etf overlap · heavy overlap
MGK vs CNDX overlap
63% of MGK and CNDX is the same money, spread over 35 companies both funds hold.
Holdings as of September 30, 2026 · source: Vanguard (MGK), iShares (CNDX) · 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
MGK and CNDX: what people ask
How much do MGK and CNDX overlap?
63% by weight, as of September 30, 2026: heavy overlap. 35 companies appear in both funds; they make up 85% of MGK and 68% of CNDX.
Which stocks do MGK and CNDX both hold?
The largest shared positions are NVDA, AAPL, MSFT, AMZN and META. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both MGK and CNDX?
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: 17 names only in MGK, 66 only in CNDX. Half in each behaves like 24 equally weighted stocks, against 17 for MGK alone and 31 for CNDX alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
Is CNDX the European version of MGK?
Partly: 63% of the money in CNDX and MGK is the same, as of September 30, 2026. CNDX is iShares Nasdaq 100 UCITS ETF (ISIN IE00B53SZB19), an Irish-domiciled UCITS fund on the Nasdaq-100 index. European brokers generally don't sell US-listed ETFs such as MGK to retail clients, because those funds publish no KID (the PRIIPs key information document); UCITS funds do.
Does the MGK vs CNDX overlap apply to other tickers?
Yes. CNDX also trades as CNX1 (London, GBP), SXRV (Xetra, EUR) and CSNDX (Borsa Italiana, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so MGK vs SXRV 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 Vanguard 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.