IWS vs VXF overlap - what they share and where they differ
IWS and VXF share 31.8% of their weight across 406 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.
IWS and VXF
31.8%
406 shared positions
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
VXF
VANGUARD EXTENDED MARKET INDEX FUND
Reported positions cover 100% of the fund, 3,095 positions · Jun 30, 2026
Top 10: 7.6%·Holdings of VXF
Reported positions cover IWS 100%, VXF 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VXF vs IWS side by side
IWSiShares Russell Mid-Cap Value ETF
709
stock positions reported to the SEC
67.9% of its weight is in 303 names VXF does not hold
VXFVANGUARD EXTENDED MARKET INDEX FUND
3,095
stock positions reported to the SEC
56.5% of its weight is in 2,689 names IWS does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: VXF has 8.2 points more of it.
The figures side by side
| IWS | VXF | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 709 | 3,095 |
| Weight of the ten largest | 5.9% | 7.6% |
| Largest position | WARNER BROS DISCOVERY INC 0.6% | SPCX 1.2% |
| Held alone | 303 positions, 67.9% | 2,689 positions, 56.5% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWS | In VXF | Counted |
|---|---|---|---|
| LNGCHENIERE ENERGY INC | 0.46% | 0.59% | 0.46% |
| FERGFERGUSON ENTERPRISES INC | 0.42% | 0.54% | 0.42% |
| SUNBSUNBELT RENTALS HOLDINGS INC | 0.30% | 0.36% | 0.30% |
| MKSIMKS INC | 0.27% | 0.35% | 0.27% |
| ILMNILLUMINA INC | 0.26% | 0.31% | 0.26% |
| TWLOTWILIO INC | 0.25% | 0.37% | 0.25% |
| MKLMARKEL GROUP INC | 0.24% | 0.29% | 0.24% |
| ENTGENTEGRIS INC | 0.23% | 0.32% | 0.23% |
| RPRXROYALTY PHARMA PLC | 0.23% | 0.26% | 0.23% |
| OKTAOKTA INC | 0.22% | 0.27% | 0.22% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWS
Only in VXF
Questions people ask
Is IWS the same as VXF?
31.8% of their weight sits in the same 406 holdings. IWS also reports WARNER BROS DISCOVERY INC, DLR, PSX, which the other does not. VXF also reports SPCX, SNOW, BE, which the other does not.
How is the overlap between IWS and VXF 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 IWS and 100% of VXF, so the number cannot exceed the smaller coverage.
Which holds more, VXF or IWS?
IWS reports 709 stock positions and VXF reports 3,095. 67.9% of IWS's weight sits in names VXF does not hold, and 56.5% of VXF's weight in names IWS does not hold. The ten largest positions are 5.9% of IWS and 7.6% of VXF.
How do IWS and VXF differ by sector?
The widest gap is Technology: VXF has 8.2 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.