IDEV vs VSS: Holdings Overlap
IDEViShares Core MSCI International Developed Markets ETF
iShares · 2268 holdings · $31.8B · as of 2026-04-30
VSSVanguard FTSE All-world Ex-us Small-cap Index Fund
Vanguard · 4810 holdings · $11.7B · as of 2026-04-30
How similar are IDEV and VSS?
iShares Core MSCI International Developed Markets ETF (IDEV, by iShares) holds 2268 positions; Vanguard FTSE All-world Ex-us Small-cap Index Fund (VSS, by Vanguard) holds 4810. They have 938 holdings in common, and by portfolio weight the two funds are 7.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 7.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 938IDEV holds 2268 · VSS holds 4810
- Weight in Shared Holdings
- IDEV 7%·VSS 48%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
1330 of 2268 positions (92.0% of the fund) are not held by VSS. Showing the top 30 by weight.
Only in VSS
3872 of 4810 positions (50.9% of the fund) are not held by IDEV. Showing the top 30 by weight.
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% |
| VSS | +3.4% | +11.3% | +19.8% | +15.6% | +6.0% | +8.0% | 3.14% |
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 VSS →
Shared Holdings(938)
The top 10 shared positions account for 4% of the overlap, led by FTT, ACLN and ATZ.
 FTTFinning International Inc | 0.04% | 0.26% | 0.04% |
|---|---|---|---|
 ACLNAccelleron Industries AG | 0.04% | 0.27% | 0.04% |
 ATZAritzia Inc | 0.04% | 0.27% | 0.04% |
 HBMHudbay Minerals Inc | 0.03% | 0.23% | 0.03% |
 SUBCSubsea 7 SA | 0.03% | 0.22% | 0.03% |
 STBStorebrand ASA | 0.03% | 0.21% | 0.03% |
 GAWGames Workshop Group PLC | 0.03% | 0.23% | 0.03% |
 GTTGaztransport Et Technigaz SA | 0.03% | 0.24% | 0.03% |
 NKTNkt AS DKK20 | 0.03% | 0.21% | 0.03% |
 AIXAAIXTRON SE | 0.03% | 0.17% | 0.03% |
 NDX1Nordex SE | 0.03% | 0.19% | 0.03% |
 IGGIG Group Holdings PLC | 0.03% | 0.18% | 0.03% |
 NXENexGen Energy Ltd | 0.03% | 0.20% | 0.03% |
 SPMSaipem SpA | 0.03% | 0.19% | 0.03% |
 CPXCapital Power Corp | 0.03% | 0.20% | 0.03% |
 SBMOSBM Offshore NV | 0.03% | 0.15% | 0.03% |
 OGCOceanaGold Corp | 0.03% | 0.19% | 0.03% |
 OROR Royalties Inc | 0.03% | 0.19% | 0.03% |
 SOBOSouth Bow Corp | 0.03% | 0.19% | 0.03% |
 TE1RUBTechnip Energies NV | 0.02% | 0.19% | 0.02% |
 LTMCLottomatica Group Spa | 0.02% | 0.19% | 0.02% |
 EGOEldorado Gold Corp | 0.02% | 0.20% | 0.02% |
 NDAAurubis AG | 0.02% | 0.19% | 0.02% |
 RILBARingkjoebing Landbobank A/S | 0.02% | 0.17% | 0.02% |
 KCRKonecranes Oyj | 0.02% | 0.17% | 0.02% |
Showing the top 250 of 938 shared holdings by overlap weight.
Frequently Asked Questions
How much do IDEV and VSS overlap?
IDEV and VSS overlap by 7.4% of portfolio weight. They share 938 holdings (IDEV holds 2268 positions and VSS holds 4810), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IDEV and VSS?
The two portfolios are 7.4% 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 IDEV and VSS?
The largest positions held by both funds are FTT, ACLN, ATZ, HBM and SUBC. Together the top 10 shared positions account for 4% of the total overlap.
What does IDEV own that VSS doesn't?
1330 positions (92.0% of IDEV) are unique to IDEV, led by ASML, HSBA and AZN. In the other direction, 3872 positions (50.9% of VSS) are unique to VSS.