Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs IWF: how they differ
IWB and IWF hold 56% of their weight in the same names, and IWB returned more over the year.
iShares Russell 1000 ETF and iShares Russell 1000 Growth ETF.
What they hold in common
By the books each fund has filed, IWB and IWF hold 56% of their money in the same securities at the same weight.
| Holding | IWB | IWF |
|---|---|---|
| NVIDIA | 7.26% | 15.46% |
| APPLE | 6.73% | 7.77% |
| MICROSOFT | 5.21% | 5.55% |
| ALPHABET CLASS A | 2.77% | 5.88% |
| BROADCOM INC | 2.40% | 5.10% |
| ALPHABET CLASS C | 2.24% | 4.77% |
| META PLATFORMS CLASS A | 2.02% | 3.52% |
| MICRON TECHNOLOGY | 1.57% | 3.35% |
| TESLA INC | 1.52% | 3.22% |
| ELI LILLY | 1.28% | 2.72% |
| ADVANCED MICRO DEVICES | 1.17% | 2.49% |
| VISA CLASS A | 0.87% | 1.84% |
| Only in IWB | Only in IWF |
|---|---|
| BERKSHIRE HATHAWAY INC CLASS B 1.35% | CASH COLLATERAL MSFUT USD 0.02% |
| JPMORGAN CHASE & CO 1.35% | AURA MINERALS INC 0.01% |
| EXXONMOBIL HOLDINGS CORP 0.98% | CARIS LIFE SCIENCES 0.01% |
| JOHNSON & JOHNSON 0.92% | CHOICE HOTELS INTERNATIONAL 0.01% |
| INTEL CORPORATION 0.65% | FREEDOM HOLDING CORP 0.01% |
| CISCO SYSTEMS INC 0.61% | KARMAN HOLDINGS INC 0.01% |
| CHEVRON 0.56% | SUMMIT THERAPEUTICS 0.01% |
| MERCK & CO INC 0.51% | UBIQUITI 0.01% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
| IWB iShares Russell 1000 ETF | IWF iShares Russell 1000 Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | Russell 1000 | Russell 1000 growth |
| Total return, 1 year | +16.7% | +7.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | −10.5 pts |
| Expense ratio | 0.15% | 0.18% |
| Already in the S&P 500 | 91.9% | 93.6% |
| Holdings | 945 | 315 |
IWB in plain words
IWB is an index equity fund tracking the Russell 1000. Over the year to Sep 11, 2026 it returned +16.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 945 positions, with the top ten at 35.2%.
IWF in plain words
IWF is an index equity fund tracking the Russell 1000 growth. Over the year to Sep 11, 2026 it returned +7.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.18% a year. By its holdings filed for Sep 10, 2026, 94% of the fund by weight is stocks the S&P 500 also holds, across 315 positions, with the top ten at 57.3%. It sat 5.0% below its high of Jun 1, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWB or IWF?
- In the year to Sep 13, 2026, with distributions reinvested, IWB returned +16.7% and IWF returned +7.0%, so IWB returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or IWF?
- IWB charges 0.15% a year and IWF charges 0.18%, so IWB is cheaper. Fees come from each fund's prospectus.
- How much do IWB and IWF overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 94% of IWF by weight is stocks the S&P 500 already holds. Between the two funds, 56% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, IWB against IWF, data as of Sep 13, 2026. https://etfiq.com/compare/any/iwb-vs-iwf Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources