Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ITOT vs IWC: how they differ
ITOT and IWC hold 0% of their weight in the same names, and IWC returned more over the year.
iShares Core S&P Total U.S. Stock Market ETF and iShares Micro-Cap ETF.
What they hold in common
By the books each fund has filed, ITOT and IWC hold 0% of their money in the same securities at the same weight.
| Holding | ITOT | IWC |
|---|---|---|
| USD CASH | 0.09% | 0.11% |
| BLK CSH FND TREASURY SL AGENCY | 0.07% | 0.03% |
| CASH COLLATERAL MSFUT USD | 0.01% | 0.01% |
| Only in ITOT | Only in IWC |
|---|---|
| NVIDIA 7.32% | CAREDX 0.61% |
| APPLE 6.63% | SELLAS LIFE SCIENCES GROUP INC 0.60% |
| MICROSOFT 5.06% | NURIX THERAPEUTICS 0.59% |
| AMAZON.COM INC 3.41% | PENGUIN SOLUTIONS INC 0.58% |
| ALPHABET CLASS A 2.70% | OUSTER 0.52% |
| BROADCOM INC 2.37% | VIRIDIAN THERAPEUTICS ORS 0.48% |
| ALPHABET CLASS C 2.16% | INTERFACE 0.47% |
| META PLATFORMS CLASS A 1.96% | MBX BIOSCIENCES 0.45% |
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 | IWC iShares Micro-Cap 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 Microcap |
| Total return, 1 year | +17.2% | +31.3% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.3 pts | +13.8 pts |
| Expense ratio | 0.03% | not published |
| Already in the S&P 500 | 88.3% | 91.9% |
| Holdings | 1167 | 1252 |
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%.
IWC in plain words
IWC is an index equity fund tracking the Russell Microcap. Over the year to Sep 11, 2026 it returned +31.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. By its holdings filed for Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1252 positions, with the top ten at 5.1%. It sat 5.0% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, ITOT or IWC?
- In the year to Sep 13, 2026, with distributions reinvested, ITOT returned +17.2% and IWC returned +31.3%, so IWC returned more. One year is one year; the longer windows are in the table.
- How much do ITOT and IWC overlap with the S&P 500?
- By their latest filed holdings, 88% of ITOT and 92% of IWC 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.
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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 IWC, data as of Sep 13, 2026. https://etfiq.com/compare/any/itot-vs-iwc Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources