etf overlap · moderate overlap
RSP vs VO overlap
46% of RSP and VO is the same money, spread over 241 companies both funds hold.
Holdings as of September 30, 2026 · source: Invesco (RSP), Vanguard (VO) · How we measured all 1,035 pairs
- same money
- same companies, extra weight
- only in this fund
The companies you would own twice
What only one of them gives you
Where each fund puts its money
RSP and VO: what people ask
How much do RSP and VO overlap?
46% by weight, as of September 30, 2026: moderate overlap. 241 companies appear in both funds; they make up 48% of RSP and 91% of VO.
Which stocks do RSP and VO both hold?
The largest shared positions are MRNA, MTD, MPC, NTAP and A. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both RSP and VO?
Out of every $100 split evenly between them, about $46 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 264 names only in RSP, 30 only in VO. Half in each behaves like 381 equally weighted stocks, against 498 for RSP alone and 206 for VO 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 Invesco 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.