IDEV vs VSGX: Holdings Overlap
IDEViShares Core MSCI International Developed Markets ETF
iShares · 2268 holdings · $31.8B · as of 2026-04-30
VSGXVanguard Esg International Stock ETF
Vanguard · 6576 holdings · $6.5B · as of 2026-05-31
Holdings snapshots are 31 days apart (IDEV: 2026-04-30, VSGX: 2026-05-31). 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 IDEV and VSGX?
iShares Core MSCI International Developed Markets ETF (IDEV, by iShares) holds 2268 positions; Vanguard Esg International Stock ETF (VSGX, by Vanguard) holds 6576. They have 1703 holdings in common, and by portfolio weight the two funds are 58.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 58.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1703IDEV holds 2268 · VSGX holds 6576
- Weight in Shared Holdings
- IDEV 68%·VSGX 59%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
565 of 2268 positions (31.7% of the fund) are not held by VSGX. Showing the top 30 by weight.
Only in VSGX
4873 of 6576 positions (40.0% of the fund) are not held by IDEV. Showing the top 30 by weight.
Sector Breakdown
| Sector | IDEV | VSGX |
|---|---|---|
| Information Technology | 7.8% | 23.0% |
| Financials | 21.8% | 21.8% |
| Industrials | 14.7% | 5.1% |
| Health Care | 7.3% | 6.7% |
| Materials | 6.8% | 3.7% |
| Other Sectors | 24.5% | 15.4% |
| Unclassified | 16.5% | 23.5% |
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, 24% of VSGX).
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% |
| VSGX | +2.2% | +17.2% | +28.7% | +19.1% | +8.5% | — | 2.90% |
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 VSGX →
Shared Holdings(1703)
The top 10 shared positions account for 15% of the overlap, led by ASML, ROP and NOVN.
 ASMLASML Holding NV | 1.94% | 1.90% | 1.90% |
|---|---|---|---|
 ROPRoche Holding AG | 0.99% | 0.90% | 0.90% |
 NOVNNovartis AG (Registered) | 0.97% | 0.87% | 0.87% |
 AZNAstraZeneca PLC ORD USD0.25 | 1.01% | 0.84% | 0.84% |
 RYGovernment Long Bond 1.2x Strategy Fund | 0.87% | 0.81% | 0.81% |
 NESNNestle SA (Registered) | 0.90% | 0.79% | 0.79% |
 SIESiemens AG (Registered) | 0.78% | 0.70% | 0.70% |
 8306Mitsubishi UFJ Financial Group Inc. NPV | 0.70% | 0.63% | 0.63% |
 7203Toyota Motor Corp. NPV | 0.63% | 0.61% | 0.61% |
 CBACommonwealth Bank of Australia | 0.73% | 0.60% | 0.60% |
 SAPSAP SE | 0.60% | 0.56% | 0.56% |
 SANBanco Santander SA | 0.62% | 0.55% | 0.55% |
 ALVAllianz SE (Registered) | 0.60% | 0.51% | 0.51% |
 8035Tokyo Electron Ltd. NPV | 0.45% | 0.45% | 0.45% |
 UBSGUBS Group AG (Registered) | 0.49% | 0.45% | 0.45% |
 SHOPShopify, Inc., Class A | 0.51% | 0.45% | 0.45% |
 NOVOBNovo Nordisk A/S, Class B | 0.47% | 0.44% | 0.44% |
 9984SoftBank Group Corp. | 0.44% | 0.56% | 0.44% |
 8316Sumitomo Mitsui Financial Group Inc. NPV | 0.45% | 0.40% | 0.40% |
 BBVABanco Bilbao Vizcaya Argentaria SA | 0.43% | 0.40% | 0.40% |
 6758Sony Group Corp. NPV | 0.42% | 0.39% | 0.39% |
 UCGUniCredit SpA | 0.37% | 0.40% | 0.37% |
 ULVRUnilever PLC | 0.44% | 0.37% | 0.37% |
 6857Advantest Corp. NPV | 0.49% | 0.36% | 0.36% |
 BMOBank of Montreal COM | 0.37% | 0.35% | 0.35% |
Showing the top 250 of 1703 shared holdings by overlap weight.
Frequently Asked Questions
How much do IDEV and VSGX overlap?
IDEV and VSGX overlap by 58.1% of portfolio weight. They share 1703 holdings (IDEV holds 2268 positions and VSGX holds 6576), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IDEV and VSGX?
The two portfolios are 58.1% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IDEV and VSGX?
The largest positions held by both funds are ASML, ROP, NOVN, AZN and RY. Together the top 10 shared positions account for 15% of the total overlap.
What does IDEV own that VSGX doesn't?
565 positions (31.7% of IDEV) are unique to IDEV, led by HSBA, SHEL and BHP. In the other direction, 4873 positions (40.0% of VSGX) are unique to VSGX.