Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ACWI vs IDEV: how they differ
ACWI and IDEV hold 25% of their weight in the same names.
iShares MSCI ACWI ETF and iShares Core MSCI International Developed Markets ETF.
What they hold in common
By the books each fund has filed, ACWI and IDEV hold 25% of their money in the same securities at the same weight.
| Holding | ACWI | IDEV |
|---|---|---|
| ASML HOLDING | 0.65% | 2.29% |
| HSBC HOLDINGS PLC | 0.35% | 1.22% |
| ROYAL BANK OF CANADA | 0.28% | 0.98% |
| SHELL PLC | 0.26% | 0.91% |
| MITSUBISHI UFJ FINANCIAL GROUP | 0.25% | 0.88% |
| NOVARTIS AG | 0.25% | 0.87% |
| NESTLE SA | 0.24% | 0.85% |
| ASTRAZENECA PLC | 0.23% | 0.83% |
| BHP GROUP LTD | 0.22% | 0.80% |
| SIEMENS N AG | 0.21% | 0.75% |
| ALLIANZ | 0.19% | 0.67% |
| TORONTO DOMINION | 0.19% | 0.69% |
| Only in ACWI | Only in IDEV |
|---|---|
| NVIDIA 4.89% | USD CASH 0.13% |
| APPLE 4.67% | HUDBAY MINERALS 0.04% |
| MICROSOFT 3.38% | IAMGOLD CORP 0.04% |
| AMAZON.COM INC 2.38% | IMI PLC 0.04% |
| ALPHABET CLASS A 1.90% | ACCELLERON N AG 0.03% |
| TAIWAN SEMICONDUCTOR MANUFACTURING 1.86% | ALS 0.03% |
| BROADCOM INC 1.59% | ARITZIA SUBORDINATE VOTING 0.03% |
| ALPHABET CLASS C 1.50% | ASMPT LTD 0.03% |
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.
| ACWI iShares MSCI ACWI ETF | IDEV iShares Core MSCI International Developed Markets ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | MSCI ACWI | Core MSCI International Developed Markets |
| Total return, 1 year | +19.1% | +18.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +1.6 pts | +1.2 pts |
| Expense ratio | 0.32% | 0.04% |
| Already in the S&P 500 | 61.4% | 0.1% |
| Holdings | 1630 | 1782 |
ACWI in plain words
ACWI is an index equity fund tracking the MSCI ACWI. Over the year to Sep 11, 2026 it returned +19.1% 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, 61% of the fund by weight is stocks the S&P 500 also holds, across 1630 positions, with the top ten at 24.6%.
IDEV in plain words
IDEV is an index equity fund tracking the Core MSCI International Developed Markets. Over the year to Sep 11, 2026 it returned +18.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% 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 1782 positions, with the top ten at 10.6%.
Questions people ask
- Which returned more over the last year, ACWI or IDEV?
- In the year to Sep 13, 2026, with distributions reinvested, ACWI returned +19.1% and IDEV returned +18.7%, so ACWI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ACWI or IDEV?
- ACWI charges 0.32% a year and IDEV charges 0.04%, so IDEV is cheaper. Fees come from each fund's prospectus.
- How much do ACWI and IDEV overlap with the S&P 500?
- By their latest filed holdings, 61% of ACWI and 0% of IDEV by weight is stocks the S&P 500 already holds. Between the two funds, 25% 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, ACWI against IDEV, data as of Sep 13, 2026. https://etfiq.com/compare/any/acwi-vs-idev Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources