etf overlap tool · moderate overlap
VGT vs SOXX overlap
89% of SOXX's money sits in companies VGT also holds; 31% of the two funds is the same money, spread over 22 companies both hold.
Holdings as of September 30, 2026 · source: Vanguard (VGT), iShares (SOXX) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
The companies you would own twice
What only one of them gives you
VGT and SOXX: what people ask
How much do VGT and SOXX overlap?
31% by weight, as of September 30, 2026: moderate overlap. 22 companies appear in both funds; they make up 41% of VGT and 89% of SOXX.
Which stocks do VGT and SOXX both hold?
The largest shared positions are NVDA, MU, AVGO, 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 VGT and SOXX?
Out of every $100 split evenly between them, about $31 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 296 names only in VGT, 8 only in SOXX. Half in each behaves like 21 equally weighted stocks, against 13 for VGT alone and 19 for SOXX alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.
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 Vanguard 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.