IDEV vs EFA: Holdings Overlap
IDEViShares Core MSCI International Developed Markets ETF
iShares · 2268 holdings · $31.8B · as of 2026-04-30
iShares · 705 holdings · $79.3B · as of 2026-04-30
How similar are IDEV and EFA?
iShares Core MSCI International Developed Markets ETF (IDEV, by iShares) holds 2268 positions; iShares MSCI EAFE ETF (EFA, by iShares) holds 705. They have 705 holdings in common, and by portfolio weight the two funds are 74.8% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 74.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 705IDEV holds 2268 · EFA holds 705
- Weight in Shared Holdings
- IDEV 75%·EFA 99%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 IDEV
1563 of 2268 positions (24.5% of the fund) are not held by EFA. Showing the top 30 by weight.
Only in EFA
Every position in EFA is also held by IDEV, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | IDEV | EFA |
|---|---|---|
| Financials | 21.8% | 23.8% |
| Industrials | 14.7% | 18.5% |
| Health Care | 7.3% | 9.7% |
| Information Technology | 7.8% | 9.1% |
| Consumer Staples | 5.6% | 6.8% |
| Other Sectors | 25.7% | 25.8% |
| Unclassified | 16.5% | 5.5% |
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 (17% of IDEV, 6% of EFA).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IDEV | +4.4% | +14.8% | +25.5% | +18.6% | +9.7% | — | 3.08% |
| EFA | +4.2% | +14.8% | +25.0% | +17.9% | +9.6% | +9.7% | 3.10% |
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 IDEV vs EFA →
Shared Holdings(705)
The top 10 shared positions account for 13% of the overlap, led by ASML, HSBA and AZN.
 ASMLASML Holding NV | 1.94% | 2.58% | 1.94% |
|---|---|---|---|
 HSBAHSBC Holdings PLC | 1.09% | 1.45% | 1.09% |
 AZNAstraZeneca PLC ORD USD0.25 | 1.01% | 1.35% | 1.01% |
 ROPRoche Holding AG | 0.99% | 1.32% | 0.99% |
 NOVNNovartis AG (Registered) | 0.97% | 1.29% | 0.97% |
 SHELShell PLC | 0.90% | 1.19% | 0.90% |
 NESNNestle SA (Registered) | 0.90% | 1.20% | 0.90% |
 SIESiemens AG (Registered) | 0.78% | 1.04% | 0.78% |
 CBACommonwealth Bank of Australia | 0.73% | 0.97% | 0.73% |
 8306Mitsubishi UFJ Financial Group Inc. NPV | 0.70% | 0.93% | 0.70% |
 BHPBHP Group Ltd. | 0.69% | 0.93% | 0.69% |
 TTETotalEnergies SE EUR2.5 | 0.64% | 0.85% | 0.64% |
 7203Toyota Motor Corp. NPV | 0.63% | 0.84% | 0.63% |
 SANBanco Santander SA | 0.62% | 0.82% | 0.62% |
 SAPSAP SE | 0.60% | 0.81% | 0.60% |
 SUSchneider Electric SE | 0.60% | 0.80% | 0.60% |
 ALVAllianz SE (Registered) | 0.60% | 0.80% | 0.60% |
 ENRSiemens Energy AG | 0.57% | 0.76% | 0.57% |
 ABBNABB Ltd. (Registered) | 0.55% | 0.73% | 0.55% |
 IBEIberdrola SA | 0.52% | 0.69% | 0.52% |
 6501Hitachi Ltd. NPV | 0.50% | 0.67% | 0.50% |
 6857Advantest Corp. NPV | 0.49% | 0.66% | 0.49% |
 UBSGUBS Group AG (Registered) | 0.49% | 0.65% | 0.49% |
 NOVOBNovo Nordisk A/S, Class B | 0.47% | 0.63% | 0.47% |
 RR-Rolls-Royce Holdings PLC | 0.47% | 0.62% | 0.47% |
Showing the top 250 of 705 shared holdings by overlap weight.
Frequently Asked Questions
How much do IDEV and EFA overlap?
IDEV and EFA overlap by 74.8% of portfolio weight. They share 705 holdings (IDEV holds 2268 positions and EFA holds 705), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IDEV and EFA?
The two portfolios are 74.8% 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 IDEV and EFA?
The largest positions held by both funds are ASML, HSBA, AZN, ROP and NOVN. Together the top 10 shared positions account for 13% of the total overlap.
What does IDEV own that EFA doesn't?
1563 positions (24.5% of IDEV) are unique to IDEV, led by RY, TD and SHOP. In the other direction, 0 positions (0.0% of EFA) are unique to EFA.