etf overlap tool · little overlap
VOO vs VWO overlap
VOO and VWO hold no company in common. Still, 79% of their money sits in the same sectors, led by Information Technology, which is 40% of VOO against 32% of VWO.
Holdings as of September 30, 2026 · source: Vanguard (VOO), Vanguard (VWO) · How we measured all 1,431 pairs
- same money
- same companies, extra weight
- only in this fund
Hold VOO and VWO with other funds or stocks? The free portfolio optimizer opens VOO and VWO 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.
What only one of them gives you
NVDANVIDIA Corp8.39%
AAPLApple Inc7.38%
MSFTMicrosoft Corp5.78%
AMZNAmazon.com Inc3.71%
GOOGLAlphabet Inc3.07%
AVGOBroadcom Inc2.54%GOOGAlphabet Inc2.45%
No stock in common, 79% in the same sectors
VOO and VWO: what people ask
How much do VOO and VWO overlap?
None by holdings, as of September 30, 2026: no company appears in both funds. By sector, 79% of their money sits in the same sectors, led by Information Technology.
Which stocks do VOO and VWO both hold?
None. VOO and VWO have no holding in common.
Is it redundant to hold both VOO and VWO?
No. Out of every $100 split evenly between them, none buys the same company. Half in each gives you 5,522 different holdings that behave like 75 equally weighted stocks, against 43 for VOO alone and 33 for VWO alone. Whether that mix suits you depends on what you want to own; 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 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.