etf overlap tool · little overlap
IWM vs CNDX overlap
IWM and CNDX hold no company in common. Still, 37% of their money sits in the same sectors, led by Information Technology, which is 57% of CNDX against 13% of IWM.
Holdings as of October 16, 2026 · source: iShares (IWM), iShares (CNDX) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold IWM and CNDX with other funds or stocks? The free portfolio optimizer opens IWM 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.
What only one of them gives you
AMZNAMAZON.COM INC4.26%No stock in common, 37% in the same sectors
IWM and CNDX: what people ask
How much do IWM and CNDX overlap?
None by holdings, as of October 16, 2026: no company appears in both funds. By sector, 37% of their money sits in the same sectors, led by Information Technology.
Which stocks do IWM and CNDX both hold?
None. IWM and CNDX have no holding in common.
Is it redundant to hold both IWM and CNDX?
No. Out of every $100 split evenly between them, none buys the same company. Half in each gives you 2,072 different holdings that behave like 121 equally weighted stocks, against 834 for IWM alone and 31 for CNDX alone. Whether that mix suits you depends on what you want to own; this is a description, not advice.
What is CNDX, next to IWM?
CNDX is iShares Nasdaq 100 UCITS ETF (ISIN IE00B53SZB19), an Irish-domiciled UCITS fund on the Nasdaq-100 index. Next to IWM, it holds no company in common, as of October 16, 2026.
Does the IWM 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 IWM and SXRV share no company either.
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.