At a glance
IWB charges 0.15% a year, above the 0.06% average of the 8 funds most like it (the 8th cheapest of 9). It has $48.33B in assets, the 7th largest of that group; it paid 0.93% of its price in distributions over the past 12 months, quarterly. Over the past year it returned +11.2% with distributions reinvested (S&P 500: +11.5%), the weakest of those 9 funds; over three years it returned +21.7% a year. At its worst it fell 34.6% in the 2020 crash (S&P 500: 33.7%) and 25.2% in the 2022 bear market (S&P 500: 24.5%), and was back at its earlier high 5 months and 14 months after the lows. Its ten largest positions make up 33.5% of the fund, out of 1,024 in all.
The short version
The iShares Russell 1000 ETF (IWB) tracks the Russell 1000 Index, roughly 1,000 large and mid-sized US companies; as of June 30, 2026, its biggest holdings were NVIDIA, Apple and Microsoft. It overlaps heavily (about 91%) with S&P 500 funds but costs more. Its 0.15% annual fee (expense ratio), per its July 2026 prospectus, tops all eight similar funds compared, including Vanguard Russell 1000 ETF (VONE) at 0.07% and several at 0.03%.
Price history
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IWB +11.2% over the year to Nov 2, 2026, total return with distributions reinvested.
How it has behaved
| YTD | 1 yr | 3 yr | 5 yr | 10 yr | Since start | |
|---|---|---|---|---|---|---|
| IWB official prospectus, to Dec 31, 2025 | — | +17.19% | — | +13.43% | +14.44% | — |
| Russell 3000 Index index, same period | — | +17.15% | — | +13.15% | +14.29% | — |
| IWB price data to Nov 2, 2026 | +10.9% | +11.2% | +21.7% | +11.0% | +15.1% | +10.8% |
- Over the year to Nov 2, 2026, IWB returned +11.2%, 9th of 9 among similar funds.
- Its 5-year annualized return was +11.0% and its 10-year +15.1%.
- In the 2020 COVID crash it fell 34.6% and regained its old high 4.7 months after the low.
- Its worst full calendar year was 2008 (-37.4%); its best was 2013 (+32.8%).
- The deepest fall in its price history was 55.4% (Oct 9, 2007 to Mar 9, 2009), recovered by Mar 19, 2012.
Show as a table
| Year | Price data | Prospectus (official) |
|---|---|---|
| 2026 (to date) | +10.9% | — |
| 2025 | +17.2% | +17.19% |
| 2024 | +24.3% | +24.33% |
| 2023 | +26.4% | +26.40% |
| 2022 | -19.2% | -19.24% |
| 2021 | +26.3% | +26.27% |
| 2020 | +20.8% | +20.80% |
| 2019 | +31.1% | +31.26% |
| 2018 | -4.9% | -4.91% |
| 2017 | +21.5% | +21.52% |
| 2016 | +12.0% | +11.91% |
| 2015 | +0.8% | — |
| 2014 | +13.1% | — |
| 2013 | +32.8% | — |
| 2012 | +16.5% | — |
| 2011 | +1.2% | — |
| 2010 | +16.1% | — |
| 2009 | +28.4% | — |
| 2008 | -37.4% | — |
| 2007 | +5.3% | — |
| 2006 | +15.4% | — |
| 2008 financial crisis stocks fell Oct 9, 2007 – Mar 9, 2009 | Lost 55.4% over that stretch · deepest drop along the way 55.4%, back to its old high 36.3 months after the low |
|---|---|
| 2020 COVID crash stocks fell Feb 19, 2020 – Mar 23, 2020 | Lost 34.6% over that stretch · deepest drop along the way 34.6%, back to its old high 4.7 months after the low |
| 2022 bear market stocks fell Jan 3, 2022 – Oct 12, 2022 | Lost 25.2% over that stretch · deepest drop along the way 25.2%, back to its old high 14.1 months after the low |
Dividends and income
Show as a table
| Year | Per share | Change |
|---|---|---|
| 2026 (to date) | $2.7200 | |
| 2025 | $3.7300 | +1.1% |
| 2024 | $3.6900 | +7.0% |
| 2023 | $3.4500 | +4.9% |
| 2022 | $3.2900 | +13.8% |
| 2021 | $2.8900 | -0.3% |
| 2020 | $2.9000 | -5.2% |
| 2019 | $3.0600 | +7.0% |
| 2018 | $2.8600 | +17.7% |
| 2017 | $2.4300 | +3.4% |
| 2016 | $2.3500 | +5.9% |
| 2015 | $2.2200 | +13.8% |
| 2014 | $1.9500 | +13.4% |
| 2013 | $1.7200 | +6.2% |
| 2012 | $1.6200 | +20.9% |
| 2011 | $1.3400 | +14.5% |
| 2010 | $1.1700 | -1.7% |
| 2009 | $1.1900 | -2.5% |
| 2008 | $1.2200 | -7.6% |
| 2007 | $1.3200 | +9.5% |
| 2006 | $1.2060 |
What's inside
As of Jun 30, 2026, the fund held 1,024 securities; the ten largest made up 33.45% of assets.
| Holding | Weight | |
|---|---|---|
| NVIDIA CORPORATION | 6.72% | |
| APPLE INC. | 6.03% | |
| MICROSOFT CORPORATION | 3.99% | |
| AMAZON.COM, INC. | 3.33% | |
| ALPHABET INC. Class A | 3.00% | |
| BROADCOM INC. | 2.53% | |
| ALPHABET INC. | 2.42% | |
| MICRON TECHNOLOGY, INC. | 1.87% | |
| META PLATFORMS, INC. | 1.78% | |
| TESLA, INC. | 1.77% | |
| ELI LILLY AND COMPANY | 1.38% | |
| ADVANCED MICRO DEVICES, INC. | 1.36% | |
| BERKSHIRE HATHAWAY INC. | 1.34% | |
| JPMORGAN CHASE & CO. | 1.26% | |
| INTEL CORPORATION | 0.88% |
By country
United States 96.67%Ireland 1.55%Switzerland 0.26%Bermuda 0.26%Cayman Islands 0.25%By asset type
Stocks 99.87%By sector
Sectors of the companies held, for the 84.6% of the fund in companies that have a stock page here; other holdings and cash aren't classified. Source: N-PORT holdings report as of Jun 30, 2026. Cash, money-market funds and derivatives are shown separately from the securities list.What changed recently
- Over the three months to Jun 30, 2026, investors withdrew a net $721.8M (creations minus redemptions, per the N-PORT report).
- Monthly total returns reported for that quarter: +10.09%, +5.09%, -0.52%.
How it works
IWB tracks the Russell 1000 Index, run by FTSE Russell, part of the London Stock Exchange Group. The index includes the roughly 1,006 largest companies in the Russell 3000 Index, which covers the broad US stock market. As of March 31, 2026, they made up about 95% of the Russell 3000's value. Stocks are weighted by float-adjusted market value, the worth of shares the public can trade. So giants dominate: as of June 30, 2026, NVIDIA was 6.7% of the fund and Apple 6.0%.
BlackRock manages the fund with representative sampling. Rather than owning every index stock, it may hold a sample chosen to match the index's size, industry weights, price swings and yield. Normally, at least 80% of net assets must sit in index stocks. It may also use cash, money market funds and stock index futures, contracts that track an index's price. As of June 30, 2026, cash was 0.82%.
The fund doesn't try to beat the index or turn defensive in falling markets. When FTSE Russell adds or drops companies, the fund follows. The prospectus reports portfolio turnover, the share of holdings replaced in a year, of just 3%. It can lend out securities worth up to a third of its total assets, earning fees but relying on borrowers to return them.
What it really costs
- IWB charges 0.15% a year, versus an average of 0.06% for the similar funds below (8th of 9, cheapest first).
- Using the prospectus's standard example, $10,000 invested would cost about $15 in the first year and $192 over 10 years (assuming a 5% annual return).
| Cost of $10,000 (SEC example) | 1 yr | 3 yrs | 5 yrs | 10 yrs |
|---|---|---|---|---|
| IWB | $15 | $48 | $85 | $192 |
In a retirement portfolio
It holds roughly 1,000 large and mid-sized US companies, the broad stock exposure many long-term portfolios are built around, though cheaper versions exist.
IWB moves with the US stock market. In price records since 2005, its deepest drop came in the 2008 financial crisis: 55.4% from October 2007 to March 2009, with no full recovery until March 2012. Its worst calendar year was also 2008, a 37.4% loss. It fell 34.6% in the 2020 COVID crash, recovering by August, and 25.2% in the 2022 bear market, recovering by December 2023. Drawing money during such a slump means cashing out shares at depressed prices.
Income is modest: quarterly payouts over the past 12 months equaled a 0.91% yield as of October 27, 2026. Cost is the main drawback: 0.15% a year, versus 0.03% to 0.07% for most similar funds. The SEC's standard example puts costs at $192 over 10 years on $10,000 earning 5% yearly. Past results don't predict the future, and a plan needs to look at the whole portfolio, not one fund.
