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IWM iShares Russell 2000 ETF
IWM is a US Small Cap ETF issued by BlackRock. It tracks the Russell 2000 index, costs 0.19% a year, and launched in May 2000.
Composition last reviewed 2026-09-08; assets as of 2026-09-24.
Key facts
| Ticker | IWM |
|---|---|
| Full name | iShares Russell 2000 ETF |
| Issuer | BlackRock |
| Category | US Small Cap |
| Sub-category | Russell 2000 |
| Index tracked | Russell 2000 |
| Expense ratio | 0.19% |
| Assets under management | $75.91bn |
| Inception | 22 May 2000 |
| Asset class | Equity |
| Region | US |
Sector allocation
- Technology20%
- Healthcare16%
- Financials15%
- Consumer Cyclical14%
- Industrials12%
- Consumer Defensive8%
- Communication Services6%
- Energy4%
- Utilities3%
- Real Estate1%
- Materials1%
Geographic exposure
United States vs international
- United States100%
Top 10 holdings
- 1Apple
- 2Microsoft
- 3Amazon
- 4NVIDIA
- 5Alphabet
- 6Meta
- 7Tesla
- 8Berkshire Hathaway
- 9UnitedHealth
- 10JPMorgan Chase
Frequently asked
What is IWM's expense ratio?
iShares Russell 2000 ETF charges 0.19% a year — $19 on a $10,000 holding.
What index does IWM track?
iShares Russell 2000 ETF tracks the Russell 2000 index.
How large is IWM?
Our dataset puts IWM at about $75.91bn in assets under management (as of 2026-09-24). Assets move with markets and flows, so treat this as a snapshot rather than a current figure.
What are IWM's largest holdings?
The 10 largest holdings in our dataset are Apple, Microsoft, Amazon, NVIDIA, Alphabet, Meta, Tesla, Berkshire Hathaway, UnitedHealth and JPMorgan Chase.