IDEV vs SPDW overlap - what they share and where they differ
IDEV and SPDW share 77.7% of their weight across 1,544 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.
IDEV and SPDW
77.7%
1,544 shared positions
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
SPDW
State Street(R) SPDR(R) Portfolio Developed World ex-US ETF
Reported positions cover 99% of the fund, 2,285 positions · Jun 30, 2026
Top 10: 14.5%·Holdings of SPDW
Reported positions cover IDEV 98%, SPDW 99% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
SPDW vs IDEV side by side
IDEViShares Core MSCI International Developed Markets ETF
2,125
stock positions reported to the SEC
8.8% of its weight is in 581 names SPDW does not hold
SPDWState Street(R) SPDR(R) Portfolio Developed World ex-US ETF
2,285
stock positions reported to the SEC
17.7% of its weight is in 741 names IDEV does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: SPDW has 2.4 points more of it.
The figures side by side
| IDEV | SPDW | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jun 30, 2026 |
| Stock positions reported | 2,125 | 2,285 |
| Weight of the ten largest | 11.1% | 14.5% |
| Largest position | ASML 2.2% | SAMSUNG ELECTRONICS CO., LTD. 3.1% |
| Held alone | 581 positions, 8.8% | 741 positions, 17.7% |
| Covered by stock positions | 98% | 99% |
Holdings they share
| Stock | In IDEV | In SPDW | Counted |
|---|---|---|---|
| ASMLASML Holding N.V. | 2.19% | 2.28% | 2.19% |
| MUFGMitsubishi Corporation | 1.14% | 1.04% | 1.04% |
| HSBCHSBC HOLDINGS PLC | 1.24% | 0.97% | 0.97% |
| ROCHE HOLDING AG | 1.10% | 0.90% | 0.90% |
| AZNASTRAZENECA PLC | 0.88% | 0.87% | 0.87% |
| NVSNovartis AG | 0.98% | 0.86% | 0.86% |
| RYROYAL BANK OF CANADA | 1.00% | 0.86% | 0.86% |
| NESTLE S.A. | 0.88% | 0.80% | 0.80% |
| NODKNICHIHA CORPORATION | 0.84% | 0.77% | 0.77% |
| SIEMENS AKTIENGESELLSCHAFT | 0.83% | 0.70% | 0.70% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IDEV
Only in SPDW
Questions people ask
Is IDEV the same as SPDW?
77.7% of their weight sits in the same 1,544 holdings. IDEV also reports UNICREDIT, SOCIETA PER AZIONI, COMPAGNIE FINANCIERE RICHEMONT SA, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE SA, which the other does not. SPDW also reports SAMSUNG ELECTRONICS CO., LTD., SKHY, UNICREDIT SPA, which the other does not.
How is the overlap between IDEV and SPDW 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 IDEV and 99% of SPDW, so the number cannot exceed the smaller coverage.
Which holds more, SPDW or IDEV?
IDEV reports 2,125 stock positions and SPDW reports 2,285. 8.8% of IDEV's weight sits in names SPDW does not hold, and 17.7% of SPDW's weight in names IDEV does not hold. The ten largest positions are 11.1% of IDEV and 14.5% of SPDW.
How do IDEV and SPDW differ by sector?
The widest gap is Technology: SPDW has 2.4 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.
Other pairs with these funds
SPDW against other funds in the table
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.