IWO — iShares Russell 2000 Growth ETF
US Small Cap Ranked #211 of 458 tracked ETFs · Issued by iShares
IWO Price Performance — Growth of $10,000
Value of a $10,000 investment in IWO over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.
IWO Drawdown
The "underwater" chart: IWO's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.
What If You'd Invested in IWO?
See what a lump sum in IWO would have grown to, with the option to add a regular monthly contribution on top. Figures use total returns — dividends are assumed reinvested.
Past performance doesn't predict future results. Assumes contributions on the first trading day of each month, no trading costs or taxes, and reinvested distributions. History is limited to the range published in the site's daily return data.
Overview
The iShares Russell 2000 Growth ETF (IWO) is a US Small Cap fund issued by iShares with $15.4 billion in assets under management. It currently holds an overall rank of #211 out of 458 tracked ETFs across all categories and has received an ETFValuer grade of C with a score of 61.9 out of 100. The fund charges an expense ratio of 0.24% and offers a dividend yield of 0.31%. Trading at a price of $370.23, the substantial asset size suggests significant investor adoption within the 18 ETFs tracked in this category. This combination of high assets and a mid-tier ranking indicates a well-established vehicle that faces stiff competition among its peers. The fund's cost structure and income profile are standard for a large-cap growth focused small-cap strategy.
Recent performance data shows a decline over the shortest horizons, with the fund down 1.01% over one day and 1.72% over one week. A further drop of 4.83% occurred over the past month, contrasting with a recovery to positive territory over the next three months where returns reached +4.13%. The six-month return of +4.83% indicates a continuation of the recent positive trend, while year-to-date gains have accelerated to +13.35%. Over the longer term, the fund has delivered a one-year return of +25.62% and a three-year return of +48.66%. This pattern illustrates a divergence where short-term volatility has been offset by strong multi-year growth. The trajectory from negative monthly returns to double-digit annual gains highlights a volatile but ultimately upward long-term trend.
The fund carries a High volatility label and a beta of 1.43, indicating that its price movements tend to be more pronounced than the broader market. This heightened sensitivity is reflected in a maximum drawdown of -28.57%, showing the extent of potential losses during market downturns. Despite these risks, the fund has generated a Sharpe ratio of 0.93, suggesting that the returns achieved have been reasonable relative to the volatility experienced. The combination of a high beta and significant drawdown implies the fund is aggressive in both rising and falling markets. Investors in this vehicle should expect larger swings in value compared to lower-beta alternatives within the 18 ETFs in the US Small Cap category.
AI-generated summary based on the data on this page.
IWO Top Holdings
| # | Holding | % of Net Assets | Value |
|---|---|---|---|
| 1 | BlackRock Funds III | 17.56% | $2.27B |
| 2 | Credo Technology Group Holding Ltd. | 1.46% | $189M |
| 3 | Bloom Energy Corp. | 1.22% | $159M |
| 4 | IonQ, Inc. | 1.15% | $149M |
| 5 | Kratos Defense & Security Solutions, Inc. | 1.03% | $133M |
| 6 | Fabrinet | 0.89% | $115M |
| 7 | Rambus, Inc. | 0.76% | $98M |
| 8 | Hims & Hers Health, Inc. | 0.73% | $95M |
| 9 | Sterling Infrastructure, Inc. | 0.69% | $89M |
| 10 | AeroVironment, Inc. | 0.68% | $88M |
Holdings as of 2025-09-30 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 26.2% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how IWO's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.
Which Funds Overlap With IWO
Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with IWO's top 10 — IWM overlaps most, holding 8 of the same companies as IWO's top 10 (24.8% of IWO's assets).
| ETF | Name | Shared Companies | IWO Weight | Examples |
|---|---|---|---|---|
| IWM | iShares Russell 2000 ETF | 8 | 24.8% | BlackRock Funds III, Credo Technology Group Holding Ltd., Bloom Energy Corp.… |
| VTWO | Vanguard Russell 2000 Index Fund ETF Shares | 5 | 5.7% | Bloom Energy Corp., Credo Technology Group Holding Ltd., IonQ, Inc.… |
| IJT | iShares S&P Small-Cap 600 Growth ETF | 2 | 18.2% | BlackRock Funds III, Sterling Infrastructure, Inc. |
| ITOT | iShares Core S&P Total U.S. Stock Market ETF | 1 | 17.6% | BlackRock Funds III |
| IBB | iShares Biotechnology ETF | 1 | 17.6% | BlackRock Funds III |
Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.
