IWB vs IWY: holdings overlap, shared companies and scores
As of October 28, 2026, IWB and IWY overlap 51.5% by weight. iShares Russell 1000 ETF (IWB): Russell 1000 index. iShares Russell Top 200 Growth ETF (IWY): U.S. mega-cap growth stocks.
Updated October 28, 2026
Where IWB and IWY trade against their own history
IWB trades at 24.5 times earnings, against its own median of 22.4, and is more expensive than 63% of its own last 9 years.
IWY trades at 28.8 times earnings, against its own median of 31.4, and is cheaper than 61% of its own last 9 years.
What do IWB and IWY each hold?
What's inside IWB: Tech 42%, Magnificent 7 32%.
35% of IWB is its ten largest holdings.
What's inside IWY: Tech 67%, Magnificent 7 49%.
61% of IWY is its ten largest holdings.
How much do IWB and IWY overlap? 51.5% by weight
As of October 28, 2026, IWB and IWY overlap 51.5% by weight.
58% of IWB is already inside IWY.
100% of IWY is already inside IWB.
IWB holds 1,024 companies and IWY holds 103; 102 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 IWB and IWY? 6.8 and 7.5 out of 10
As of October 28, 2026, ETF Copilot scores IWB 6.8 out of 10 and IWY 7.5 out of 10.
They differ most on Risk: IWB 6.7 and IWY 2.9.
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 | IWB | IWY |
|---|---|---|
| Growth | 7.4 | 9.5 |
| Value | 3.6 | 5.8 |
| Risk | 6.7 | 2.9 |
| Quality | 8.0 | 10.0 |
| Return | 7.7 | 8.0 |
IWB is the cheaper of the two at 0.15% a year
As of October 28, 2026, IWB charges 0.15% a year, yields 0.91% and holds $49.0B in assets across 1024 positions.
As of October 28, 2026, IWY charges 0.20% a year, yields 0.33% and holds $15.6B in assets across 103 positions.
| Measure | IWB | IWY |
|---|---|---|
| Expense ratio | 0.15% | 0.20% |
| Dividend yield | 0.91% | 0.33% |
| Assets under management | $49.0B | $15.6B |
| Holdings | 1024 | 103 |
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.
Compare with similar funds
Cite this
ETF Copilot, “IWB vs IWY holdings overlap and scores”, as of October 28, 2026.
https://etf-copilot.com/compare/iwb-vs-iwy
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