etf overlap · moderate overlap

Vanguard S&P 500 ETF logoTechnology Select Sector SPDR logoVOO vs XLK overlap

38% of VOO and XLK is the same money, spread over 73 companies both funds hold.

Holdings as of August 31, 2026 · source: Vanguard (VOO), SPDR (XLK)

overlapfull holdings, by weight
38%of each fund is money the other holds at the same weight, across 73 shared companies.
VOO
38%62%
XLK
38%62%
  • 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.
01Shared

The companies you would own twice

held by bothtop 15 of 73
companyVOOXLK
NVIDIA Corp logoNVDANVIDIA Corp8.08%15.28%
Apple Inc logoAAPLApple Inc7.03%13.79%
Intel Corp logoINTCIntel Corp0.67%3.60%
Palantir Technologies Inc logoPLTRPalantir Technologies Inc0.65%2.52%
Oracle Corp logoORCLOracle Corp0.38%1.37%
CRCRWDCrowdstrike Holdings Inc0.36%1.51%
02Different

What only one of them gives you

only in VOO432 names
Alphabet Inc logoGOOGAlphabet Inc2.40%
only in XLK2 names
PPEVERPURE INC A0.23%
IXIXTZ6XAK TECHNOLOGY DEC260.00%
03Sectors

Where each fund puts its money

sectorsVOO vs XLK, share of each fund
Information Technology37.84%99.93%
Financials12.23%0.00%
Communication Services9.48%0.00%
Health Care9.27%0.00%
Consumer Discretionary9.13%0.00%
Industrials8.29%0.00%
Consumer Staples4.49%0.00%
Energy3.39%0.00%
Utilities1.98%0.00%
Materials1.83%0.00%
Real Estate1.80%0.00%
04Questions

VOO and XLK: what people ask

questions4 answered

How much do VOO and XLK overlap?

38% by weight, as of August 31, 2026: moderate overlap. 73 companies appear in both funds; they make up 38% of VOO and 100% of XLK.

Which stocks do VOO and XLK both hold?

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

Is it redundant to hold both VOO and XLK?

Out of every $100 split evenly between them, about $38 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 432 names only in VOO, 2 only in XLK. 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 SPDR publish, not a top-10 sample, and companies are matched by their ISIN so share classes stay apart.

Hold VOO and XLK?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.