SPDR S&P 500 ETF Trust
IWM NYSE
iShares Russell 2000 ETF · by BlackRock
iShares Russell 2000 ETF tracks small-cap U.S. stocks, providing exposure to 2,000 smaller companies. A key barometer of domestic economic health and small business growth.
What is IWM?
iShares Russell 2000 ETF (IWM) tracks the Russell 2000 Index, providing exposure to approximately 2,000 small-cap U.S. companies. It's the most popular small-cap ETF, serving as the benchmark for small-cap performance.
Small-Cap Characteristics
Small-cap stocks have historically provided higher long-term returns than large-caps, compensating for their higher volatility and risk. The Russell 2000 has a median market cap of approximately $1.2 billion.
Sector Allocation
- Healthcare: 16.8%
- Industrials: 16.2%
- Financials: 15.5%
- Technology: 14.8%
- Consumer Discretionary: 10.2%
- Energy: 6.5%
- Real Estate: 5.8%
- Materials: 4.2%
- Consumer Staples: 3.5%
- Utilities: 3.2%
- Communication Services: 3.3%
IWM vs VTWO vs SCHA
IWM (0.19%) is the most liquid small-cap ETF. VTWO (0.10%) tracks the same index at lower cost. SCHA (0.04%) tracks the Dow Jones U.S. Small-Cap Index and is the cheapest option. For buy-and-hold, SCHA or VTWO may be more cost-effective.
Small-Cap Premium and Risks
Small-caps tend to outperform during economic recoveries and underperform during late-cycle environments. They're more sensitive to domestic economic conditions since most revenue comes from the U.S. market.
Top holdings
Every holding links to its own page with a live price and the full list of funds that own it.
| # | Holding | Ticker | Sector | Weight | Price |
|---|---|---|---|---|---|
| 1 | Super Micro Computer | SMCI | Technology | 0.80% | $37.87 2.35% |
| 2 | FTAI Aviation | FTAI | Industrials | 0.60% | $199.39 7.42% |
| 3 | Onto Innovation | ONTO | Technology | 0.50% | $252.46 -0.82% |
| 4 | Sprouts Farmers Market | SFM | Consumer Staples | 0.50% | $79.13 0.47% |
| 5 | Insmed Inc. | INSM | Healthcare | 0.40% | $126.68 0.04% |
| 6 | Comfort Systems | FIX | Industrials | 0.40% | $1,580.19 1.29% |
| 7 | Mueller Water | MWA | Industrials | 0.40% | $23.90 0.34% |
| 8 | Axcelis Technologies | ACLS | Technology | 0.30% | $110.37 -0.36% |
| 9 | Fabrinet | FN | Technology | 0.30% | $395.00 -0.09% |
| 10 | Merit Medical | MMSI | Healthcare | 0.30% | $88.57 -1.73% |
Frequently asked questions
Is IWM good for growth?
IWM provides exposure to small, fast-growing companies that may become tomorrow's large-caps. It's ideal for growth-oriented investors with a long time horizon.
Why is IWM so volatile?
Small-cap stocks are more sensitive to economic conditions and have less analyst coverage, leading to larger price swings.
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IWM discussion
Questions on fair value, cost, dividends and risk — answered with the fund data on this page.
What is the fair value of IWM in 2026?
IWM price prediction 2026: what actually drives it?
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Is IWM a good long-term hold, or too concentrated?
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