iShares Russell 2000 Growth ETF (IWO) is a US small-cap ETF. As of October 9, 2026, ETF Copilot scores IWO 4.1 out of 10 — highest on Value (6.8), lowest on Quality (0.6). It trades at 22.8 times earnings, against its own median of 22.7. Its ten largest holdings are 6% of the fund.
What stands out in IWO's data
Small-cap growth stocks in the Russell 2000 Growth index.
Profit margins trail most peers — the case for this fund rests on future growth, not current earnings.
EBITDA margin of 14.4% sits behind most peers, whose median is 20.4%. Analysts project 20% earnings growth ahead, and the fund holds 1,117 stocks.
A broad small-cap growth allocation, built on the promise of future earnings rather than today's margins.
Why did IWO move this week? It fell 1.1% in the week to October 9, 2026 — Twist Bioscience and 10X Genomics drove it
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.
How is IWO rated? ETF Copilot scores iShares Russell 2000 Growth ETF (IWO) 4.1 out of 10
As of October 9, 2026, ETF Copilot scores iShares Russell 2000 Growth ETF (IWO) 4.1 out of 10 overall.
ETF Copilot scores (0–10 scale, higher is better):
- Overall: 4.1 / 10
- Growth: 6.5 / 10
- Value: 6.8 / 10
- Risk: 1.8 / 10
- Quality: 0.6 / 10
- Return: 3.6 / 10
Is IWO expensive right now? It trades at 22.8 times earnings, against its own median of 22.7
As of October 9, 2026, IWO is more expensive than 51% of its own 105 monthly readings since 2017 — 54 of those months were cheaper than today.
Trailing twelve-month, computed by ETF Copilot from the fund's holdings rather than quoted from a data provider, and rebuilt nightly.
What's inside IWO? 23% Tech
What's inside IWO: Size (Large 0%, Mid 34%, Small 66%); Geography (International 5%, US 95%); Tech 22.8%; AI 0.4%; Semiconductors 4.7%; Memory 0.7%.
What are IWO's top holdings? The ten largest are 6% of the fund
Brightspring Hlth Services, Jfrog, Moog, Twist Bioscience, Glaukos, 10X Genomics, Firstcash, Protagonist Therapeutics, Interdigital and Krystal Biotech are IWO's largest holdings, in that order.
More concentrated than 54% of US Small Cap ETFs.
Half of IWO's weight sits in its 144 largest positions, and once those weights are taken into account it behaves like 404 equally weighted holdings.
What is IWO's expense ratio? 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.
| Measure | IWO |
|---|---|
| Expense ratio | 0.24% |
| Dividend yield | 0.45% |
| Assets under management | $14.0B |
| Holdings | 1117 |
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, “iShares Russell 2000 Growth ETF (IWO) scores and holdings analysis”, as of October 9, 2026.
https://etf-copilot.com/etf/iwo
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