IWD vs IWS overlap - what they share and where they differ
IWD and IWS share 28.1% of their weight across 697 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.
IWD and IWS
28.1%
697 shared positions
IWD
iShares Russell 1000 Value ETF
Reported positions cover 100% of the fund, 858 positions · Jun 30, 2026
Top 10: 27.8%·Holdings of IWD
IWS
iShares Russell Mid-Cap Value ETF
Reported positions cover 100% of the fund, 709 positions · Jun 30, 2026
Top 10: 5.9%·Holdings of IWS
Reported positions cover IWD 100%, IWS 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
IWS vs IWD side by side
IWDiShares Russell 1000 Value ETF
858
stock positions reported to the SEC
71.7% of its weight is in 161 names IWS does not hold
IWSiShares Russell Mid-Cap Value ETF
709
stock positions reported to the SEC
1.5% of its weight is in 12 names IWD does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IWD has 7.5 points more of it.
The figures side by side
| IWD | IWS | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 858 | 709 |
| Weight of the ten largest | 27.8% | 5.9% |
| Largest position | AMZN 5.9% | WARNER BROS DISCOVERY INC 0.6% |
| Held alone | 161 positions, 71.7% | 12 positions, 1.5% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWD | In IWS | Counted |
|---|---|---|---|
| DLRDIGITAL REALTY TRUST, INC. | 0.18% | 0.62% | 0.18% |
| PSXPHILLIPS 66 | 0.18% | 0.62% | 0.18% |
| WARNER BROS DISCOVERY INCWARNER BROS. DISCOVERY, INC. | 0.18% | 0.63% | 0.18% |
| ALLTHE ALLSTATE CORPORATION | 0.17% | 0.60% | 0.17% |
| FLEXFLEX LTD. | 0.17% | 0.58% | 0.17% |
| HPEHEWLETT PACKARD ENTERPRISE COMPANY | 0.17% | 0.59% | 0.17% |
| KMIKINDER MORGAN, INC. | 0.17% | 0.61% | 0.17% |
| AMEAMETEK, INC. | 0.16% | 0.54% | 0.16% |
| COHRCoherent Corp. | 0.16% | 0.54% | 0.16% |
| CTVACORTEVA, INC. | 0.16% | 0.56% | 0.16% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWD
Only in IWS
Questions people ask
Is IWD the same as IWS?
28.1% of their weight sits in the same 697 holdings. IWD also reports AMZN, AAPL, MSFT, which the other does not. IWS also reports IRON MOUNTAIN INC (REIT), FWONA, JBHT, which the other does not.
How is the overlap between IWD and IWS measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 100% of IWD and 100% of IWS, so the number cannot exceed the smaller coverage.
Which holds more, IWS or IWD?
IWD reports 858 stock positions and IWS reports 709. 71.7% of IWD's weight sits in names IWS does not hold, and 1.5% of IWS's weight in names IWD does not hold. The ten largest positions are 27.8% of IWD and 5.9% of IWS.
How do IWD and IWS differ by sector?
The widest gap is Technology: IWD has 7.5 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.
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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.