Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ACWX vs IWC: how they differ
ACWX and IWC hold 0% of their weight in the same names, and IWC returned more over the year.
iShares MSCI ACWI ex U.S. ETF and iShares Micro-Cap ETF.
What they hold in common
By the books each fund has filed, ACWX and IWC hold 0% of their money in the same securities at the same weight.
| Holding | ACWX | IWC |
|---|---|---|
| COMMERZBANK AG | 0.08% | 0.07% |
| ERSTE GROUP BANK AG | 0.12% | 0.07% |
| BARRICK MINING | 0.19% | 0.06% |
| 3I GROUP PLC | 0.09% | 0.04% |
| MAGNA INTERNATIONAL | 0.04% | 0.08% |
| BLK CSH FND TREASURY SL AGENCY | 0.11% | 0.03% |
| TELSTRA GROUP | 0.03% | 0.06% |
| CAPITALAND ASCENDAS REIT | 0.02% | 0.03% |
| INDRA SISTEMAS SA | 0.02% | 0.11% |
| LAND SECURITIES GROUP REIT PLC | 0.02% | 0.09% |
| JULIUS BAER GRUPPE AG | 0.05% | 0.01% |
| Only in ACWX | Only in IWC |
|---|---|
| TAIWAN SEMICONDUCTOR MANUFACTURING 5.09% | CAREDX 0.61% |
| SAMSUNG ELECTRONICS LTD 2.50% | SELLAS LIFE SCIENCES GROUP INC 0.60% |
| SK HYNIX 2.04% | NURIX THERAPEUTICS 0.59% |
| ASML HOLDING 1.77% | PENGUIN SOLUTIONS INC 0.58% |
| HSBC HOLDINGS PLC 0.94% | OUSTER 0.52% |
| TENCENT HOLDINGS 0.88% | VIRIDIAN THERAPEUTICS ORS 0.48% |
| ROCHE PS PAR AG 0.79% | INTERFACE 0.47% |
| ROYAL BANK OF CANADA 0.76% | 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.
| ACWX iShares MSCI ACWI ex U.S. ETF | IWC iShares Micro-Cap ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | MSCI ACWI ex U.S. | Russell Microcap |
| Total return, 1 year | +23.0% | +31.3% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.5 pts | +13.8 pts |
| Expense ratio | 0.32% | not published |
| Already in the S&P 500 | 0.0% | 91.9% |
| Holdings | 1515 | 1252 |
ACWX in plain words
ACWX is an index equity fund tracking the MSCI ACWI ex U.S.. Over the year to Sep 11, 2026 it returned +23.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.32% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1515 positions, with the top ten at 16.1%.
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, ACWX or IWC?
- In the year to Sep 13, 2026, with distributions reinvested, ACWX returned +23.0% and IWC returned +31.3%, so IWC returned more. One year is one year; the longer windows are in the table.
- How much do ACWX and IWC overlap with the S&P 500?
- By their latest filed holdings, 0% of ACWX 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.
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, ACWX against IWC, data as of Sep 13, 2026. https://etfiq.com/compare/any/acwx-vs-iwc Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources