ACWX vs IDEV: Holdings Overlap
ACWXiShares MSCI ACWI ex U.S. ETF
iShares · 1761 holdings · $11.7B · as of 2026-04-30
IDEViShares Core MSCI International Developed Markets ETF
iShares · 2268 holdings · $31.8B · as of 2026-04-30
How similar are ACWX and IDEV?
iShares MSCI ACWI ex U.S. ETF (ACWX, by iShares) holds 1761 positions; iShares Core MSCI International Developed Markets ETF (IDEV, by iShares) holds 2268. They have 788 holdings in common, and by portfolio weight the two funds are 67.2% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 67.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 788ACWX holds 1761 · IDEV holds 2268
- Weight in Shared Holdings
- ACWX 67%·IDEV 85%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in ACWX
973 of 1761 positions (32.4% of the fund) are not held by IDEV. Showing the top 30 by weight.
Sector Breakdown
| Sector | ACWX | IDEV |
|---|---|---|
| Financials | 21.6% | 21.8% |
| Information Technology | 17.5% | 7.8% |
| Industrials | 12.5% | 14.7% |
| Health Care | 6.1% | 7.3% |
| Materials | 5.8% | 6.8% |
| Other Sectors | 24.6% | 24.5% |
| Unclassified | 11.4% | 16.5% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (11% of ACWX, 17% of IDEV).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ACWX | +3.0% | +16.6% | +28.7% | +19.1% | +9.3% | +9.6% | 2.46% |
| IDEV | +4.4% | +14.8% | +25.5% | +18.6% | +9.7% | — | 3.08% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in ACWX vs IDEV →
Shared Holdings(788)
The top 10 shared positions account for 12% of the overlap, led by ASML, HSBA and AZN.
 ASMLASML Holding NV | 1.54% | 1.94% | 1.54% |
|---|---|---|---|
 HSBAHSBC Holdings PLC | 0.86% | 1.09% | 0.86% |
 AZNAstraZeneca PLC ORD USD0.25 | 0.80% | 1.01% | 0.80% |
 ROPRoche Holding AG | 0.78% | 0.99% | 0.78% |
 NOVNNovartis AG (Registered) | 0.76% | 0.97% | 0.76% |
 NESNNestle SA (Registered) | 0.71% | 0.90% | 0.71% |
 SHELShell PLC | 0.71% | 0.90% | 0.71% |
 RYGovernment Long Bond 1.2x Strategy Fund | 0.69% | 0.87% | 0.69% |
 SIESiemens AG (Registered) | 0.62% | 0.78% | 0.62% |
 CBACommonwealth Bank of Australia | 0.57% | 0.73% | 0.57% |
 8306Mitsubishi UFJ Financial Group Inc. NPV | 0.57% | 0.70% | 0.57% |
 BHPBHP Group Ltd. | 0.55% | 0.69% | 0.55% |
 7203Toyota Motor Corp. NPV | 0.51% | 0.63% | 0.51% |
 TTETotalEnergies SE EUR2.5 | 0.50% | 0.64% | 0.50% |
 TDThe Toronto-Dominion Bank COM NEW | 0.50% | 0.63% | 0.50% |
 SANBanco Santander SA | 0.49% | 0.62% | 0.49% |
 SAPSAP SE | 0.48% | 0.60% | 0.48% |
 SUSchneider Electric SE | 0.47% | 0.60% | 0.47% |
 ALVAllianz SE (Registered) | 0.47% | 0.60% | 0.47% |
 ENRSiemens Energy AG | 0.45% | 0.57% | 0.45% |
 ABBNABB Ltd. (Registered) | 0.44% | 0.55% | 0.44% |
 6501Hitachi Ltd. NPV | 0.41% | 0.50% | 0.41% |
 IBEIberdrola SA | 0.41% | 0.52% | 0.41% |
 SHOPShopify, Inc., Class A | 0.40% | 0.51% | 0.40% |
 6857Advantest Corp. NPV | 0.39% | 0.49% | 0.39% |
Showing the top 250 of 788 shared holdings by overlap weight.
Frequently Asked Questions
How much do ACWX and IDEV overlap?
ACWX and IDEV overlap by 67.2% of portfolio weight. They share 788 holdings (ACWX holds 1761 positions and IDEV holds 2268), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ACWX and IDEV?
The two portfolios are 67.2% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of ACWX and IDEV?
The largest positions held by both funds are ASML, HSBA, AZN, ROP and NOVN. Together the top 10 shared positions account for 12% of the total overlap.
What does ACWX own that IDEV doesn't?
973 positions (32.4% of ACWX) are unique to ACWX, led by TSMWF, 005930 and 000660. In the other direction, 1480 positions (14.0% of IDEV) are unique to IDEV.