etf overlap · little overlap
IWM vs VWO overlap
IWM and VWO hold no company in common.
Holdings as of August 31, 2026 · source: iShares (IWM), Vanguard (VWO)
- same money
- same companies, extra weight
- only in this fund
What only one of them gives you
Where each fund puts its money
IWM and VWO: what people ask
How much do IWM and VWO overlap?
0.0% by weight, as of August 31, 2026: little overlap. 0 companies appear in both funds; they make up 0.0% of IWM and 0.0% of VWO.
Which stocks do IWM and VWO both hold?
None. IWM and VWO have no holding in common.
Is it redundant to hold both IWM and VWO?
Out of every $100 split evenly between them, about $0 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,975 names only in IWM, 4,996 only in VWO. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
How is ETF overlap calculated here?
For every company held by both funds we take the smaller of its two weights and add them up. The weights come from the full holdings files iShares and Vanguard publish, not a top-10 sample, and companies are matched by their ISIN so share classes stay apart.
Weights come from each issuer's published holdings file and are matched company by company on their ISIN. Cash, futures and currency positions are left out. This page describes what the funds hold; it is not investment advice.