Crowding mania

Big is beautiful, but should we worry? Kolanvoic and Dubravko with some stats: 1. Mega-cap crowding: Top 10 stocks' market cap at 96th percentile relative to S&P 500 history. 2. Weight of largest two stocks in S&P 500 at new highs. 3. Narrowest leadership in last quarter's up market performance. 4. Growth leadership narrowing: MSFT, GOOGL, AMZN, META, NVDA, CRM contributed to 53% of S&P 500 performance, 54% of Nasdaq 100 and 68% of Growth factor