IOO vs VXUS: Holdings Overlap
iShares · 110 holdings · $9.3B · as of 2026-03-31
VXUSVanguard Total International Stock Index Fund
Vanguard · 8752 holdings · $161.3B · as of 2026-04-30
Holdings snapshots are 30 days apart (IOO: 2026-03-31, VXUS: 2026-04-30). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IOO and VXUS?
iShares Global 100 ETF (IOO, by iShares) holds 110 positions; Vanguard Total International Stock Index Fund (VXUS, by Vanguard) holds 8752. They have 51 holdings in common, and by portfolio weight the two funds are 17.2% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 17.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 51IOO holds 110 · VXUS holds 8752
- Weight in Shared Holdings
- IOO 21%·VXUS 17%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
59 of 110 positions (79.0% of the fund) are not held by VXUS. Showing the top 30 by weight.
Only in VXUS
8701 of 8752 positions (81.6% of the fund) are not held by IOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IOO | VXUS |
|---|---|---|
| Information Technology | 42.3% | 14.7% |
| Financials | 10.0% | 18.3% |
| Industrials | 5.0% | 10.7% |
| Communication Services | 10.1% | 3.4% |
| Health Care | 9.8% | 5.2% |
| Other Sectors | 22.5% | 22.9% |
| Unclassified | 0.0% | 23.6% |
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, 24% of VXUS).
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% |
| VXUS | +3.0% | +16.2% | +27.8% | +18.9% | +9.3% | +9.7% | 2.51% |
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 VXUS →
Shared Holdings(51)
The top 10 shared positions account for 48% of the overlap, led by 005930, ASML and 700.
 005930Samsung Electronics Co Ltd | 1.66% | 1.65% | 1.65% |
|---|---|---|---|
 ASMLASML Holding NV | 1.48% | 1.30% | 1.30% |
 700Tencent Holdings Ltd. | 1.10% | 0.87% | 0.87% |
 HSBAHSBC Holdings PLC | 0.81% | 0.73% | 0.73% |
 ROPRoche Holding AG | 0.80% | 0.67% | 0.67% |
 AZNAstraZeneca PLC ORD USD0.25 | 0.87% | 0.66% | 0.66% |
 NOVNNovartis AG (Registered) | 0.84% | 0.66% | 0.66% |
 NESNNestle SA (Registered) | 0.72% | 0.61% | 0.61% |
 SHELShell PLC | 0.75% | 0.60% | 0.60% |
 SIESiemens AG (Registered) | 0.51% | 0.51% | 0.51% |
 7203Toyota Motor Corp. NPV | 0.70% | 0.47% | 0.47% |
 8306Mitsubishi UFJ Financial Group Inc. NPV | 0.58% | 0.46% | 0.46% |
 BHPBHP Group Ltd. | 0.52% | 0.45% | 0.45% |
 SANBanco Santander SA | 0.48% | 0.42% | 0.42% |
 ALVAllianz SE (Registered) | 0.46% | 0.40% | 0.40% |
 SAPSAP SE | 0.50% | 0.40% | 0.40% |
 SUSchneider Electric SE | 0.42% | 0.40% | 0.40% |
 TTETotalEnergies SE EUR2.5 | 0.53% | 0.39% | 0.39% |
 ABBNABB Ltd. (Registered) | 0.36% | 0.37% | 0.36% |
 UBSGUBS Group AG (Registered) | 0.34% | 0.32% | 0.32% |
 MCLVMH Moet Hennessy Louis Vuitton SE | 0.40% | 0.32% | 0.32% |
 BBVABanco Bilbao Vizcaya Argentaria SA | 0.36% | 0.29% | 0.29% |
 ULVRUnilever PLC | 0.34% | 0.29% | 0.29% |
 BP-BP plc | 0.35% | 0.29% | 0.29% |
 6758Sony Group Corp. NPV | 0.37% | 0.28% | 0.28% |
Frequently Asked Questions
How much do IOO and VXUS overlap?
IOO and VXUS overlap by 17.2% of portfolio weight. They share 51 holdings (IOO holds 110 positions and VXUS holds 8752), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IOO and VXUS?
The two portfolios are 17.2% 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 VXUS?
The largest positions held by both funds are 005930, ASML, 700, HSBA and ROP. Together the top 10 shared positions account for 48% of the total overlap.
What does IOO own that VXUS doesn't?
59 positions (79.0% of IOO) are unique to IOO, led by NVDA, AAPL and MSFT. In the other direction, 8701 positions (81.6% of VXUS) are unique to VXUS.