Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
ITOT vs IWB: how they differ
ITOT and IWB hold 93% 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 93% of their money in the same securities at the same weight.
| Holding | ITOT | IWB |
|---|---|---|
| NVIDIA Corp. | 6.64% | 6.73% |
| Apple, Inc. | 5.82% | 6.03% |
| Microsoft Corp. | 3.80% | 4.00% |
| Amazon.com, Inc. | 3.20% | 3.33% |
| Alphabet, Inc. | 2.87% | 3.00% |
| Broadcom, Inc. | 2.45% | 2.54% |
| Alphabet, Inc. | 2.29% | 2.42% |
| Micron Technology, Inc. | 1.78% | 1.88% |
| Meta Platforms, Inc. | 1.70% | 1.79% |
| Tesla, Inc. | 1.62% | 1.77% |
| Eli Lilly & Co. | 1.30% | 1.38% |
| Advanced Micro Devices, Inc. | 1.30% | 1.36% |
| Only in ITOT | Only in IWB |
|---|---|
| Linde plc 0.33% | LINDE PUBLIC LIMITED COMPANY 0.34% |
| Seagate Technology Holdings plc 0.30% | EATON CORPORATION PUBLIC LIMITED COMPANY 0.24% |
| Eaton Corp. plc 0.23% | Chubb Limited 0.17% |
| Chubb Ltd. 0.17% | TRANE TECHNOLOGIES PUBLIC LIMITED COMPAN 0.16% |
| Trane Technologies plc 0.15% | MEDTRONIC PUBLIC LIMITED COMPANY 0.14% |
| Medtronic plc 0.14% | JOHNSON CONTROLS INTERNATIONAL PUBLIC LI 0.13% |
| Johnson Controls International plc 0.12% | ROYAL CARIBBEAN CRUISES LTD. 0.12% |
| Royal Caribbean Cruises Ltd. 0.11% | ACCENTURE PUBLIC LIMITED COMPANY 0.11% |
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 | 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 | 2497 | 1024 |
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%.
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 Jun 30, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1024 positions, with the top ten at 33.5%.
Questions people ask
- Which returned more over the last year, ITOT or IWB?
- In the year to Sep 12, 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, 93% 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, ITOT against IWB, data as of Sep 12, 2026. https://etfiq.com/compare/any/ITOT-IWB Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources