COMP vs IWM: Correlation
How closely do Compass, Inc. (COMP) and iShares Russell 2000 ETF (IWM) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COMP and IWM?
Over the past 3 years, COMP and IWM moved with a correlation of 0.53, which is moderate. Little has changed lately, as the 1-year reading of 0.57 lands near the 3-year figure. Over 5 years the correlation is 0.56, and the annualized covariance of weekly returns is 655.4 %².
Among the 14 assets we track against COMP, IWM ranks #5 by 3-year correlation. The trailing year gives IWM the advantage: +19.6% versus +28.4%, a 8.8-point spread. Risk is not evenly split, since COMP carries 3.1 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.
COMP vs IWM: side by side
| COMP (Compass, Inc.) | IWM (iShares Russell 2000 ETF) | |
|---|---|---|
| 1-year return | +19.6% | +28.4% |
| 5-year return | -33.6% | +41.5% |
| Volatility (ann.) | 61.9% | 19.8% |
| Beta vs S&P 500 | 1.54 | 1.06 |
| Max drawdown (3Y) | -50.8% | -27.5% |
| Market cap | $8.5B | – |
| P/E (trailing) | 185.0 | – |
| Dividend yield | 0.00% | 0.91% |
| Expense ratio | – | 0.19% |
| Assets under management | – | $80.1B |
| Sector / category | US Listed | ETF · US Small & Mid Cap |
IWM, iShares's Small Blend fund, carries $80.1B under management, 1757 holdings, a 0.19% expense ratio, a 0.91% trailing dividend yield.
Year-by-year returns
| Year | COMP | IWM |
|---|---|---|
| 2022 | -74.4% | -20.5% |
| 2023 | +61.4% | +16.8% |
| 2024 | +55.6% | +11.4% |
| 2025 | +80.7% | +12.7% |
| 2026 | +5.0% | +22.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
COMP represents 0.26% of IWM's portfolio, so part of any move in IWM is COMP itself, and the correlation between them is partly mechanical.
Are COMP and IWM good diversifiers for each other?
To a limited degree. At 0.53 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 COMP and IWM?
As of 2026-08-27, the correlation of weekly returns between COMP and IWM is 0.53 over 3 years, 0.57 over 1 year and 0.56 over 5 years.
Is IWM a good diversifier for COMP?
To a limited degree. At 0.53 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 0.53 mean?
A reading of 0.53 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/comp-vs-iwm.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/comp-vs-iwm/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: COMP correlations · IWM correlations