Who it may suit — and who should look elsewhere
May suit
- Investors wanting one fund spanning roughly 1,000 large and mid-sized US companies, about 95% of the broad Russell 3000's value as of March 31, 2026.
- Long-term holders who can wait out deep drops, like the 55.4% fall from October 2007 to March 2009, without needing to withdraw.
- Long-time holders in taxable accounts, where switching to a cheaper peer such as VONE or IVV could trigger capital gains tax larger than the fee savings.
Look elsewhere if
- Cost-focused investors: the 0.15% expense ratio ranks ninth of nine similar funds; VONE charges 0.07%, and IVV, VOO and VTI 0.03%.
- Investors wary of big-tech concentration: the 10 largest holdings, led by NVIDIA, Apple and Microsoft, were 33% of assets as of June 30, 2026.
- Retirees needing steady income or stability: the yield was 0.91% as of October 27, 2026, and the fund fell 25.2% in the 2022 bear market.
Close alternatives
Matched by holdings overlap from the latest N-PORT reports.
| Fund | Overlap | Cost | Net assets | 1 yr | 3 yr |
|---|---|---|---|---|---|
| IWB this fund | — | 0.15% | $48.33B | +11.2% | +21.7% |
| USPX Franklin U.S. Equity Index ETF | 92% | 0.03% | $1.98B | +12.9% | +24.9% |
| SPY SPDR S&P 500 ETF Trust | 91% | 0.0945% | $781.19B | +11.5% | +21.9% |
| IVV iShares Core S&P 500 ETF | 91% | 0.03% | $888.13B | +11.5% | +22.0% |
| VOO Vanguard S&P 500 ETF | 91% | 0.03% | $1.67T | +12.4% | +23.6% |
| ITOT iShares Core S&P Total U.S. Stock Market ETF | 91% | 0.03% | $94.14B | +11.4% | +21.8% |
| VTI Vanguard Total Stock Market ETF | 91% | 0.03% | $2.30T | +12.5% | +23.4% |
| VV Vanguard Large Cap ETF | 90% | 0.04% | $73.83B | +12.0% | +23.8% |
Questions investors ask
Is IWB the same as an S&P 500 fund?
No, but it's close. IWB tracks the Russell 1000 Index, about 1,006 large and mid-sized US companies, which is a different index from the S&P 500. Even so, its holdings overlapped about 91% with SPY, IVV and VOO in the latest reports. Returns have been similar: in the year through October 27, 2026, IWB returned 12.9%, versus 13.5% for SPY and 13.6% for IVV and VOO. IWB charges more, though: 0.15% a year, versus 0.03% for IVV and VOO.
What's the difference between IWB and VONE?
The main difference is cost. Both are Russell 1000 funds, but IWB's expense ratio is 0.15% a year, while Vanguard Russell 1000 ETF (VONE) charges 0.07%. Their holdings overlapped about 90% in the latest reports, and results have been close: through October 27, 2026, IWB returned 12.9% over one year and 24.5% a year over three, versus 13.0% and 24.6% for VONE. IWB is larger, with $48.3 billion in net assets as of June 30, 2026, against $11.3 billion for VONE as of May 31, 2026.
What is IWB's expense ratio?
IWB's expense ratio is 0.15% a year, per its prospectus filed July 27, 2026. The expense ratio is the yearly fee deducted from fund assets. IWB ranks ninth of nine similar funds on cost, making it the priciest of the group: the average among its peers is 0.04%, and IVV, VOO and VTI charge 0.03%. In the SEC's standard example, $10,000 earning 5% a year would incur about $15 in costs after one year, $85 after five and $192 after 10.
Does IWB pay dividends?
Yes. IWB pays dividends quarterly, passing along dividends from the companies it holds. Over the 12 months through October 27, 2026, it paid $3.82 per share, a yield of 0.91%. That is modest income, so the fund works more as a growth holding than an income source. Payouts can also rise or fall with the dividends its companies pay.
What is IWB's 10-year average return?
IWB returned an average of 14.44% a year over the 10 years ended December 31, 2025, according to its prospectus. That was slightly ahead of the 14.29% for the Russell 3000 Index, the broad-market benchmark shown there. Over five years to the same date it averaged 13.43% a year. Based on market prices, its average yearly return over 10 years through October 27, 2026 was 15.2%. Yearly results swung widely, from a 31.26% gain in 2019 to a 19.24% loss in 2022.