etf overlap · nearly the same fund
SPY vs VTI overlap
88% of SPY and VTI is the same money, spread over 501 companies both funds hold.
Holdings as of August 31, 2026 · source: SPDR (SPY), Vanguard (VTI)
- 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
SPY and VTI: what people ask
How much do SPY and VTI overlap?
88% by weight, as of August 31, 2026: nearly the same fund. 501 companies appear in both funds; they make up 100% of SPY and 89% of VTI.
Which stocks do SPY and VTI both hold?
The largest shared positions are NVDA, AAPL, MSFT, AMZN and GOOGL. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both SPY and VTI?
Out of every $100 split evenly between them, about $88 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 3 names only in SPY, 3,002 only in VTI. 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 SPDR 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.