IWM vs VB: holdings overlap, shared companies and scores
As of September 11, 2026, IWM and VB overlap 25.5% by weight. iShares Russell 2000 ETF (IWM): Russell 2000 index. Vanguard Morningstar Small-Cap ETF (VB): U.S. small-cap equities.
Updated September 11, 2026
How much do IWM and VB overlap?
As of September 11, 2026, IWM and VB overlap 25.5% by weight.
68% of IWM is already inside VB.
26% of VB is already inside IWM.
IWM holds 1,951 companies and VB holds 1,304; 675 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 IWM and VB?
As of September 11, 2026, ETF Copilot scores IWM 4.2 out of 10 and VB 4.4 out of 10.
They differ most on Valuation: IWM 8.2 and VB 5.9.
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 | IWM | VB |
|---|---|---|
| Growth | 5.1 | 6.4 |
| Valuation | 8.2 | 5.9 |
| Risk | 2.4 | 3.0 |
| Quality | 0.7 | 1.4 |
| Return | 4.3 | 4.3 |
VB is the cheaper of the two at 0.03% a year
As of September 11, 2026, IWM charges 0.19% a year, yields 1.34% and holds $80.5B in assets across 1951 positions.
As of September 11, 2026, VB charges 0.03% a year, yields 1.42% and holds $183.4B in assets across 1304 positions.
| Measure | IWM | VB |
|---|---|---|
| Expense ratio | 0.19% | 0.03% |
| Dividend yield | 1.34% | 1.42% |
| Assets under management | $80.5B | $183.4B |
| Holdings | 1951 | 1304 |
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.
Where IWM and VB trade against their own history
IWM trades at 16.8 times earnings, against its own median of 16.7, and is more expensive than 56% of its own 114 monthly readings since 2017.
VB trades at 19.6 times earnings, against its own median of 18.4, and is more expensive than 69% of its own 114 monthly readings since 2017.
What moved IWM and VB this week
IWM fell 2.1% in the week to September 11, 2026. The holdings that moved it most were Servicetitan (−41.3%), Qualys (−13.8%) and Dyne Therapeutics (−27.0%); Maxlinear (+25.4%) pushed the other way.
VB fell 2.1% in the week to September 11, 2026. The holdings that moved it most were Casey S General Stores (−18.8%), Guidewire Software (−30.5%) and Cooper (−23.7%); Roivant Sciences (+18.6%) pushed the other way.
What do IWM and VB each hold?
What's inside IWM: Tech 14%, Semiconductors 2%.
3% of IWM is its ten largest holdings.
What's inside VB: Tech 17%, Semiconductors 3%.
4% of VB is its ten largest holdings.
Compare with similar funds
Cite this
ETF Copilot, “IWM vs VB holdings overlap and scores”, as of September 11, 2026.
https://etf-copilot.com/compare/iwm-vs-vb
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