 17.9 percentage points, -37.5% for COCH against -19.6% for JANX. Note the risk asymmetry: COCH runs 1.7 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.

COCH vs JANX: side by side

COCH (Envoy Medical, Inc.)JANX (Janux Therapeutics, Inc.)
1-year return-37.5%-19.6%
5-year return-92.4%-42.6%
Volatility (ann.)256.3%148.0%
Beta vs S&P 5000.521.76
Max drawdown (3Y)-96.3%-81.8%
Market cap$0.1B$1.1B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: JANX -81.8% vs -96.3%Higher 5y return: JANX -42.6% vs -92.4%
-64%0%+42%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. COCH · JANX

Year-by-year returns

YearCOCHJANX
2022+2.9%-33.2%
2023-81.9%-18.5%
2024-21.0%+399.0%
2025-53.8%-74.2%
2026+10.6%+36.1%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are COCH and JANX good diversifiers for each other?

To a limited degree. At 0.71 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

FAQ

What is the correlation between COCH and JANX?

As of 2026-08-27, the correlation of weekly returns between COCH and JANX is 0.71 over 3 years, 0.20 over 1 year and 0.64 over 5 years.

Is JANX a good diversifier for COCH?

To a limited degree. At 0.71 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

What does a correlation of 0.71 mean?

On the −1 to +1 scale, 0.71 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.

Use this data

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/coch-vs-janx.json

COCH vs JANX: 3-year weekly correlation 0.71COCH vs JANX0.71

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Related comparisons

Hubs: COCH correlations · JANX correlations