Top 10 stocks own 38 percent of S&P, concentration bubble eclipses dot-com era, market risks crash tied to handful of giants
⚠️US stock market concentration Bubble is huge: The top 10 largest S&P 500 stocks reflect ~38% of the index market capitalization, just shy of a RECORD high. This is over 10 percentage points higher than at the 2000 Dot-Com Bubble …