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etf overlap tool · light overlap

Vanguard Total Stock Market ETF logoARK Innovation ETF logoVTI vs ARKK overlap

85% of ARKK's money sits in companies VTI also holds; 14% of the two funds is the same money, spread over 37 companies both hold.

Holdings as of September 25, 2026 · source: Vanguard (VTI), ARK Invest (ARKK) · How we measured all 1,431 pairs

overlapfull holdings, by weight
14%of each fund is money the other holds at the same weight, across 37 shared companies.
VTI
14%77%
23% in ARKK
ARKK
14%15%
85% in VTI
  • 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.

Hold VTI and ARKK with other funds or stocks? The free portfolio optimizer opens VTI 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.

01Shared

The companies you would own twice

held by bothtop 15 of 37
companyVTIARKK
NVIDIA Corp logoNVDANVIDIA Corp7.13%2.37%
Alphabet Inc logoGOOGAlphabet Inc2.18%1.39%
Tesla Inc logoTSLATesla Inc1.36%9.18%
Palantir Technologies Inc logoPLTRPalantir Technologies Inc0.56%2.69%
NENETCloudflare Inc0.15%1.39%
SPSPCXSpace Exploration Technologies Corp0.12%5.90%
HOHOODRobinhood Markets Inc0.12%4.03%
Teradyne Inc logoTERTeradyne Inc0.09%0.93%
NTNTRANatera Inc0.08%1.18%
RKRKLBRocket Lab Corp0.06%1.29%
02Different

What only one of them gives you

only in VTI3,479 names
only in ARKK8 names
CRCRSPCRISPR THERAPEUTICS AG4.36%
SHOPIFY INC - CLASS A logoSHOPSHOPIFY INC - CLASS A3.08%
BLBLSHBULLISH2.23%
OP—OPENAI GROUP PBC SERIES C1.94%
KA—KALSHI INC.1.08%
ARK ACTIVE AUTOCALL INC ETF logoARKYARK ACTIVE AUTOCALL INC ETF0.32%
BR—BRERA HOLDINGS PLC WTS0.01%
03Sectors

Where each fund puts its money

sectorsVTI vs ARKK, share of each fund
Information Technology37.17%28.14%
Health Care9.95%28.20%
Financials11.73%11.32%
Consumer Discretionary8.56%11.34%
Communication Services9.34%9.65%
Industrials9.26%5.09%
Consumer Staples4.17%0.00%
Energy3.55%0.00%
Real Estate2.08%0.00%
Materials1.92%0.00%
Utilities1.89%0.00%
Not classified0.07%5.58%
04Questions

VTI and ARKK: what people ask

questions4 answered

How much do VTI and ARKK overlap?

14% by weight, as of September 25, 2026: light overlap. 37 companies appear in both funds; they make up 23% of VTI and 85% of ARKK.

Which stocks do VTI and ARKK both hold?

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

Is it redundant to hold both VTI 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: 3,479 names only in VTI, 8 only in ARKK. Half in each behaves like 60 equally weighted stocks, against 55 for VTI 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.

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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.