Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
ACWX vs IWO: how they differ
ACWX and IWO hold 0% of their weight in the same names, and ACWX returned more over the year.
iShares MSCI ACWI ex U.S. ETF and iShares Russell 2000 Growth ETF.
What they hold in common
By the books each fund has filed, ACWX and IWO hold 0% of their money in the same securities at the same weight.
| Only in ACWX | Only in IWO |
|---|---|
| Taiwan Semiconductor Manufacturing Compa 4.69% | Moog, Inc. 0.73% |
| ASML Holding N.V. 1.54% | BrightSpring Health Services, Inc. 0.68% |
| SK hynix Inc. 1.33% | MaxLinear, Inc. 0.67% |
| Tencent Holdings Limited 1.07% | Argan, Inc. 0.66% |
| HSBC HOLDINGS PLC 0.86% | JFrog Ltd. 0.60% |
| ASTRAZENECA PLC 0.81% | Krystal Biotech, Inc. 0.58% |
| Alibaba Group Holding Limited 0.79% | ESCO Technologies, Inc. 0.56% |
| Novartis AG 0.77% | FirstCash Holdings, Inc. 0.54% |
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 Apr 30, 2026 and Jun 30, 2026.
| ACWX iShares MSCI ACWI ex U.S. ETF | IWO iShares Russell 2000 Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | MSCI ACWI ex U.S. | Russell 2000 Growth |
| Total return, 1 year | +23.0% | +17.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.5 pts | −0.5 pts |
| Expense ratio | 0.32% | 0.24% |
| Already in the S&P 500 | 0.0% | 0.0% |
| Holdings | 1759 | 1133 |
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 Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1759 positions, with the top ten at 14.6%.
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, ACWX or IWO?
- In the year to Sep 12, 2026, with distributions reinvested, ACWX returned +23.0% and IWO returned +17.0%, so ACWX returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ACWX or IWO?
- ACWX charges 0.32% a year and IWO charges 0.24%, so IWO is cheaper. Fees come from each fund's prospectus.
- How much do ACWX and IWO overlap with the S&P 500?
- By their latest filed holdings, 0% of ACWX and 0% of IWO 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, ACWX against IWO, data as of Sep 12, 2026. https://etfiq.com/compare/any/ACWX-IWO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources