etf overlap · little overlap

VTI vs IWM overlap

4.0% of VTI and IWM is the same money, spread over 1,840 companies both funds hold.

Holdings as of August 31, 2026 · source: Vanguard (VTI), iShares (IWM)

overlapfull holdings, by weight

4.0%of each fund is money the other holds at the same weight, across 1,840 shared companies.

VTI

96%

IWM

91%

same money
same companies, extra weight
only in this fund

01Shared

The companies you would own twice

held by bothtop 15 of 1,840

companyVTIIWM

MOMOG-AMoog Inc0.01%0.36%

FRFROGJFrog Ltd0.01%0.34%

KRKRYSKrystal Biotech Inc0.01%0.30%

GKGKOSGlaukos Corp0.01%0.30%

EAEATBrinker International Inc0.01%0.30%

PRPRAXPraxis Precision Medicines Inc0.01%0.23%

UMUMBFUMB Financial Corp0.01%0.33%

CYCYTKCytokinetics Inc0.01%0.29%

BTBTSGBrightSpring Health Services Inc0.01%0.31%

PTPTGXProtagonist Therapeutics Inc0.01%0.28%

JXJXNJackson Financial Inc0.01%0.26%

CTCTRECareTrust REIT Inc0.01%0.30%

SMSMSM Energy Co0.01%0.28%

ONONBOld National Bancorp/IN0.01%0.29%

PCPCVXVaxcyte Inc0.01%0.25%

02Different

What only one of them gives you

only in VTI1,663 names

NVDANVIDIA Corp6.87%

AAPLApple Inc6.30%

MSFTMicrosoft Corp5.10%

AMZNAmazon.com Inc3.40%

GOOGLAlphabet Inc2.69%

AVGOBroadcom Inc2.37%

GOOGAlphabet Inc2.12%

METAMeta Platforms Inc1.70%

only in IWM135 names

SSSSRMSSR MINING0.25%

CRCRSPCRISPR THERAPEUTICS AG0.17%

GLGLNGGOLAR LNG0.16%

GTGTXGARRETT MOTION0.15%

KLKLICKULICKE AND SOFFA INDUSTRIES INC0.15%

DFDFTXDEFINIUM THERAPEUTICS INC0.15%

MRMRXMAREX GROUP LTD0.15%

BIBIPCBROOKFIELD INFRASTRUCTURE CORP CLA0.14%

03Sectors

Where each fund puts its money

sectorsVTI vs IWM, share of each fund

Information Technology34.64%13.72%

Financials11.93%19.01%

Health Care9.55%20.35%

Industrials8.59%14.05%

Consumer Discretionary8.55%8.77%

Communication Services8.72%2.45%

Energy3.40%6.76%

Real Estate1.90%5.68%

Materials1.81%4.21%

Consumer Staples4.05%1.95%

Utilities1.88%2.68%

Not classified4.64%0.00%

04Questions

VTI and IWM: what people ask

questions4 answered

How much do VTI and IWM overlap?

4.0% by weight, as of August 31, 2026: little overlap. 1,840 companies appear in both funds; they make up 4.0% of VTI and 95% of IWM.

Which stocks do VTI and IWM both hold?

The largest shared positions are MOG-A, FROG, KRYS, GKOS and EAT. Ranked by the smaller of the two weights, which is the part you would own twice.

Is it redundant to hold both VTI and IWM?

Out of every $100 split evenly between them, about $4 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 1,663 names only in VTI, 135 only in IWM. 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.

Hold VTI and IWM?Import your positions and see what your funds hold together, company by company, with the fees you pay on each.Import my portfolio

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.