etf overlap · heavy overlap
ITOT vs SSAC overlap
64% of ITOT and SSAC is the same money, spread over 511 companies both funds hold.
Holdings as of October 14, 2026 · source: iShares (ITOT), iShares (SSAC) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
What only one of them gives you
Where each fund puts its money
ITOT and SSAC: what people ask
How much do ITOT and SSAC overlap?
64% by weight, as of October 14, 2026: heavy overlap. 511 companies appear in both funds; they make up 91% of ITOT and 64% of SSAC.
Which stocks do ITOT 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 ITOT and SSAC?
Out of every $100 split evenly between them, about $64 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,914 names only in ITOT, 1,128 only in SSAC. Half in each behaves like 74 equally weighted stocks, against 55 for ITOT alone and 99 for SSAC alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
Is SSAC the European version of ITOT?
Partly: 64% of the money in SSAC and ITOT is the same, as of October 14, 2026. SSAC is iShares MSCI ACWI UCITS ETF (ISIN IE00B6R52259), an Irish-domiciled UCITS fund on the MSCI All Country World (ACWI) index. European brokers generally don't sell US-listed ETFs such as ITOT to retail clients, because those funds publish no KID (the PRIIPs key information document); UCITS funds do.
Does the ITOT vs SSAC overlap apply to other tickers?
Yes. 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 ITOT vs IUSQ also overlaps 64%.
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.