etf overlap tool · light overlap

DIA vs IWF overlap

22% of DIA and IWF is the same money, spread over 15 companies both funds hold.

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

overlapfull holdings, by weight

22%of each fund is money the other holds at the same weight, across 15 shared companies.

DIA

22%46%

54% in IWF

IWF

22%59%

41% in DIA

same money
same companies, extra weight
only in this fund

Hold DIA and IWF with other funds or stocks? The free portfolio optimizer opens DIA 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 15

companyDIAIWF

MSFTMICROSOFT CORP6.05%5.95%

AAPLAPPLE INC3.92%8.15%

GOOGLALPHABET INC CL A3.89%6.01%

NVDANVIDIA CORP2.45%15.14%

VVISA INC CLASS A SHARES4.60%2.07%

CATCATERPILLAR INC8.35%1.01%

HDHOME DEPOT INC3.54%0.69%

AMZNAMAZON.COM INC2.86%0.61%

AMGNAMGEN INC4.94%0.50%

BABABOEING CO/THE2.17%0.28%

AXPAMERICAN EXPRESS CO3.58%0.15%

WMTWALMART INC1.36%0.14%

KOCOCA COLA CO/THE1.07%0.13%

SHWSHERWIN WILLIAMS CO/THE3.83%0.06%

MMM3M CO1.88%0.04%

02Different

What only one of them gives you

only in DIA15 names

GSGOLDMAN SACHS GROUP INC10.07%

UNHUNITEDHEALTH GROUP INC4.59%

TRVTRAVELERS COS INC/THE4.45%

JPMJPMORGAN CHASE + CO3.88%

JNJJOHNSON + JOHNSON2.92%

MCDMCDONALD S CORP2.78%

CRMSALESFORCE INC2.75%

IBMINTL BUSINESS MACHINES CORP2.65%

only in IWF356 names

GOOGALPHABET CLASS C4.85%

AVGOBROADCOM INC4.63%

METAMETA PLATFORMS CLASS A3.86%

TSLATESLA INC3.14%

LLYELI LILLY3.04%

MUMICRON TECHNOLOGY3.00%

AMDADVANCED MICRO DEVICES2.61%

MAMASTERCARD CLASS A1.51%

03Sectors

Where each fund puts its money

sectorsDIA vs IWF, share of each fund

Information Technology19.05%54.31%

Financials26.59%5.03%

Industrials14.82%7.37%

Communication Services5.16%16.83%

Health Care14.12%5.92%

Consumer Discretionary9.59%7.61%

Consumer Staples4.25%1.31%

Materials3.83%0.26%

Energy2.57%0.59%

Real Estate0.00%0.41%

Utilities0.00%0.27%

04Questions

DIA and IWF: what people ask

questions4 answered

How much do DIA and IWF overlap?

22% by weight, as of October 16, 2026: light overlap. 15 companies appear in both funds; they make up 54% of DIA and 41% of IWF.

Which stocks do DIA and IWF both hold?

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

Is it redundant to hold both DIA and IWF?

Out of every $100 split evenly between them, about $22 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 15 names only in DIA, 356 only in IWF. Half in each behaves like 32 equally weighted stocks, against 22 for DIA 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 SPDR 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.

Hold DIA 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.