etf overlap tool · moderate overlap
IWDA vs CNDX overlap
98% of CNDX's money sits in companies IWDA also holds; 39% of the two funds is the same money, spread over 97 companies both hold.
Holdings as of October 16, 2026 · source: iShares (IWDA), iShares (CNDX) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold IWDA and CNDX with other funds or stocks? The free portfolio optimizer opens IWDA and CNDX 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
What only one of them gives you
Where each fund puts its money
IWDA and CNDX: what people ask
How much do IWDA and CNDX overlap?
39% by weight, as of October 16, 2026: moderate overlap. 97 companies appear in both funds; they make up 39% of IWDA and 98% of CNDX.
Which stocks do IWDA and CNDX 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 IWDA and CNDX?
Out of every €100 split evenly between them, about €39 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,151 names only in IWDA, 4 only in CNDX. Half in each behaves like 52 equally weighted stocks, against 85 for IWDA alone and 31 for CNDX alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
Do IWDA and CNDX track the same index?
No. IWDA (ISIN IE00B4L5Y983) tracks the MSCI World index, CNDX (ISIN IE00B53SZB19) the Nasdaq-100. As of October 16, 2026, 1,151 companies are only in IWDA (60% of the fund) and 4 only in CNDX (1.7% of it).
Does the IWDA vs CNDX overlap apply to other tickers?
Yes. IWDA also trades as SWDA (London, GBP; Borsa Italiana, EUR) and EUNL (Xetra, EUR). 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 EUNL vs SXRV also overlaps 39%.
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.