etf overlap tool · little overlap
IWM vs VNQ overlap
5.7% of IWM and VNQ is the same money, spread over 76 companies both funds hold.
Holdings as of September 30, 2026 · source: iShares (IWM), Vanguard (VNQ) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold IWM and VNQ with other funds or stocks? The free portfolio optimizer opens IWM and VNQ beside the rest of what you own: the companies you hold twice, what the funds cost a year, and where the next deposit should go. No account.
What only one of them gives you
VRTPXVanguard Real Estate II Index Fund14.51%
WELLWelltower Inc9.12%
PLDPrologis Inc6.86%
EQIXEquinix Inc5.65%Where each fund puts its money
IWM and VNQ: what people ask
How much do IWM and VNQ overlap?
5.7% by weight, as of September 30, 2026: little overlap. 76 companies appear in both funds; they make up 5.7% of IWM and 9.0% of VNQ.
Which stocks do IWM and VNQ both hold?
The largest shared positions are CTRE, RHP, TRNO, COMP and MAC. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both IWM and VNQ?
Out of every $100 split evenly between them, about $6 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,895 names only in IWM, 64 only in VNQ. Half in each behaves like 80 equally weighted stocks, against 834 for IWM alone and 21 for VNQ alone. 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. Sector overlap applies the same rule to the issuers' sector labels; "behaves like N equally weighted stocks" is one over the sum of the squared weights.
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.