IWO vs JSML: holdings overlap, shared companies and scores
As of October 9, 2026, IWO and JSML overlap 26.6% by weight. iShares Russell 2000 Growth ETF (IWO): Russell 2000 Growth index. Janus Henderson Small Cap Growth Alpha ETF (JSML): U.S. small-cap growth stocks.
Updated October 9, 2026
Where IWO and JSML trade against their own history
IWO trades at 22.8 times earnings, against its own median of 22.7, and is more expensive than 51% of its own last 9 years.
JSML trades at 20.7 times earnings, against its own median of 19.5, and is more expensive than 61% of its own last 9 years.
What moved IWO this week
IWO fell 1.1% in the week to October 9, 2026. The holdings that moved it most were Twist Bioscience (−15.3%), 10X Genomics (−13.7%) and AXT (−20.3%); Vaxcyte (+26.4%) pushed the other way.
What do IWO and JSML each hold?
What's inside IWO: Tech 23%, Semiconductors 5%.
6% of IWO is its ten largest holdings.
What's inside JSML: Tech 25%, Semiconductors 5%.
18% of JSML is its ten largest holdings.
How much do IWO and JSML overlap? 26.6% by weight
As of October 9, 2026, IWO and JSML overlap 26.6% by weight.
27% of IWO is already inside JSML.
100% of JSML is already inside IWO.
IWO holds 1,117 companies and JSML holds 121; 121 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score IWO and JSML? 4.1 and 3.9 out of 10
As of October 9, 2026, ETF Copilot scores IWO 4.1 out of 10 and JSML 3.9 out of 10.
They differ most on Value: IWO 6.8 and JSML 4.4.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | IWO | JSML |
|---|---|---|
| Growth | 6.5 | 4.5 |
| Value | 6.8 | 4.4 |
| Risk | 1.8 | 2.1 |
| Quality | 0.6 | 1.8 |
| Return | 3.6 | 5.6 |
IWO is the cheaper of the two at 0.24% a year
As of October 9, 2026, IWO charges 0.24% a year, yields 0.45% and holds $14.0B in assets across 1117 positions.
As of October 9, 2026, JSML charges 0.30% a year, yields 0.29% and holds $355M in assets across 121 positions.
| Measure | IWO | JSML |
|---|---|---|
| Expense ratio | 0.24% | 0.30% |
| Dividend yield | 0.45% | 0.29% |
| Assets under management | $14.0B | $355M |
| Holdings | 1117 | 121 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Cite this
ETF Copilot, “IWO vs JSML holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/iwo-vs-jsml
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