etf overlap · moderate overlap
SMH vs CNDX overlap
32% of SMH and CNDX is the same money, spread over 21 companies both funds hold.
Holdings as of September 24, 2026 · source: VanEck (SMH), 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
SMH and CNDX: what people ask
How much do SMH and CNDX overlap?
32% by weight, as of September 24, 2026: moderate overlap. 21 companies appear in both funds; they make up 85% of SMH and 32% of CNDX.
Which stocks do SMH and CNDX both hold?
The largest shared positions are NVDA, MU, AMD, AVGO and INTC. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both SMH and CNDX?
Out of every $100 split evenly between them, about $32 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 4 names only in SMH, 80 only in CNDX. Half in each behaves like 25 equally weighted stocks, against 13 for SMH alone and 31 for CNDX alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
What is CNDX, next to SMH?
CNDX is iShares Nasdaq 100 UCITS ETF (ISIN IE00B53SZB19), an Irish-domiciled UCITS fund on the Nasdaq-100 index. Next to SMH, 32% of the money is the same, spread over 21 companies both hold, as of September 24, 2026.
Does the SMH 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 SMH vs SXRV also overlaps 32%.
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 VanEck 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.