IWM vs VTWO overlap - what they share and where they differ
IWM and VTWO share 75.9% of their weight across 1,493 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.
IWM and VTWO
75.9%
1,493 shared positions
IWM
iShares Russell 2000 ETF
Reported positions cover 100% of the fund, 1,785 positions · Jun 30, 2026
Top 10: 3.4%·Holdings of IWM
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 IWM 100%, 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 IWM side by side
IWMiShares Russell 2000 ETF
1,785
stock positions reported to the SEC
10.4% of its weight is in 292 names VTWO does not hold
VTWOVANGUARD RUSSELL 2000 INDEX FUND
1,641
stock positions reported to the SEC
22.4% of its weight is in 148 names IWM does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: VTWO has 6.7 points more of it.
The figures side by side
| IWM | VTWO | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 1,785 | 1,641 |
| Weight of the ten largest | 3.4% | 7.8% |
| Largest position | MOG.A 0.4% | BE 1.8% |
| Held alone | 292 positions, 10.4% | 148 positions, 22.4% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWM | In VTWO | Counted |
|---|---|---|---|
| HUTHut 8 Corp. | 0.37% | 0.36% | 0.36% |
| MOG.AMoog, Inc. | 0.38% | 0.30% | 0.30% |
| CYTKCytokinetics, Inc. | 0.35% | 0.29% | 0.29% |
| VSATViasat, Inc. | 0.35% | 0.29% | 0.29% |
| RIOTRiot Platforms, Inc. | 0.30% | 0.28% | 0.28% |
| UMBFUMB Financial Corp. | 0.33% | 0.28% | 0.28% |
| CTRECareTrust REIT, Inc. | 0.28% | 0.27% | 0.27% |
| QBTSD-Wave Quantum, Inc. | 0.27% | 0.32% | 0.27% |
| AGXArgan, Inc. | 0.34% | 0.26% | 0.26% |
| FCFSFirstCash Holdings, Inc. | 0.28% | 0.26% | 0.26% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWM
Only in VTWO
Questions people ask
Is IWM the same as VTWO?
75.9% of their weight sits in the same 1,493 holdings. IWM also reports FROG, JBTM, KULICKE & SOFFA INDUSTRIES, INC., which the other does not. VTWO also reports BE, CRDO, STRL, which the other does not.
How is the overlap between IWM 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 100% of IWM and 100% of VTWO, so the number cannot exceed the smaller coverage.
Which holds more, VTWO or IWM?
IWM reports 1,785 stock positions and VTWO reports 1,641. 10.4% of IWM's weight sits in names VTWO does not hold, and 22.4% of VTWO's weight in names IWM does not hold. The ten largest positions are 3.4% of IWM and 7.8% of VTWO.
How do IWM and VTWO differ by sector?
The widest gap is Technology: VTWO has 6.7 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.