COGT vs ELTK: Correlation
How closely do Cogent Biosciences, Inc. (COGT) and Eltek Ltd. (ELTK) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COGT and ELTK?
Across a 3-year window, the weekly returns of COGT and ELTK correlate at -0.22, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.07) runs above the 3-year figure (-0.22). Stretching to 5 years gives -0.09, with an annualized covariance of -1196.5 %².
Among the 13 assets we track against COGT, ELTK sits near the bottom by co-movement, at rank #11. Correlation aside, the last 12 months split them widely, with COGT ahead by 222.6 points (+199.8% versus -22.8%). Note the risk asymmetry: COGT runs 2.1 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.
COGT vs ELTK: side by side
| COGT (Cogent Biosciences, Inc.) | ELTK (Eltek Ltd.) | |
|---|---|---|
| 1-year return | +199.8% | -22.8% |
| 5-year return | +355.1% | +27.7% |
| Volatility (ann.) | 106.0% | 50.9% |
| Beta vs S&P 500 | 0.78 | 0.40 |
| Max drawdown (3Y) | -69.0% | -65.7% |
| Market cap | $6.4B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | COGT | ELTK |
|---|---|---|
| 2022 | +34.7% | +15.0% |
| 2023 | -49.1% | +244.5% |
| 2024 | +32.7% | -20.7% |
| 2025 | +355.4% | -20.0% |
| 2026 | +4.4% | -8.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COGT and ELTK good diversifiers for each other?
Yes. With a correlation of -0.22, COGT and ELTK have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between COGT and ELTK?
As of 2026-08-27, the correlation of weekly returns between COGT and ELTK is -0.22 over 3 years, 0.07 over 1 year and -0.09 over 5 years.
Is ELTK a good diversifier for COGT?
Yes. With a correlation of -0.22, COGT and ELTK have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.22 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cogt-vs-eltk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cogt-vs-eltk/)
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Related comparisons
Hubs: COGT correlations · ELTK correlations
