Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs VTI: how they differ
IWB and VTI hold 0% of their weight in the same names.
iShares Russell 1000 ETF and Vanguard Total Stock Market Index Fund.
What they hold in common
By the books each fund has filed, IWB and VTI hold 0% of their money in the same securities at the same weight.
| Only in IWB | Only in VTI |
|---|---|
| NVIDIA 7.26% | NVIDIA Corp 6.37% |
| APPLE 6.73% | Apple Inc 5.88% |
| MICROSOFT 5.21% | Microsoft Corp 3.84% |
| AMAZON.COM INC 3.49% | Amazon.com Inc 3.19% |
| ALPHABET CLASS A 2.77% | Alphabet Inc 2.90% |
| BROADCOM INC 2.40% | Broadcom Inc 2.48% |
| ALPHABET CLASS C 2.24% | Alphabet Inc 2.29% |
| META PLATFORMS CLASS A 2.02% | Micron Technology Inc 1.80% |
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 Jun 30, 2026 and Sep 10, 2026.
| IWB iShares Russell 1000 ETF | VTI Vanguard Total Stock Market Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Russell 1000 | US total market |
| Total return, 1 year | +16.7% | +17.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | −0.3 pts |
| Expense ratio | 0.15% | 0.03% |
| Already in the S&P 500 | 91.9% | 88.3% |
| Holdings | 945 | 3531 |
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%.
VTI in plain words
VTI is an index equity fund tracking the US total market. Over the year to Sep 11, 2026 it returned +17.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 88% of the fund by weight is stocks the S&P 500 also holds, across 3531 positions, with the top ten at 32.1%.
Questions people ask
- Which returned more over the last year, IWB or VTI?
- In the year to Sep 13, 2026, with distributions reinvested, IWB returned +16.7% and VTI returned +17.2%, so VTI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or VTI?
- IWB charges 0.15% a year and VTI charges 0.03%, so VTI is cheaper. Fees come from each fund's prospectus.
- How much do IWB and VTI overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 88% of VTI by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
Other comparisons
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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 VTI, data as of Sep 13, 2026. https://etfiq.com/compare/any/iwb-vs-vti Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources