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

overlapfull holdings, by weight
32%of each fund is money the other holds at the same weight, across 21 shared companies.
SMH
32%53%15%
CNDX
32%68%
  • same money
  • same companies, extra weight
  • only in this fund
Overlap = the sum, over companies both funds hold, of the smaller of the two weights. Cash and derivatives excluded.
01Shared

The companies you would own twice

held by bothtop 15 of 21
companySMHCNDX
Nvidia Corp logoNVDANvidia Corp19.28%8.22%
Intel Corp logoINTCIntel Corp5.17%2.19%
Kla Corp logoKLACKla Corp4.41%0.99%
MRMRVLMarvell Technology Inc4.44%0.92%
ASASMLAsml Holding Nv4.30%0.66%
ARARMArm Holdings Plc1.21%0.44%
02Different

What only one of them gives you

only in SMH4 names
SKSKHYVSk Hynix Inc4.51%
STSTMStmicroelectronics Nv0.89%
only in CNDX80 names
ALPHABET CLASS C logoGOOGALPHABET CLASS C2.93%
SPSPCXSPACE EXPLORATION TECHNOLOGIES COR2.78%
03Sectors

Where each fund puts its money

sectorsSMH vs CNDX, share of each fund
Information Technology95.43%58.16%
Communication Services0.00%15.02%
Consumer Discretionary0.00%10.44%
Consumer Staples0.00%6.11%
Health Care0.00%4.25%
Industrials0.00%3.24%
Utilities0.00%1.10%
Materials0.00%0.97%
Energy0.00%0.47%
Financials0.00%0.20%
Not classified4.51%0.00%
04Questions

SMH and CNDX: what people ask

questions6 answered

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.

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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.