IDEV vs ONEQ: Holdings Overlap
IDEViShares Core MSCI International Developed Markets ETF
iShares · 2268 holdings · $31.8B · as of 2026-04-30
ONEQFidelity Nasdaq Composite Index ETF
Fidelity · 1022 holdings · $10.8B · as of 2026-05-31
Holdings snapshots are 31 days apart (IDEV: 2026-04-30, ONEQ: 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 ONEQ?
iShares Core MSCI International Developed Markets ETF (IDEV, by iShares) holds 2268 positions; Fidelity Nasdaq Composite Index ETF (ONEQ, by Fidelity) holds 1022. They have 35 holdings in common, and by portfolio weight the two funds are 1.2% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 35IDEV holds 2268 · ONEQ holds 1022
- Weight in Shared Holdings
- IDEV 2%·ONEQ 1%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
2233 of 2268 positions (97.9% of the fund) are not held by ONEQ. Showing the top 30 by weight.
Sector Breakdown
| Sector | IDEV | ONEQ |
|---|---|---|
| Information Technology | 7.8% | 53.0% |
| Financials | 21.8% | 2.8% |
| Communication Services | 3.3% | 15.2% |
| Industrials | 14.7% | 3.1% |
| Consumer Discretionary | 5.1% | 12.5% |
| Other Sectors | 30.2% | 11.3% |
| Unclassified | 16.5% | 1.6% |
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 (17% of IDEV, 2% of ONEQ).
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% |
| ONEQ | +3.3% | +15.4% | +26.6% | +25.1% | +13.6% | +18.8% | 0.51% |
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 IDEV vs ONEQ →
Shared Holdings(35)
The top 10 shared positions account for 76% of the overlap, led by SHOP, FER and NBIS.
 SHOPShopify, Inc., Class A | 0.51% | 0.32% | 0.32% |
|---|---|---|---|
 FERFerrovial N.V. | 0.12% | 0.11% | 0.11% |
 NBISNebius Group N.V., Class A | 0.10% | 0.11% | 0.10% |
 ESLTIL-SElbit Systems Ltd. | 0.09% | 0.09% | 0.09% |
 CCEPCoca-Cola Europacific Partners PLC COM EUR0.01 | 0.07% | 0.09% | 0.07% |
 TSEMIL-STower Semiconductor Ltd | 0.08% | 0.06% | 0.06% |
 LOGNLogitech International S.A., Class R | 0.06% | 0.04% | 0.04% |
 ENLTEnlight Renewable Energy Ltd. | 0.04% | 0.04% | 0.04% |
 NVMIIL-SNova Ltd. | 0.06% | 0.03% | 0.03% |
 TIGOMillicom International Cellular SA COM USD1.50 | 0.03% | 0.03% | 0.03% |
 CHKPCheck Point Software Technologies Ltd. ORD | 0.04% | 0.03% | 0.03% |
 GRABGrab Holdings Ltd., Class A | 0.03% | 0.03% | 0.03% |
 FUTUFutu Holdings Ltd | 0.03% | 0.02% | 0.02% |
 DSGXDescartes Systems Group, Inc. (The) | 0.02% | 0.02% | 0.02% |
 FSVFirstService Corp. | 0.02% | 0.02% | 0.02% |
 SSRMSSR Mining Inc COM | 0.02% | 0.02% | 0.02% |
 CAMTCamtek Ltd/Israel | 0.02% | 0.01% | 0.01% |
 OTEXOpen Text Corp COM NPV | 0.02% | 0.01% | 0.01% |
 MEOHMethanex Corp | 0.02% | 0.01% | 0.01% |
 CIGIColliers International Group Inc | 0.01% | 0.01% | 0.01% |
 ALMAlmonty Industries Inc | 0.02% | 0.01% | 0.01% |
 GLBEGlobal-e Online Ltd | 0.01% | 0.01% | 0.01% |
 MNDYMONDAY COM LTD | 0.01% | 0.01% | 0.01% |
 TRMDTORM PLC | 0.01% | 0.01% | 0.01% |
 KEELKeel Infrastructure Corp | 0.01% | 0.01% | 0.01% |
Frequently Asked Questions
How much do IDEV and ONEQ overlap?
IDEV and ONEQ overlap by 1.2% of portfolio weight. They share 35 holdings (IDEV holds 2268 positions and ONEQ holds 1022), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IDEV and ONEQ?
The two portfolios are 1.2% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IDEV and ONEQ?
The largest positions held by both funds are SHOP, FER, NBIS, ESLTIL-S and CCEP. Together the top 10 shared positions account for 76% of the total overlap.
What does IDEV own that ONEQ doesn't?
2233 positions (97.9% of IDEV) are unique to IDEV, led by ASML, HSBA and AZN. In the other direction, 987 positions (98.3% of ONEQ) are unique to ONEQ.