Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
ITOT vs IWO: how they differ
ITOT and IWO hold 3% of their weight in the same names.
iShares Core S&P Total U.S. Stock Market ETF and iShares Russell 2000 Growth ETF.
What they hold in common
By the books each fund has filed, ITOT and IWO hold 3% of their money in the same securities at the same weight.
| Holding | ITOT | IWO |
|---|---|---|
| Moog, Inc. | 0.02% | 0.73% |
| Cytokinetics, Inc. | 0.02% | 0.07% |
| Hut 8 Corp. | 0.02% | 0.38% |
| Argan, Inc. | 0.01% | 0.66% |
| BrightSpring Health Services, Inc. | 0.01% | 0.68% |
| MaxLinear, Inc. | 0.01% | 0.67% |
| Krystal Biotech, Inc. | 0.01% | 0.58% |
| UMB Financial Corp. | 0.01% | 0.05% |
| Riot Platforms, Inc. | 0.01% | 0.39% |
| Alkermes plc | 0.01% | 0.42% |
| D-Wave Quantum, Inc. | 0.01% | 0.53% |
| ESCO Technologies, Inc. | 0.01% | 0.56% |
| Only in ITOT | Only in IWO |
|---|---|
| NVIDIA Corp. 6.64% | JFrog Ltd. 0.60% |
| Apple, Inc. 5.82% | Xenon Pharmaceuticals, Inc. 0.36% |
| Microsoft Corp. 3.80% | Constellium SE 0.26% |
| Amazon.com, Inc. 3.20% | Energy Fuels, Inc. 0.22% |
| Alphabet, Inc. 2.87% | Marex Group plc 0.17% |
| Broadcom, Inc. 2.45% | Kiniksa Pharmaceuticals International pl 0.17% |
| Alphabet, Inc. 2.29% | Establishment Labs Holdings, Inc. 0.14% |
| Micron Technology, Inc. 1.78% | Super Group SGHC Ltd. 0.13% |
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.
| ITOT iShares Core S&P Total U.S. Stock Market ETF | IWO iShares Russell 2000 Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | Core S&P Total U.S. Stock Market | Russell 2000 Growth |
| Total return, 1 year | +17.2% | +17.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.3 pts | −0.5 pts |
| Expense ratio | 0.03% | 0.24% |
| Already in the S&P 500 | 88.3% | 0.0% |
| Holdings | 2497 | 1133 |
ITOT in plain words
ITOT is an index equity fund tracking the Core S&P Total U.S. Stock 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 2497 positions, with the top ten at 32.2%.
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.
Questions people ask
- Which returned more over the last year, ITOT or IWO?
- In the year to Sep 12, 2026, with distributions reinvested, ITOT returned +17.2% and IWO returned +17.0%, so ITOT returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ITOT or IWO?
- ITOT charges 0.03% a year and IWO charges 0.24%, so ITOT is cheaper. Fees come from each fund's prospectus.
- How much do ITOT and IWO overlap with the S&P 500?
- By their latest filed holdings, 88% of ITOT and 0% of IWO 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.
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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, ITOT against IWO, data as of Sep 12, 2026. https://etfiq.com/compare/any/ITOT-IWO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources