Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWO vs VTI: how they differ
IWO and VTI hold 3% of their weight in the same names.
iShares Russell 2000 Growth ETF and Vanguard Total Stock Market Index Fund.
What they hold in common
By the books each fund has filed, IWO and VTI hold 3% of their money in the same securities at the same weight.
| Holding | IWO | VTI |
|---|---|---|
| Moog, Inc. | 0.73% | 0.02% |
| BrightSpring Health Services, Inc. | 0.68% | 0.02% |
| Cytokinetics, Inc. | 0.07% | 0.02% |
| Hut 8 Corp. | 0.38% | 0.02% |
| Argan, Inc. | 0.66% | 0.01% |
| MaxLinear, Inc. | 0.67% | 0.01% |
| Krystal Biotech, Inc. | 0.58% | 0.01% |
| UMB Financial Corp. | 0.05% | 0.01% |
| Cipher Digital, Inc. | 0.50% | 0.01% |
| Compass, Inc. | 0.45% | 0.01% |
| ESCO Technologies, Inc. | 0.56% | 0.01% |
| Praxis Precision Medicines, Inc. | 0.51% | 0.01% |
| Only in IWO | Only in VTI |
|---|---|
| JFrog Ltd. 0.60% | NVIDIA Corp 6.37% |
| Alkermes plc 0.42% | Apple Inc 5.88% |
| Kulicke & Soffa Industries, Inc. 0.42% | Microsoft Corp 3.84% |
| Definium Therapeutics, Inc. 0.36% | Amazon.com Inc 3.19% |
| Joby Aviation, Inc. 0.36% | Alphabet Inc 2.90% |
| Xenon Pharmaceuticals, Inc. 0.36% | Broadcom Inc 2.48% |
| Noble Corp. plc 0.27% | Alphabet Inc 2.29% |
| Constellium SE 0.26% | 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.
| IWO iShares Russell 2000 Growth ETF | VTI Vanguard Total Stock Market Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Russell 2000 Growth | US total market |
| Total return, 1 year | +17.0% | +17.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.5 pts | −0.3 pts |
| Expense ratio | 0.24% | 0.03% |
| Already in the S&P 500 | 0.0% | 88.3% |
| Holdings | 1133 | 3531 |
IWO in plain words
IWO is an index equity fund tracking the Russell 2000 Growth. Over the year to Sep 11, 2026 it returned +17.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.24% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1133 positions, with the top ten at 6.1%. It sat 7.1% below its high of Aug 14, 2026 on Sep 11, 2026.
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, IWO or VTI?
- In the year to Sep 12, 2026, with distributions reinvested, IWO returned +17.0% and VTI returned +17.2%, so VTI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWO or VTI?
- IWO charges 0.24% a year and VTI charges 0.03%, so VTI is cheaper. Fees come from each fund's prospectus.
- How much do IWO and VTI overlap with the S&P 500?
- By their latest filed holdings, 0% of IWO and 88% of VTI by weight is stocks the S&P 500 already holds. Between the two funds, 3% of their books are the same securities at the same weight.
Other comparisons
Where to next
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, IWO against VTI, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWO-VTI Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources