DFAI vs IDEV overlap - what they share and where they differ
DFAI and IDEV share 82.1% of their weight across 1,773 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.
DFAI and IDEV
82.1%
1,773 shared positions
DFAI
Dimensional International Core Equity Market ETF
Reported positions cover 96% of the fund, 3,269 positions · Jul 31, 2026
Top 10: 9.2%·Holdings of DFAI
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 DFAI 96%, 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 DFAI side by side
DFAIDimensional International Core Equity Market ETF
3,269
stock positions reported to the SEC
2.8% of its weight is in 1,496 names IDEV does not hold
IDEViShares Core MSCI International Developed Markets ETF
2,125
stock positions reported to the SEC
4.7% of its weight is in 352 names DFAI does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IDEV has 2.5 points more of it.
The figures side by side
| DFAI | IDEV | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jul 31, 2026 |
| Stock positions reported | 3,269 | 2,125 |
| Weight of the ten largest | 9.2% | 11.1% |
| Largest position | HSBC 1.2% | ASML 2.2% |
| Held alone | 1,496 positions, 2.8% | 352 positions, 4.7% |
| Covered by stock positions | 96% | 98% |
Holdings they share
| Stock | In DFAI | In IDEV | Counted |
|---|---|---|---|
| HSBCHS Holdings Co.,Ltd. | 1.16% | 1.24% | 1.16% |
| ROCHE HOLDING AG | 1.08% | 1.10% | 1.08% |
| RYROYAL BANK OF CANADA | 0.99% | 1.00% | 0.99% |
| MUFGMitsubishi Corporation | 0.98% | 1.14% | 0.98% |
| SHELSHELL PLC | 1.01% | 0.88% | 0.88% |
| NESTLE S.A. | 0.84% | 0.88% | 0.84% |
| NODKNIRECO CORPORATION | 0.83% | 0.84% | 0.83% |
| AZNASTRAZENECA PLC | 0.81% | 0.88% | 0.81% |
| SUGPSURTECO GROUP SE | 0.83% | 0.66% | 0.66% |
| TDTHE TORONTO-DOMINION BANK | 0.64% | 0.68% | 0.64% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in DFAI
Only in IDEV
Questions people ask
Is DFAI the same as IDEV?
82.1% of their weight sits in the same 1,773 holdings. DFAI also reports WCN, AMRZ, TEVA, which the other does not. IDEV also reports SOFTBANK GROUP CORP, INVESTOR AKTIEBOLAG, SPOT, which the other does not.
How is the overlap between DFAI 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 96% of DFAI and 98% of IDEV, so the number cannot exceed the smaller coverage.
Which holds more, IDEV or DFAI?
DFAI reports 3,269 stock positions and IDEV reports 2,125. 2.8% of DFAI's weight sits in names IDEV does not hold, and 4.7% of IDEV's weight in names DFAI does not hold. The ten largest positions are 9.2% of DFAI and 11.1% of IDEV.
How do DFAI and IDEV differ by sector?
The widest gap is Technology: IDEV has 2.5 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.
Add a third fund in the tool·All fund pairs
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.