COHN vs IRWD: Correlation
Cohen & Company Inc. (COHN) and Ironwood Pharmaceuticals, Inc. (IRWD) show a moderate relationship: their 3-year correlation of weekly returns is 0.38.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COHN and IRWD?
Across a 3-year window, the weekly returns of COHN and IRWD correlate at 0.38, moderate. The past 12 months show a tighter link (0.63) than the 3-year average (0.38). Stretching to 5 years gives 0.28, with an annualized covariance of 2747.8 %².
IRWD is one of the assets that tracks COHN most closely: it ranks #2 out of the 10 assets we track against COHN. Correlation aside, the last 12 months split them widely, with IRWD ahead by 229.4 points (+7.1% versus +236.5%).
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.
COHN vs IRWD: side by side
| COHN (Cohen & Company Inc.) | IRWD (Ironwood Pharmaceuticals, Inc.) | |
|---|---|---|
| 1-year return | +7.1% | +236.5% |
| 5-year return | -2.6% | -68.1% |
| Volatility (ann.) | 81.7% | 88.3% |
| Beta vs S&P 500 | 0.90 | 0.81 |
| Max drawdown (3Y) | -62.6% | -96.3% |
| Market cap | – | $0.7B |
| P/E (trailing) | 2.3 | 5.4 |
| Dividend yield | 9.07% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | COHN | IRWD |
|---|---|---|
| 2022 | -36.7% | +6.3% |
| 2023 | -9.7% | -7.7% |
| 2024 | +73.4% | -61.3% |
| 2025 | +149.5% | -23.9% |
| 2026 | -44.8% | +25.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COHN and IRWD 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 COHN and IRWD?
As of 2026-08-27, the correlation of weekly returns between COHN and IRWD is 0.38 over 3 years, 0.63 over 1 year and 0.28 over 5 years.
Is IRWD a good diversifier for COHN?
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?
A reading of 0.38 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cohn-vs-irwd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cohn-vs-irwd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: COHN correlations · IRWD correlations
