etf overlap · light overlap
QQQ vs DIA overlap
22% of QQQ and DIA is the same money, spread over 9 companies both funds hold.
Holdings as of September 24, 2026 · source: Invesco (QQQ), SPDR (DIA)
- 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
QQQ and DIA: what people ask
How much do QQQ and DIA overlap?
22% by weight, as of September 24, 2026: light overlap. 9 companies appear in both funds; they make up 33% of QQQ and 29% of DIA.
Which stocks do QQQ and DIA both hold?
The largest shared positions are MSFT, AAPL, GOOGL, AMZN and NVDA. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both QQQ and DIA?
Out of every $100 split evenly between them, about $22 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 92 names only in QQQ, 21 only in DIA. 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 SPDR 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.