IWF vs VOX overlap - what they share and where they differ
IWF and VOX share 15.7% of their weight across 16 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.
IWF and VOX
15.7%
16 shared positions
IWF
iShares Russell 1000 Growth ETF
Reported positions cover 100% of the fund, 365 positions · Jun 30, 2026
Top 10: 57.1%·Holdings of IWF
VOX
VANGUARD COMMUNICATION SERVICES INDEX FUND
Reported positions cover 100% of the fund, 106 positions · May 31, 2026
Top 10: 73.9%·Holdings of VOX
Reported positions cover IWF 100%, VOX 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VOX vs IWF side by side
IWFiShares Russell 1000 Growth ETF
365
stock positions reported to the SEC
84.2% of its weight is in 349 names VOX does not hold
VOXVANGUARD COMMUNICATION SERVICES INDEX FUND
106
stock positions reported to the SEC
33.2% of its weight is in 90 names IWF does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Communication Services: VOX has 37.4 points more of it.
The figures side by side
| IWF | VOX | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 365 | 106 |
| Weight of the ten largest | 57.1% | 73.9% |
| Largest position | NVDA 13.8% | GOOGL 26.7% |
| Held alone | 349 positions, 84.2% | 90 positions, 33.2% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWF | In VOX | Counted |
|---|---|---|---|
| GOOGLALPHABET INC. | 11.15% | 26.66% | 11.15% |
| METAMETA PLATFORMS, INC. | 3.00% | 21.05% | 3.00% |
| NFLXNETFLIX, INC. | 0.89% | 4.75% | 0.89% |
| TTWOTAKE-TWO INTERACTIVE SOFTWARE, INC. | 0.14% | 2.08% | 0.14% |
| RBLXROBLOX CORPORATION | 0.10% | 1.36% | 0.10% |
| LYVLIVE NATION ENTERTAINMENT, INC. | 0.09% | 1.64% | 0.09% |
| RDDTREDDIT, INC. | 0.07% | 1.07% | 0.07% |
| ASTSAST SPACEMOBILE, INC. | 0.06% | 1.42% | 0.06% |
| ROKUROKU, INC. | 0.05% | 1.02% | 0.05% |
| ECHOECHOSTAR CORPORATION | 0.04% | 1.09% | 0.04% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWF
Only in VOX
Questions people ask
Is IWF the same as VOX?
15.7% of their weight sits in the same 16 holdings. IWF also reports NVDA, AAPL, AVGO, which the other does not. VOX also reports VZ, DIS, T, which the other does not.
How is the overlap between IWF and VOX 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 IWF and 100% of VOX, so the number cannot exceed the smaller coverage.
Which holds more, VOX or IWF?
IWF reports 365 stock positions and VOX reports 106. 84.2% of IWF's weight sits in names VOX does not hold, and 33.2% of VOX's weight in names IWF does not hold. The ten largest positions are 57.1% of IWF and 73.9% of VOX.
How do IWF and VOX differ by sector?
The widest gap is Communication Services: VOX has 37.4 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
IWF 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.