The Hateful Eight is 85% of S&P 500 Decline

The Hateful Eight is 85% of S&P 500 Decline scores 24 points and 25 comments for its startling claim that just eight mega-cap tech stocks caused 85% of the index's recent downturn, a concentration that outstrips the typical market-wide dispersion. The article pinpoints that these eight stocks—often the same names dominating index gains—are now collectively 3 times more responsible for the decline than the other 492 components, a stark reversal of usual diversification logic. With concrete data on market-cap weighting, it warns that passive investors face hidden perils, a timely message given the 15% drop in tech-heavy portfolios over the past quarter.