etf overlap tool · nearly the same fund
SPY vs XUS overlap
96% of SPY and XUS is the same money, spread over 502 companies both funds hold.
Holdings as of October 16, 2026 · source: SPDR (SPY), iShares (XUS) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
XUS holds other funds, not stocks: iShares Canada publishes every security behind them, and those are the lines compared here. Its file gives a ticker and a country but no ISIN; 100.0% of its stock money was matched to one.
Hold SPY and XUS with other funds or stocks? The free portfolio optimizer opens SPY and XUS beside the rest of what you own: the companies you hold twice, what the funds cost a year, and where the next deposit should go. No account.
The companies you would own twice
GOOGALPHABET INC CL C2.43%2.09%
What only one of them gives you
Where each fund puts its money
SPY and XUS: what people ask
Is XUS the same as SPY?
Nearly: 96% of the money in SPY and XUS sits in the same companies at the same weights, as of October 16, 2026. The other 4.5% is weight differences, plus 2 names only in SPY and 1 only in XUS.
How much do SPY and XUS overlap?
96% by weight, as of October 16, 2026: nearly the same fund. 502 companies appear in both funds; they make up 99.9% of SPY and 99.9% of XUS.
Which stocks do SPY and XUS both hold?
The largest shared positions are AAPL, NVDA, 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 XUS?
Out of every $100 split evenly between them, about $96 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 2 names only in SPY, 1 only in XUS. Half in each behaves like 46 equally weighted stocks, against 44 for SPY alone and 47 for XUS 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 and iShares 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.