IWO vs VTWO overlap - what they share and where they differ
IWO and VTWO share 43.4% of their weight across 784 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.
IWO and VTWO
43.4%
784 shared positions
IWO
iShares Russell 2000 Growth ETF
Reported positions cover 99% of the fund, 975 positions · Jun 30, 2026
Top 10: 6.1%·Holdings of IWO
VTWO
VANGUARD RUSSELL 2000 INDEX FUND
Reported positions cover 100% of the fund, 1,641 positions · May 31, 2026
Top 10: 7.8%·Holdings of VTWO
Reported positions cover IWO 99%, VTWO 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VTWO vs IWO side by side
IWOiShares Russell 2000 Growth ETF
975
stock positions reported to the SEC
9.7% of its weight is in 191 names VTWO does not hold
VTWOVANGUARD RUSSELL 2000 INDEX FUND
1,641
stock positions reported to the SEC
49.9% of its weight is in 857 names IWO does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Financial Services: VTWO has 13.3 points more of it.
The figures side by side
| IWO | VTWO | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 975 | 1,641 |
| Weight of the ten largest | 6.1% | 7.8% |
| Largest position | MOG.A 0.7% | BE 1.8% |
| Held alone | 191 positions, 9.7% | 857 positions, 49.9% |
| Covered by stock positions | 99% | 100% |
Holdings they share
| Stock | In IWO | In VTWO | Counted |
|---|---|---|---|
| HUTHut 8 Corp. | 0.38% | 0.36% | 0.36% |
| QBTSD-Wave Quantum, Inc. | 0.53% | 0.32% | 0.32% |
| MOG.AMoog, Inc. | 0.73% | 0.30% | 0.30% |
| RIOTRiot Platforms, Inc. | 0.39% | 0.28% | 0.28% |
| AGXArgan, Inc. | 0.66% | 0.26% | 0.26% |
| FCFSFirstCash Holdings, Inc. | 0.53% | 0.26% | 0.26% |
| PRAXPraxis Precision Medicines, Inc. | 0.51% | 0.26% | 0.26% |
| ENSEnerSys | 0.49% | 0.25% | 0.25% |
| RGTIRigetti Computing, Inc. | 0.37% | 0.24% | 0.24% |
| SNEXStoneX Group, Inc. | 0.52% | 0.24% | 0.24% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWO
Only in VTWO
Questions people ask
Is IWO the same as VTWO?
43.4% of their weight sits in the same 784 holdings. IWO also reports FROG, KULICKE & SOFFA INDUSTRIES, INC., NUVALENT, INC., which the other does not. VTWO also reports BE, CRDO, STRL, which the other does not.
How is the overlap between IWO and VTWO measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 99% of IWO and 100% of VTWO, so the number cannot exceed the smaller coverage.
Which holds more, VTWO or IWO?
IWO reports 975 stock positions and VTWO reports 1,641. 9.7% of IWO's weight sits in names VTWO does not hold, and 49.9% of VTWO's weight in names IWO does not hold. The ten largest positions are 6.1% of IWO and 7.8% of VTWO.
How do IWO and VTWO differ by sector?
The widest gap is Financial Services: VTWO has 13.3 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.