Market Backdrop
10-Year Treasury Yield: 4.71% (as of 2026-07-23) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.
CBOE Volatility Index (VIX): 18.70 (as of 2026-07-23) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.
Federal Funds Rate: 3.63% (as of 2026-06-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.
What IWO's Fees Cost You
IWO charges an expense ratio of 0.24% a year, deducted automatically from the fund's value. Small percentages compound into real money — adjust the figures below to see the impact on your own numbers.
Assumes a constant gross return and no additional contributions — a simplification, but it isolates exactly what the expense ratio costs. Try the full fee calculator to model contributions and compare any two funds.
IWO Dividend Income Estimator
IWO currently yields 0.31%. Enter an amount to see the income that implies, or set a monthly income target to see the investment it would take.
Based on the fund's current trailing yield, which varies with price and distributions — treat it as an estimate, not a guarantee. Yields are not adjusted for tax.
IWO Liquidity, Domicile & Tax Treatment
Liquidity: Quoted bid/ask spread is 21.73% and average daily volume is 419K/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $15.4B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.
Domicile & tax treatment: IWO is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.
IWO Performance History
| Period | Return |
|---|---|
| 1-Day | -1.01% |
| 1-Week | -1.72% |
| 1-Month | -4.83% |
| 3-Month | +4.13% |
| 6-Month | +4.83% |
| YTD | +13.35% |
| 1-Year | +25.62% |
| 3-Year | +48.66% |
How IWO Compares to Other US Small Cap ETFs
| Rank | Grade | Ticker | Name | 1-Year | Exp. Ratio | AUM |
|---|---|---|---|---|---|---|
| #74 | B |
IJR | iShares Core S&P Small-Cap ETF | +28.56% | 0.06% | $111B |
| #75 | B |
IWN | iShares Russell 2000 Value ETF | +34.20% | 0.24% | $14.5B |
| #79 | B |
AVUV | Avantis US Small Cap Value ETF | +31.59% | 0.25% | $29.1B |
| #83 | B |
IWM | iShares Russell 2000 ETF | +29.78% | 0.19% | $83.0B |
| #84 | B |
SCHA | Schwab U.S. Small-Cap ETF | +29.42% | 0.03% | $24.2B |
| #91 | B |
VBR | Vanguard Small-Cap Value Index Fund ETF Shares | +21.70% | 0.05% | $67.8B |
| #98 | B |
VTWO | Vanguard Russell 2000 Index Fund ETF Shares | +30.02% | 0.06% | $18.6B |
| #108 | B |
SPSM | State Street SPDR Portfolio S&P 600 Small Cap ETF | +28.69% | 0.03% | $16.9B |
| #123 | B |
VB | Vanguard Small-Cap Index Fund ETF Shares | +20.98% | 0.03% | $189B |
| #132 | B |
DFAT | Dimensional U.S. Targeted Value ETF | +26.16% | 0.28% | $14.3B |
| #136 | B |
VIOO | Vanguard S&P Small-Cap 600 Index Fund ETF Shares | +28.68% | 0.07% | $6.41B |
| #139 | B |
IJS | iShares S&P Small-Cap 600 Value ETF | +31.02% | 0.18% | $8.02B |
| #147 | B |
SLYV | State Street SPDR S&P 600 Small Cap Value ETF | +31.13% | 0.15% | $4.83B |
| #149 | B |
DFSV | Dimensional US Small Cap Value ETF | +28.81% | 0.3% | $7.92B |
| #163 | B |
IJT | iShares S&P Small-Cap 600 Growth ETF | +26.10% | 0.18% | $8.22B |
| #171 | B |
SLYG | State Street SPDR S&P 600 Small Cap Growth ETF | +25.99% | 0.15% | $5.20B |
| #211 | C |
IWO | iShares Russell 2000 Growth ETF | +25.62% | 0.24% | $15.4B |
| #225 | C |
VBK | Vanguard Small-Cap Growth Index Fund ETF Shares | +19.86% | 0.05% | $47.0B |