Vanguard Tech ETFs Reveal the Gap Between Sector Exposure and Concentration Risk

Investors holding concentrated technology portfolios saw deeper losses during a recent market sell-off, with the Nasdaq-100 falling 12% from its all-time high compared to a 9% decline in the S&P 500. This performance gap highlights the volatility inherent in concentrated positions when sentiment shifts.

This risk is present even in funds marketed as broad sector exposure. The Vanguard Information Technology ETF holds hundreds of stocks, yet four companies—Nvidia, Apple, Microsoft, and Broadcom—represent nearly half of the total portfolio value. While this concentration helped the fund outperform the S&P 500 and Nasdaq-100 over the previous decade, it magnifies losses during valuation corrections.

For investors seeking to avoid reliance on a small group of giants, the Vanguard Global Technology Index ETF (ASX: VTEK) offers a different structure. VTEK holds approximately 300 global technology firms, spreading exposure across software, cloud computing, semiconductors, and advanced manufacturing. Unlike the narrow U.S. focus of the Information Technology ETF, VTEK includes significant players from Europe and Asia, including ASML, Broadcom, Taiwan Semiconductor, and Shopify.