etf overlap tool · light overlap
VOO vs ARKK overlap
14% of VOO and ARKK is the same money, spread over 14 companies both funds hold.
Holdings as of September 25, 2026 · source: Vanguard (VOO), ARK Invest (ARKK) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold VOO and ARKK with other funds or stocks? The free portfolio optimizer opens VOO and ARKK 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.
The companies you would own twice
GOOGAlphabet Inc2.45%1.39%
PLTRPalantir Technologies Inc0.65%2.69%
COINCoinbase Global Inc0.06%4.57%What only one of them gives you
AAPLApple Inc7.38%
MSFTMicrosoft Corp5.78%GOOGLAlphabet Inc3.07%
JNJJohnson & Johnson0.97%
SHOPSHOPIFY INC - CLASS A3.08%Where each fund puts its money
VOO and ARKK: what people ask
How much do VOO and ARKK overlap?
14% by weight, as of September 25, 2026: light overlap. 14 companies appear in both funds; they make up 25% of VOO and 38% of ARKK.
Which stocks do VOO and ARKK both hold?
The largest shared positions are META, NVDA, AMZN, AVGO and TSLA. Ranked by the smaller of the two weights, which is the part you would own twice.
Is it redundant to hold both VOO and ARKK?
Out of every $100 split evenly between them, about $14 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 491 names only in VOO, 31 only in ARKK. Half in each behaves like 55 equally weighted stocks, against 43 for VOO alone and 27 for ARKK 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 ARK Invest 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.