Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ITOT vs IWB: how they differ
ITOT and IWB hold 97% of their weight in the same names.
iShares Core S&P Total U.S. Stock Market ETF and iShares Russell 1000 ETF.
What they hold in common
By the books each fund has filed, ITOT and IWB hold 97% of their money in the same securities at the same weight.
| Holding | ITOT | IWB |
|---|---|---|
| NVIDIA | 7.32% | 7.26% |
| APPLE | 6.63% | 6.73% |
| MICROSOFT | 5.06% | 5.21% |
| AMAZON.COM INC | 3.41% | 3.49% |
| ALPHABET CLASS A | 2.70% | 2.77% |
| BROADCOM INC | 2.37% | 2.40% |
| ALPHABET CLASS C | 2.16% | 2.24% |
| META PLATFORMS CLASS A | 1.96% | 2.02% |
| MICRON TECHNOLOGY | 1.52% | 1.57% |
| TESLA INC | 1.41% | 1.52% |
| JPMORGAN CHASE & CO | 1.31% | 1.35% |
| BERKSHIRE HATHAWAY INC CLASS B | 1.29% | 1.35% |
| Only in ITOT | Only in IWB |
|---|---|
| SEAGATE TECHNOLOGY HOLDINGS PLC 0.26% | SPOTIFY TECHNOLOGY 0.12% |
| NXP SEMICONDUCTORS NV 0.08% | ANGLOGOLD ASHANTI PLC 0.07% |
| TE CONNECTIVITY PLC 0.08% | NU HOLDINGS CLASS A 0.07% |
| AMRIZE AG 0.03% | RESTAURANTS BRANDS INTERNATIONAL 0.04% |
| 10X GENOMICS CLASS A 0.01% | BROOKFIELD ASSET MANAGEMENT VOTING 0.03% |
| AAR 0.01% | SOUTHERN COPPER CORP 0.03% |
| ABERCROMBIE AND FITCH CLASS A 0.01% | ASCENDIS PHARMA 0.02% |
| ACADEMY SPORTS AND OUTDOORS 0.01% | GFL ENVIRONMENTAL SUBORDINATE VOTI 0.02% |
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.
| ITOT iShares Core S&P Total U.S. Stock Market ETF | IWB iShares Russell 1000 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 1000 |
| Total return, 1 year | +17.2% | +16.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.3 pts | −0.8 pts |
| Expense ratio | 0.03% | 0.15% |
| Already in the S&P 500 | 88.3% | 91.9% |
| Holdings | 1167 | 945 |
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 Sep 10, 2026, 88% of the fund by weight is stocks the S&P 500 also holds, across 1167 positions, with the top ten at 34.6%.
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%.
Questions people ask
- Which returned more over the last year, ITOT or IWB?
- In the year to Sep 13, 2026, with distributions reinvested, ITOT returned +17.2% and IWB returned +16.7%, so ITOT returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ITOT or IWB?
- ITOT charges 0.03% a year and IWB charges 0.15%, so ITOT is cheaper. Fees come from each fund's prospectus.
- How much do ITOT and IWB overlap with the S&P 500?
- By their latest filed holdings, 88% of ITOT and 92% of IWB by weight is stocks the S&P 500 already holds. Between the two funds, 97% 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, ITOT against IWB, data as of Sep 13, 2026. https://etfiq.com/compare/any/itot-vs-iwb Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources