A Yahoo Finance analysis article points out that the market-cap-weighted nature of the S&P 500 index has led to increasing concentration, with NVIDIA, Apple, Microsoft, and Google collectively accounting for over 25% of its weight. The article mentions that nearly 37% of the Vanguard S&P 500 ETF (VOO)'s funds are invested in its top ten holdings. Given that the market has already seen a rotation away from " Magnificent Seven" stocks in 2026, the Invesco S&P 500 Equal Weight ETF (RSP) has outperformed VOO by nearly 4% year-to-date. The analysis suggests that investors' focus on valuations, persistently high inflation, potential interest rate hikes by the Federal Reserve, and signs of a slowing labor market all indicate a continued market rotation into areas beyond technology stocks.