IOO vs VEA: Holdings Overlap
iShares · 110 holdings · $9.3B · as of 2026-03-31
VEAVanguard Developed Markets Index Fund
Vanguard · 3886 holdings · $235.0B · as of 2026-03-31
How similar are IOO and VEA?
iShares Global 100 ETF (IOO, by iShares) holds 110 positions; Vanguard Developed Markets Index Fund (VEA, by Vanguard) holds 3886. They have 50 holdings in common, and by portfolio weight the two funds are 19.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 19.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 50IOO holds 110 · VEA holds 3886
- Weight in Shared Holdings
- IOO 20%·VEA 23%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 IOO
60 of 110 positions (80.1% of the fund) are not held by VEA. Showing the top 30 by weight.
Only in VEA
3836 of 3886 positions (76.3% of the fund) are not held by IOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IOO | VEA |
|---|---|---|
| Information Technology | 42.3% | 9.9% |
| Financials | 10.0% | 20.4% |
| Industrials | 5.0% | 13.9% |
| Communication Services | 10.1% | 2.7% |
| Health Care | 9.8% | 7.3% |
| Other Sectors | 22.5% | 26.4% |
| Unclassified | 0.0% | 18.5% |
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 (0% of IOO, 19% of VEA).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IOO | +5.6% | +16.0% | +31.2% | +25.4% | +16.4% | +16.6% | 0.80% |
| VEA | +3.0% | +17.5% | +29.9% | +19.8% | +10.2% | +10.3% | 2.49% |
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 IOO vs VEA →
Shared Holdings(50)
The top 10 shared positions account for 48% of the overlap, led by 005930, ASML and AZN.
 005930Samsung Electronics Co Ltd | 1.66% | 1.88% | 1.66% |
|---|---|---|---|
 ASMLASML Holding NV | 1.48% | 1.77% | 1.48% |
 AZNAstraZeneca PLC ORD USD0.25 | 0.87% | 1.01% | 0.87% |
 NOVNNovartis AG (Registered) | 0.84% | 1.01% | 0.84% |
 HSBAHSBC Holdings PLC | 0.81% | 0.97% | 0.81% |
 ROPRoche Holding AG | 0.80% | 0.96% | 0.80% |
 SHELShell PLC | 0.75% | 0.90% | 0.75% |
 NESNNestle SA (Registered) | 0.72% | 0.87% | 0.72% |
 7203Toyota Motor Corp. NPV | 0.70% | 0.76% | 0.70% |
 8306Mitsubishi UFJ Financial Group Inc. NPV | 0.58% | 0.64% | 0.58% |
 TTETotalEnergies SE EUR2.5 | 0.53% | 0.57% | 0.53% |
 BHPBHP Group Ltd. | 0.52% | 0.61% | 0.52% |
 SIESiemens AG (Registered) | 0.51% | 0.61% | 0.51% |
 SAPSAP SE | 0.50% | 0.60% | 0.50% |
 SANBanco Santander SA | 0.48% | 0.56% | 0.48% |
 ALVAllianz SE (Registered) | 0.46% | 0.55% | 0.46% |
 SUSchneider Electric SE | 0.42% | 0.51% | 0.42% |
 MCLVMH Moet Hennessy Louis Vuitton SE | 0.40% | 0.48% | 0.40% |
 DTEDeutsche Telekom AG (Registered) | 0.37% | 0.44% | 0.37% |
 6758Sony Group Corp. NPV | 0.37% | 0.43% | 0.37% |
 ABBNABB Ltd. (Registered) | 0.36% | 0.43% | 0.36% |
 BBVABanco Bilbao Vizcaya Argentaria SA | 0.36% | 0.42% | 0.36% |
 BP-BP plc | 0.35% | 0.42% | 0.35% |
 ULVRUnilever PLC | 0.34% | 0.40% | 0.34% |
 UBSGUBS Group AG (Registered) | 0.34% | 0.42% | 0.34% |
Frequently Asked Questions
How much do IOO and VEA overlap?
IOO and VEA overlap by 19.4% of portfolio weight. They share 50 holdings (IOO holds 110 positions and VEA holds 3886), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IOO and VEA?
The two portfolios are 19.4% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IOO and VEA?
The largest positions held by both funds are 005930, ASML, AZN, NOVN and HSBA. Together the top 10 shared positions account for 48% of the total overlap.
What does IOO own that VEA doesn't?
60 positions (80.1% of IOO) are unique to IOO, led by NVDA, AAPL and MSFT. In the other direction, 3836 positions (76.3% of VEA) are unique to VEA.