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Vanguard S&P 500 ETF (VOO) is highly concentrated, with tech at the core

VOO holds $1.7 trillion in total assets and the top 10 stocks account for 38% of the fund, while information technology makes up 37%.

Tuesday, August 25, 2026 · Written up by our desk · ETFs

Vanguard S&P 500 ETF (VOO) has grown into a widely held option for investors seeking broad exposure to the S&P 500, with the fund managing $1.7 trillion in total assets, according to Yahoo Finance.

While VOO tracks the S&P 500, the benchmark is described as unusually concentrated today, with the top 10 portfolio holdings representing 38% of the ETF, leaving 62% spread across roughly 490 other companies. The article notes this level of concentration has not been seen before in the history it cites, and compares it with the dot-com era when the top 10 represented 27% of the index.

Technology exposure is central to VOO's positioning, with the information technology sector accounting for 37% of the fund. The leading holdings listed include Nvidia, Apple, Alphabet, Microsoft, and Amazon, and the piece ties that mix to the artificial intelligence boom across areas such as chip manufacturing, cloud computing, enterprise software, and consumer applications.

The article also highlights VOO’s long-run performance, saying the ETF delivered a 314% total return over the past 10 years as of Aug. 19. It adds that a $10,000 investment would have grown to $41,400, implying an annualized return of 15% over the period.

Latest closeS&P 500 7,785.76 ▼0.2%

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