Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ACWX vs VOO: how they differ
ACWX and VOO hold 0% of their weight in the same names, and ACWX returned more over the year.
iShares MSCI ACWI ex U.S. ETF and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, ACWX and VOO hold 0% of their money in the same securities at the same weight.
| Only in ACWX | Only in VOO |
|---|---|
| TAIWAN SEMICONDUCTOR MANUFACTURING 5.09% | NVIDIA Corp 7.53% |
| SAMSUNG ELECTRONICS LTD 2.50% | Apple Inc 6.61% |
| SK HYNIX 2.04% | Microsoft Corp 4.31% |
| ASML HOLDING 1.77% | Amazon.com Inc 3.63% |
| HSBC HOLDINGS PLC 0.94% | Alphabet Inc 3.26% |
| TENCENT HOLDINGS 0.88% | Broadcom Inc 2.78% |
| ROCHE PS PAR AG 0.79% | Alphabet Inc 2.60% |
| ROYAL BANK OF CANADA 0.76% | Micron Technology Inc 2.02% |
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 Jun 30, 2026 and Sep 10, 2026.
| ACWX iShares MSCI ACWI ex U.S. ETF | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | MSCI ACWI ex U.S. | S&P 500 |
| Total return, 1 year | +23.0% | +17.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.5 pts | +0.1 pts |
| Expense ratio | 0.32% | 0.03% |
| Already in the S&P 500 | 0.0% | 100.0% |
| Holdings | 1515 | 506 |
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%.
VOO in plain words
VOO is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% 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, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 36.5%.
Questions people ask
- Which returned more over the last year, ACWX or VOO?
- In the year to Sep 13, 2026, with distributions reinvested, ACWX returned +23.0% and VOO returned +17.6%, so ACWX returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ACWX or VOO?
- ACWX charges 0.32% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
- How much do ACWX and VOO overlap with the S&P 500?
- By their latest filed holdings, 0% of ACWX and 100% of VOO 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 VOO, data as of Sep 13, 2026. https://etfiq.com/compare/any/acwx-vs-voo Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources