etf overlap tool · heavy overlap

ITOT vs IWF overlap

99% of IWF's money sits in companies ITOT also holds; 54% of the two funds is the same money, spread over 353 companies both hold.

Holdings as of October 16, 2026 · source: iShares (ITOT), iShares (IWF) · How we measured all 1,431 pairs

overlapfull holdings, by weight

54%of each fund is money the other holds at the same weight, across 353 shared companies.

ITOT

54%37%

63% in IWF

IWF

54%

99% in ITOT

same money
same companies, extra weight
only in this fund

Hold ITOT and IWF with other funds or stocks? The free portfolio optimizer opens ITOT and IWF 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 353

companyITOTIWF

NVDANVIDIA7.01%15.14%

AAPLAPPLE6.78%8.15%

MSFTMICROSOFT5.31%5.95%

GOOGLALPHABET CLASS A2.70%6.01%

GOOGALPHABET CLASS C2.17%4.85%

METAMETA PLATFORMS CLASS A2.12%3.86%

AVGOBROADCOM INC2.12%4.63%

LLYELI LILLY1.36%3.04%

TSLATESLA INC1.35%3.14%

MUMICRON TECHNOLOGY1.34%3.00%

AMDADVANCED MICRO DEVICES1.17%2.61%

VVISA CLASS A0.93%2.07%

MAMASTERCARD CLASS A0.68%1.51%

AMZNAMAZON.COM INC3.32%0.61%

COSTCOSTCO WHOLESALE CORP0.59%0.58%

02Different

What only one of them gives you

only in ITOT2,070 names

BRK-BBERKSHIRE HATHAWAY INC CLASS B1.34%

JPMJPMORGAN CHASE & CO1.22%

XOMEXXONMOBIL HOLDINGS CORP1.00%

JNJJOHNSON & JOHNSON0.83%

INTCINTEL CORPORATION0.60%

CVXCHEVRON0.60%

CSCOCISCO SYSTEMS INC0.57%

PGPROCTER & GAMBLE0.50%

only in IWF18 names

SPOTSPOTIFY TECHNOLOGY0.25%

NUNUNU HOLDINGS CLASS A0.15%

AUAUANGLOGOLD ASHANTI PLC0.13%

BABAMBROOKFIELD ASSET MANAGEMENT VOTING0.05%

VIVIKVIKING HOLDINGS LTD0.04%

QSQSRRESTAURANTS BRANDS INTERNATIONAL0.04%

ASASNDASCENDIS PHARMA0.03%

ONONONON HOLDING AG CLASS A0.02%

03Sectors

Where each fund puts its money

sectorsITOT vs IWF, share of each fund

Information Technology35.69%54.31%

Communication Services9.26%16.83%

Financials12.19%5.03%

Industrials9.10%7.37%

Consumer Discretionary8.81%7.61%

Health Care10.20%5.92%

Consumer Staples4.60%1.31%

Energy3.92%0.59%

Real Estate2.10%0.41%

Utilities2.00%0.27%

Materials1.96%0.26%

04Questions

ITOT and IWF: what people ask

questions4 answered

How much do ITOT and IWF overlap?

54% by weight, as of October 16, 2026: heavy overlap. 353 companies appear in both funds; they make up 63% of ITOT and 99% of IWF.

Which stocks do ITOT and IWF both hold?

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

Is it redundant to hold both ITOT and IWF?

Out of every $100 split evenly between them, about $54 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 2,070 names only in ITOT, 18 only in IWF. Half in each behaves like 33 equally weighted stocks, against 56 for ITOT alone and 21 for IWF 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 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.

Hold ITOT and IWF?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.