Data as of Oct 28, 2026.
ACWI vs IDEV: Differences, Returns & Fees
Over the year to Oct 28, 2026, ACWI and IDEV finished level, +13.4% against +13.4%, and they share 24% of their weight.
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askIQ about ACWI and IDEVNet assets on Oct 28, 2026: $33.0bn for iShares MSCI ACWI ETF and $34.0bn for iShares Core MSCI International Developed Markets ETF.
Pair scorecard
IDEV costs 0.28 points a year less; both returned +13.4% over a year.
| Measure | ACWI | IDEV |
|---|---|---|
| Return | ||
| Total return, 1 year | +13.4% | +13.4% |
| Drawdown | ||
| Below its high | 4.4%, high on Aug 25, 2026 | |
| Benchmark | ||
| What it tracks | MSCI ACWI | MSCI World ex USA Investable Market Index |
| Cost and size | ||
| Expense ratio | 0.32% | 0.04% |
| Net assets | $33.0bn | $34.0bn |
| Holdings | ||
| Holdings in common | 24% | |
| Top ten holdings, share of the fund | 24.9% | 10.9% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Mar 31, 2017 to Oct 23, 2026 · 499 weekly returnsACWI returned more: +195.5% to +127.7%. ACWI swung slightly less: 16.6% to 17.0%. ACWI fell slightly less at its worst: −32.1% to −34.0%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | ACWI | IDEV | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +195.5% | +127.7% | ACWI | Price change plus distributions, reinvested. |
| Annualized | +12.0% | +9.0% | ACWI | Total return as a yearly rate. |
| Price return | +147.9% | +73.6% | ACWI | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 16.6% | 17.0% | ACWI (slight) | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 11.7% | 12.1% | ACWI (slight) | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −32.1% | −34.0% | ACWI (slight) | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.61 | 0.44 | ACWI | Return above Treasury bills per unit of volatility. |
| Sortino | 0.86 | 0.61 | ACWI | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.37 | 0.26 | ACWI | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 499 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ACWI and IDEV hold 24% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
24% in common
Only in one fund ↓
Side by side
ACWI and IDEV on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
ACWI and IDEV do different jobs. What does each one do in a portfolio?
- What each follows. ACWI follows MSCI ACWI and IDEV follows MSCI World ex USA Investable Market Index.
- Holdings in common. 24% of the weight is in the same securities (holdings dated Oct 27, 2026).
- Cost. ACWI charges 0.32% of assets a year and IDEV 0.04%, a gap of 0.28 points.
Data as of Oct 28, 2026.
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ACWI
ACWI tracks the MSCI ACWI. Over the year to Oct 28, 2026 it returned +13.4% with distributions reinvested. The prospectus expense ratio is 0.32% a year. By its holdings published by its issuer for Oct 27, 2026, 61% of the fund by weight is stocks the S&P 500 also holds, across 2,197 positions, with the top ten at 24.9%.
IDEV
IDEV tracks the MSCI International Developed Markets. Over the year to Oct 28, 2026 it returned +13.4% with distributions reinvested, against +14.3% for its benchmark, the MSCI ACWI ex USA Index. The prospectus expense ratio is 0.04% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2,317 positions, with the top ten at 10.9%. It sat 4.4% below its high of Aug 25, 2026 on Oct 28, 2026.
Questions people ask
- Which returned more over the last year, ACWI or IDEV?
- In the year to Oct 28, 2026, with distributions reinvested, ACWI returned +13.4% and IDEV +13.4%.
- Which is cheaper, ACWI or IDEV?
- IDEV is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, ACWI against IDEV, data as of Oct 28, 2026. https://etfiq.com/compare/any/acwi-vs-idev
ETFIQ. (Oct 28, 2026). ACWI against IDEV. Retrieved from https://etfiq.com/compare/any/acwi-vs-idev
[ACWI against IDEV (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/acwi-vs-idev)
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