etf overlap · little overlap
XLY vs CSPX overlap
8.7% of XLY and CSPX is the same money, spread over 47 companies both funds hold.
Holdings as of September 24, 2026 · source: SPDR (XLY), iShares (CSPX) · 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
Every XLY holding is also in the other fund.
Where each fund puts its money
XLY and CSPX: what people ask
How much do XLY and CSPX overlap?
8.7% by weight, as of September 24, 2026: little overlap. 47 companies appear in both funds; they make up 100% of XLY and 8.7% of CSPX.
Which stocks do XLY and CSPX both hold?
The largest shared positions are AMZN, TSLA, HD, MCD and TJX. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both XLY and CSPX?
Out of every $100 split evenly between them, about $9 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 0 names only in XLY, 457 only in CSPX. Half in each behaves like 27 equally weighted stocks, against 10 for XLY alone and 44 for CSPX alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
What is CSPX, next to XLY?
CSPX is iShares Core S&P 500 UCITS ETF (ISIN IE00B5BMR087), an Irish-domiciled UCITS fund on the S&P 500 index. Next to XLY, 8.7% of the money is the same, spread over 47 companies both hold, as of September 24, 2026.
Does the XLY vs CSPX overlap apply to other tickers?
Yes. CSPX also trades as CSP1 (London, GBP), SXR8 (Xetra, EUR) and CSSPX (Borsa Italiana, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so XLY vs SXR8 also overlaps 8.7%.
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.