When three companies—Amazon, Microsoft, and Netflix—comprise almost half of the performance year-to-date for the S&P 500, what happens to the index when they fall out of favor? It has long been my belief that investors don’t measure the risk inherent in a market-cap weighted index such as the S&P 500. They are invested in passive mutual funds that mimic an approach that has become more top heavy by the day. Investors should not be surprised when huge drops accompany huge gains.
Read more about the Truth Behind the S&P 500 in Parts I, II, III, IV, V, and VI.
