IWM vs JILL: Correlation
Measured on weekly returns over the past three years, iShares Russell 2000 ETF (IWM) and J. Jill, Inc. (JILL) carry a correlation of 0.48, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IWM and JILL?
Over the past 3 years, IWM and JILL moved with a correlation of 0.48, which is moderate. Little has changed lately, as the 1-year reading of 0.40 lands near the 3-year figure. Over 5 years the correlation is 0.43, and the annualized covariance of weekly returns is 451.6 %².
Within IWM's tracked universe of 320 assets, JILL comes in at #252 by 3-year correlation. Over the last 12 months IWM came out ahead by 9.6 percentage points (+28.4% against +18.8%). Note the risk asymmetry: JILL runs 2.4 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.
IWM vs JILL: side by side
| IWM (iShares Russell 2000 ETF) | JILL (J. Jill, Inc.) | |
|---|---|---|
| 1-year return | +28.4% | +18.8% |
| 5-year return | +41.5% | -1.2% |
| Volatility (ann.) | 19.8% | 47.4% |
| Beta vs S&P 500 | 1.06 | 1.17 |
| Max drawdown (3Y) | -27.5% | -71.5% |
| Market cap | – | $0.3B |
| P/E (trailing) | – | 14.5 |
| Dividend yield | 0.91% | 1.66% |
| Expense ratio | 0.19% | – |
| Assets under management | $80.1B | – |
| Sector / category | ETF · US Small & Mid Cap | US Listed |
On the fund side, IWM sits in the Small Blend category at iShares, with $80.1B under management, 1757 holdings, a 0.19% expense ratio, a 0.91% trailing dividend yield.
Year-by-year returns
| Year | IWM | JILL |
|---|---|---|
| 2022 | -20.5% | +29.3% |
| 2023 | +16.8% | +4.0% |
| 2024 | +11.4% | +7.9% |
| 2025 | +12.7% | -49.3% |
| 2026 | +22.3% | +46.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IWM and JILL good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between IWM and JILL?
As of 2026-08-27, the correlation of weekly returns between IWM and JILL is 0.48 over 3 years, 0.40 over 1 year and 0.43 over 5 years.
Is JILL a good diversifier for IWM?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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
$ curl https://www.pairbook.io/api/v1/pairs/iwm-vs-jill.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/iwm-vs-jill/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: IWM correlations · JILL correlations
