Data as of Oct 28, 2026.
IDEV vs IWB: Differences, Returns & Fees
Over the year to Oct 28, 2026, IDEV returned +13.4% to IWB's +13.1%; 1% of their weight is in the same names.
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askIQ about IDEV and IWBNet assets on Oct 28, 2026: $34.0bn for iShares Core MSCI International Developed Markets ETF and $49.1bn for iShares Russell 1000 ETF.
Pair scorecard
IDEV costs 0.11 points a year less; their one-year returns differ by 0.3 points; IWB is 1.4 times larger.
| Measure | IDEV | IWB |
|---|---|---|
| Return | ||
| Total return, 1 year | +13.4% | +13.1% |
| Drawdown | ||
| Below its high | 4.4%, high on Aug 25, 2026 | |
| Benchmark | ||
| What it tracks | MSCI World ex USA Investable Market Index | Russell 1000 Index |
| Cost and size | ||
| Expense ratio | 0.04% | 0.15% |
| Net assets | $34.0bn | $49.1bn |
| Holdings | ||
| Holdings in common | 1% | |
| Top ten holdings, share of the fund | 10.9% | 35.3% |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, IDEV and IWB hold 1% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
1% in common
Only in one fund ↓
Side by side
IDEV and IWB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
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.
IWB
IWB tracks the Russell 1000. Over the year to Oct 28, 2026 it returned +13.1% with distributions reinvested, against +13.2% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 35.3%.
Questions people ask
- Which returned more over the last year, IDEV or IWB?
- In the year to Oct 28, 2026, with distributions reinvested, IDEV returned +13.4% and IWB +13.1%.
- Which is cheaper, IDEV or IWB?
- IDEV is cheaper, by 0.11 percentage points a year. That is about $11 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, IDEV against IWB, data as of Oct 28, 2026. https://etfiq.com/compare/any/idev-vs-iwb
ETFIQ. (Oct 28, 2026). IDEV against IWB. Retrieved from https://etfiq.com/compare/any/idev-vs-iwb
[IDEV against IWB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/idev-vs-iwb)
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