Goldman Sachs Sees S&P 500 Upside as Breadth Drops to Dot-Com Era Lows

Goldman Sachs reports that S&P 500 market breadth has dropped to levels unseen since the dot-com bubble, creating potential upside as institutional positioning remains near cyclical lows. While the index is up roughly 14% year-to-date, the median constituent stock trades 16% below its 52-week high, and the bank's equity sentiment indicator has dropped to -0.9. Earnings growth remains heavily concentrated, with artificial intelligence capital expenditure driving around half of index profit expansion. Meanwhile, the index's forward price-to-earnings ratio has compressed from 22 times to 19 times, matching its 10-year historical average.