etf overlap tool · little overlap
SPY vs XLC overlap
99.7% of XLC's money sits in companies SPY also holds; 9.7% of the two funds is the same money, spread over 22 companies both hold.
Holdings as of October 16, 2026 · source: SPDR (SPY), SPDR (XLC) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
The companies you would own twice
What only one of them gives you
AMZNAMAZON.COM INC3.72%Every XLC holding is also in the other fund.
Where each fund puts its money
SPY and XLC: what people ask
How much do SPY and XLC overlap?
9.7% by weight, as of October 16, 2026: little overlap. 22 companies appear in both funds; they make up 9.7% of SPY and 99.7% of XLC.
Which stocks do SPY and XLC both hold?
The largest shared positions are GOOGL, GOOG, META, NFLX and DIS. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both SPY and XLC?
Out of every $100 split evenly between them, about $10 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 482 names only in SPY, 0 only in XLC. Half in each behaves like 28 equally weighted stocks, against 44 for SPY alone and 10 for XLC 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 SPDR 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.