EFA vs IDEV overlap - what they share and where they differ
EFA and IDEV share 74.8% of their weight across 628 common positions, read from what each fund reported to the SEC.
Each week Ploutos reads the reported positions of the largest US equity ETFs and measures, pair by pair, the weight they share: for every stock both funds hold, the smaller of the two weights counts. Two funds tracking the same index land near 100%. A sector fund inside a broad index fund lands at roughly that sector's weight.
EFA and IDEV
74.8%
628 shared positions
EFA
iShares MSCI EAFE ETF
Reported positions cover 98% of the fund, 628 positions · Jul 31, 2026
Top 10: 14.4%·Holdings of EFA
IDEV
iShares Core MSCI International Developed Markets ETF
Reported positions cover 98% of the fund, 2,125 positions · Jul 31, 2026
Top 10: 11.1%·Holdings of IDEV
Reported positions cover EFA 98%, IDEV 98% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
IDEV vs EFA side by side
EFAiShares MSCI EAFE ETF
628
stock positions reported to the SEC
0.0% of its weight is in 0 names IDEV does not hold
IDEViShares Core MSCI International Developed Markets ETF
2,125
stock positions reported to the SEC
23.1% of its weight is in 1,497 names EFA does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Basic Materials: IDEV has 3.4 points more of it.
The figures side by side
| EFA | IDEV | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jul 31, 2026 |
| Stock positions reported | 628 | 2,125 |
| Weight of the ten largest | 14.4% | 11.1% |
| Largest position | ASML 2.9% | ASML 2.2% |
| Held alone | 0 positions, 0.0% | 1,497 positions, 23.1% |
| Covered by stock positions | 98% | 98% |
Holdings they share
| Stock | In EFA | In IDEV | Counted |
|---|---|---|---|
| ASMLASML Holding N.V. | 2.90% | 2.19% | 2.19% |
| HSBCHSBC HOLDINGS PLC | 1.66% | 1.24% | 1.24% |
| MUFGMitsubishi Corporation | 1.49% | 1.14% | 1.14% |
| ROCHE HOLDING AG | 1.45% | 1.10% | 1.10% |
| NVSNovartis AG | 1.30% | 0.98% | 0.98% |
| AZNASTRAZENECA PLC | 1.17% | 0.88% | 0.88% |
| NESTLE S.A. | 1.17% | 0.88% | 0.88% |
| SHELSHELL PLC | 1.17% | 0.88% | 0.88% |
| SIEMENS AKTIENGESELLSCHAFT | 1.10% | 0.83% | 0.83% |
| BHPBHP GROUP LIMITED | 0.97% | 0.73% | 0.73% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in EFA
Nothing among its reported positions that the others do not also hold.
Only in IDEV
Questions people ask
Is EFA the same as IDEV?
74.8% of their weight sits in the same 628 holdings. Among its reported positions, EFA holds nothing the other does not also hold. IDEV also reports RY, TD, SHOP, which the other does not.
How is the overlap between EFA and IDEV measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 98% of EFA and 98% of IDEV, so the number cannot exceed the smaller coverage.
Which holds more, IDEV or EFA?
EFA reports 628 stock positions and IDEV reports 2,125. 0.0% of EFA's weight sits in names IDEV does not hold, and 23.1% of IDEV's weight in names EFA does not hold. The ten largest positions are 14.4% of EFA and 11.1% of IDEV.
How do EFA and IDEV differ by sector?
The widest gap is Basic Materials: IDEV has 3.4 points more of it. Sectors come from each holding's SIC code in its SEC record, summed by the weight the fund reports.
Where do the numbers come from?
From each fund's own N-PORT filing to the SEC, which lists every position and its weight. The comparison uses every equity position the fund reports; cash, futures and bonds are not counted, which is why a coverage figure sits next to every result. Holdings change between filings.
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Descriptive data from public SEC filings. Nothing on this page is a recommendation to buy, sell or hold any fund or stock, and holdings change between filings.