S&P 500 BREADTH FALLS TO DOT-COM ERA LOW Goldman Sachs says AI stocks are masking extreme weakness beneath the S&P 500, with market breadth falling to its lowest level since the dot-com bubble. The median S&P 500 stock now trades 16% below its 52-week high, while investor positioning has fallen sharply. Goldman sees potential for lagging stocks to catch up if macro uncertainty eases. 28-SEP-2026 06:52 AM ET