etf overlap · heavy overlap
CSPX vs SSAC overlap
63% of CSPX and SSAC is the same money, spread over 442 companies both funds hold.
Holdings as of October 14, 2026 · source: iShares (CSPX), iShares (SSAC) · 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
Where each fund puts its money
CSPX and SSAC: what people ask
How much do CSPX and SSAC overlap?
63% by weight, as of October 14, 2026: heavy overlap. 442 companies appear in both funds; they make up 99% of CSPX and 63% of SSAC.
Which stocks do CSPX and SSAC both hold?
The largest shared positions are NVDA, AAPL, 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 CSPX and SSAC?
Out of every €100 split evenly between them, about €63 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 62 names only in CSPX, 1,197 only in SSAC. Half in each behaves like 65 equally weighted stocks, against 44 for CSPX alone and 99 for SSAC alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
Do CSPX and SSAC track the same index?
No. CSPX (ISIN IE00B5BMR087) tracks the S&P 500 index, SSAC (ISIN IE00B6R52259) the MSCI All Country World (ACWI). As of October 14, 2026, 62 companies are only in CSPX (1.1% of the fund) and 1,197 only in SSAC (37% of it).
Does the CSPX vs SSAC overlap apply to other tickers?
Yes. CSPX also trades as CSP1 (London, GBP), SXR8 (Xetra, EUR) and CSSPX (Borsa Italiana, EUR). SSAC also trades as ISAC (London, USD; Borsa Italiana, EUR) and IUSQ (Xetra, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so SXR8 vs IUSQ also overlaps 63%.
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 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.