Wall Street's big but narrow rally: 4 in 10 S&P stocks are down this year
By Noel Randewich Oct 12 (Reuters) - The rally that has driven the S&P 500 up 14% this year to record highs is masking the fact that more than 4 in 10 stocks in the index are lower in 2026, as the gains are concentrated in a few chipmakers and other AI-related heavyweights.