IWV vs OEF overlap - what they share and where they differ
IWV and OEF share 53.9% of their weight across 45 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.
IWV and OEF
53.9%
45 shared positions
IWV
iShares Russell 3000 ETF
Reported positions cover 56% of the fund, 49 positions · Jun 30, 2026
Top 10: 33.3%·Holdings of IWV
OEF
iShares S&P 100 ETF
Reported positions cover 100% of the fund, 100 positions · Jun 30, 2026
Top 10: 52.8%·Holdings of OEF
Reported positions cover IWV 56%, OEF 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
OEF vs IWV side by side
IWViShares Russell 3000 ETF
49
stock positions reported to the SEC
1.7% of its weight is in 4 names OEF does not hold
OEFiShares S&P 100 ETF
100
stock positions reported to the SEC
14.7% of its weight is in 55 names IWV does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: OEF has 20.9 points more of it.
The figures side by side
| IWV | OEF | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 49 | 100 |
| Weight of the ten largest | 33.3% | 52.8% |
| Largest position | NVDA 6.4% | NVDA 10.5% |
| Held alone | 4 positions, 1.7% | 55 positions, 14.7% |
| Covered by stock positions | 56% | 100% |
Holdings they share
| Stock | In IWV | In OEF | Counted |
|---|---|---|---|
| NVDANVIDIA CORP | 6.43% | 10.47% | 6.43% |
| AAPLAPPLE INC | 5.76% | 9.18% | 5.76% |
| GOOGLALPHABET INC | 5.18% | 8.14% | 5.18% |
| MSFTMICROSOFT CORP | 3.82% | 5.99% | 3.82% |
| AMZNAMAZON.COM INC | 3.19% | 5.04% | 3.19% |
| AVGOBROADCOM INC | 2.42% | 3.86% | 2.42% |
| MUMICRON TECHNOLOGY INC | 1.79% | 2.81% | 1.79% |
| METAMETA PLATFORMS INC | 1.71% | 2.67% | 1.71% |
| TSLATESLA INC | 1.69% | 2.56% | 1.69% |
| LLYELI LILLY & COMPANY | 1.32% | 2.05% | 1.32% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWV
Only in OEF
Questions people ask
Is IWV the same as OEF?
53.9% of their weight sits in the same 45 holdings. IWV also reports KLAC, SNDK, PANW, which the other does not. OEF also reports MS, AMGN, QCOM, which the other does not.
How is the overlap between IWV and OEF measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 56% of IWV and 100% of OEF, so the number cannot exceed the smaller coverage.
Which holds more, OEF or IWV?
IWV reports 49 stock positions and OEF reports 100. 1.7% of IWV's weight sits in names OEF does not hold, and 14.7% of OEF's weight in names IWV does not hold. The ten largest positions are 33.3% of IWV and 52.8% of OEF.
How do IWV and OEF differ by sector?
The widest gap is Technology: OEF has 20.9 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.