VOO ETF Crosses $1 Trillion: Buffett Legacy Validated, With One Caveat

Vanguard's S&P 500 ETF (VOO) has become the first ETF to reach $1 trillion in assets under management, validating Warren Buffett's long-standing advice to invest in low-cost index funds. The article highlights the fund's low expense ratio, the historical underperformance of active managers, and Buffett's personal endorsement. However, it also introduces a caveat: the increasing concentration of the S&P 500 in a few mega-cap technology stocks, which presents new risks for investors seeking broad diversification.