Investors seeking broad global diversification through a single MSCI World ETF are often left with a portfolio that is heavily concentrated in US technology giants, according to a new analysis.
The popular benchmark index is dominated by information technology companies, which account for approximately 30% of its total value.
Consequently, the top 10 holdings in the MSCI World Index are identical to those of the US-only S&P 500, including Nvidia, Apple, and Microsoft.
This structural overlap means that buying a "global" fund frequently results in a de facto bet on US large-cap tech performance, rather than true worldwide exposure.
The concentration risk is particularly acute for retail investors who assume that a single fund provides adequate geographic and sectoral diversification.
Without additional allocations to other regions or sectors, these investors remain vulnerable to volatility in the US tech sector.