etf overlap · light overlap

SOXX vs SSAC overlap

11% of SOXX and SSAC is the same money, spread over 21 companies both funds hold.

Holdings as of September 24, 2026 · source: iShares (SOXX), iShares (SSAC) · How we measured all 1,431 pairs

overlapfull holdings, by weight
11%of each fund is money the other holds at the same weight, across 21 shared companies.
SOXX
11%77%12%
SSAC
11%89%
  • 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
companySOXXSSAC
NVIDIA logoNVDANVIDIA7.29%4.95%
KLA logoKLACKLA3.82%0.22%
MRMRVLMARVELL TECHNOLOGY4.39%0.20%
QUALCOMM logoQCOMQUALCOMM4.08%0.18%
MPMPWRMONOLITHIC POWER SYSTEMS INC3.14%0.06%
TERADYNE logoTERTERADYNE2.98%0.06%
02Different

What only one of them gives you

only in SOXX9 names
SKSKHYSK HYNIX AMERICAN DEPOSITARY SHARE3.11%
ASASMLASML HOLDING ADR REPRESENTING1.39%
MTMTSIMACOM TECHNOLOGY SOLUTIONS1.00%
CBCBRSCEREBRAS SYSTEMS INC CLASS A0.98%
ASASXASE TECHNOLOGY HOLDING ADR REPRESE0.88%
UMUMCUNITED MICRO ELECTRONICS ADR REP0.67%
ARARMARM HOLDINGS AMERICAN DEPOSITARY S0.53%
only in SSAC1,618 names
232330TAIWAN SEMICONDUCTOR MANUFACTURING1.86%
ALPHABET CLASS C logoGOOGALPHABET CLASS C1.56%
NDNDIAISHARES MSCI INDIA UCITS ETF1.27%
03Sectors

Where each fund puts its money

sectorsSOXX vs SSAC, share of each fund
Information Technology99.84%32.04%
Financials0.00%17.74%
Industrials0.00%9.92%
Health Care0.00%8.38%
Consumer Discretionary0.00%8.15%
Communication Services0.00%7.79%
Consumer Staples0.00%4.66%
Energy0.00%4.00%
Materials0.00%3.25%
Utilities0.00%2.16%
Real Estate0.00%1.41%
04Questions

SOXX and SSAC: what people ask

questions6 answered

How much do SOXX and SSAC overlap?

11% by weight, as of September 24, 2026: light overlap. 21 companies appear in both funds; they make up 88% of SOXX and 11% of SSAC.

Which stocks do SOXX and SSAC both hold?

The largest shared positions are NVDA, AVGO, MU, AMD and INTC. Ranked by the smaller of the two weights, which is the part you would own twice.

Is it redundant to hold both SOXX and SSAC?

Out of every $100 split evenly between them, about $11 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 9 names only in SOXX, 1,618 only in SSAC. Half in each behaves like 51 equally weighted stocks, against 19 for SOXX alone and 99 for SSAC alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.

What is SSAC, next to SOXX?

SSAC is iShares MSCI ACWI UCITS ETF (ISIN IE00B6R52259), an Irish-domiciled UCITS fund on the MSCI All Country World (ACWI) index. Next to SOXX, 11% of the money is the same, spread over 21 companies both hold, as of September 24, 2026.

Does the SOXX vs SSAC overlap apply to other tickers?

Yes. SSAC also trades as ISAC (London, USD; Borsa Italiana, EUR) and IUSQ (Xetra, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so SOXX vs IUSQ also overlaps 11%.

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.

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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.