etf overlap · moderate overlap

VOO vs XLK overlap
38% of VOO and XLK is the same money, spread over 73 companies both funds hold.
Holdings as of August 31, 2026 · source: Vanguard (VOO), SPDR (XLK)
- same money
- same companies, extra weight
- only in this fund
What only one of them gives you
Where each fund puts its money
VOO and XLK: what people ask
How much do VOO and XLK overlap?
38% by weight, as of August 31, 2026: moderate overlap. 73 companies appear in both funds; they make up 38% of VOO and 100% of XLK.
Which stocks do VOO and XLK both hold?
The largest shared positions are NVDA, AAPL, MSFT, AVGO and MU. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both VOO and XLK?
Out of every $100 split evenly between them, about $38 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 432 names only in VOO, 2 only in XLK. 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 Vanguard 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.