What Is the IWO ETF? A Complete Guide to Returns, Expense Ratio, Holdings, and Alternative ETFs
The iShares Russell 2000 Growth ETF (IWO) offers broadly diversified exposure to US small-cap growth stocks. Its expense ratio, diversification, dividends, and small-cap volatility are the key selection criteria, and comparing it with large-cap growth ETFs and broad small-cap ETFs is important.
What Is the iShares Russell 2000 Growth ETF?
This ETF tracks the Russell 2000 Growth Index and holds US small-cap stocks with growth characteristics, weighted by market capitalization. Its broad diversification lets it follow the performance of the small-cap growth segment as a whole.
It suits investors who want long-term growth exposure through a diversified basket of US small-cap growth stocks.
It is a passive (index-tracking) ETF managed by BlackRock (iShares).
How Does the iShares Russell 2000 Growth ETF Invest?
| Item | Details |
|---|---|
| Tracked Index | Russell 2000 Growth |
| Management Style | Passive (index tracking) |
| Rebalancing Frequency | Once a year (index reconstitution) |
| Dividend Frequency | Quarterly |
| Fund Manager | BlackRock (iShares) |
| Total Expense Ratio | 0.24% |
The fund holds the constituents of the Russell 2000 Growth Index at their index weights, tracking the performance of US small-cap growth stocks as a whole. The index is made up of stocks selected on growth metrics such as revenue growth and growth outlook, and the fund's holdings are updated automatically when the index is reconstituted.
- Broad diversification focused on US small-cap growth stocks
- Relatively low turnover, which keeps trading costs modest
iShares Russell 2000 Growth ETF Size and Costs (AUM and Expense Ratio)
Assets under management (AUM) stand at $13.4B, and the total expense ratio is an annual 0.24%.
Compared with similar products tracking the same small-cap growth segment, it is stable in terms of management infrastructure and trading liquidity.
iShares Russell 2000 Growth ETF Performance and Trends
Small-cap growth stocks tend to be quite volatile, depending on economic sensitivity and risk appetite, and their performance relative to large caps often diverges from one period to the next. Short-term trends are shaped by both the interest rate environment and earnings seasons.
When risk appetite strengthens, money tends to flow into small-cap growth stocks. Conversely, when volatility rises, capital sometimes moves back to large-cap core assets.
iShares Russell 2000 Growth ETF Strengths and Weaknesses
Its strength is broad diversification across US small-cap growth stocks, while its weakness is the high volatility typical of small caps.
💪 Key Strengths
⚠️ Points to Watch
iShares Russell 2000 Growth ETF Alternative ETFs and Related Products
VUG, IWF, and IVW shown in the table are lower-cost growth ETFs focused on large-cap growth stocks, so their market-cap range differs from the small-cap segment of IWO. Meanwhile, IWM is a core alternative that broadly tracks the same Russell 2000 Index. For a value style within the same small-cap category, you can consider IWN, and for low-cost, broad small-cap exposure, VB is also worth reviewing.
| Ticker | Name | Price | Change | AUM | Total Expense Ratio | Dividend Yield | 1Y |
|---|---|---|---|---|---|---|---|
| Vanguard Morningstar Growth ETF | $82.17 | +0.9% | $211.3B | 0.03% | 0.42% | +1.5% | |
| iShares Russell 1000 Growth ETF | $111.75 | +1.3% | $113.2B | 0.18% | 0.39% | -5.3% | |
| iShares S&P 500 Growth ETF | $129.63 | +0.9% | $71.0B | 0.18% | 0.37% | +6.5% | |
| Schwab U.S. Large-Cap Growth ETF | $33.14 | +1.0% | $59.1B | 0.04% | 0.42% | +2.2% | |
| State Street SPDR Portfolio S&P 500 Growth ETF | $112.18 | +0.9% | $51.8B | 0.04% | 0.52% | +6.4% |
| Ticker | Name | Weight | Price | Change | Market Cap | P/E | Dividend Yield |
|---|---|---|---|---|---|---|---|
| BE | Bloom Energy Corp | 0.02% | $173.24 | +3.4% | $51.2B | 107.3 | - |
| Fabrinet | 0.01% | $327.13 | +11.7% | $11.7B | 24.7 | - | |
| Credo Technology Group Holding Ltd | 0.01% | $120.51 | +7.3% | $22.7B | 43.0 | - | |
| Nextpower Inc | 0.01% | $104.90 | +5.3% | $15.8B | 26.4 | - | |
| Kratos Defense & Security Solutions Inc | 0.01% | $35.10 | +5.1% | $6.6B | 286.5 | - | |
| Advanced Energy Industries Inc | 0.01% | $197.01 | +6.1% | $8.0B | 28.3 | 0.15% | |
| Sterling Infrastructure Inc | 0.01% | $252.82 | +3.5% | $7.7B | 14.2 | - | |
| BridgeBio Pharma Inc | 0.01% | $74.29 | +0.0% | $14.5B | - | - | |
| Guardant Health Inc | 0.01% | $150.87 | -1.7% | $20.2B | - | - | |
| Ensign Group Inc | 0.01% | $181.08 | -0.7% | $10.6B | 26.9 | 0.15% |
iShares Russell 2000 Growth ETF Investor Checkpoints
Here are the points to review before investing in IWO. Because this ETF specializes in small-cap growth stocks, it is wise to check volatility, costs, market-cap exposure, and currency effects in advance, and to judge whether it fits your own risk tolerance.
| Checkpoint | What to Check | Current Status |
|---|---|---|
| 💵 Expense Ratio | Check the cumulative cost impact over a long holding period | Annual fee applies |
| 📊 Volatility | Whether you can tolerate the price swings typical of small-cap growth stocks | Fairly volatile |
| 🧩 Diversification | Check the number of holdings and sector spread | Broadly diversified |
| 💱 Exchange Rate | Impact on returns converted to won | No currency hedge |
The high volatility and economic sensitivity that come with concentration in small-cap growth stocks are the main drivers of short-term gains and losses. In risk-off phases, drawdowns can be larger than for large caps, so position sizing needs adjusting.
It is a suitable choice for long-term investors seeking diversified exposure to US small-cap growth stocks. If broad small-cap exposure is the goal, compare IWM, and if low fees are the priority, compare VB as well.
Disclaimer: This content is for informational purposes only and does not constitute investment advice. All investment responsibility lies with the investor.
This article reflects information as of June 21, 2026.