According to Eric Balchunas, only 33% of S&P 500 stocks outperformed the index this year, indicating narrow market breadth, source: Eric Balchunas, X, Dec 31, 2025. He added that only 27% of active funds beat the benchmark, with many underperforming due to underweighting the Magnificent 7, source: Eric Balchunas, X, Dec 31, 2025. For trading, this means cap-weighted index exposure outpaced most active stock-picking in the period and provides macro context for crypto traders tracking equity breadth as a risk-sentiment gauge, though the source did not mention crypto, source: Eric Balchunas, X, Dec 31, 2025.