The S&P 500 is rallying thanks to these top 10 companies; All Big Tech
The 10 largest companies in the S&P 500 now make up 34% of the index with an average P/E ratio of 50x. This is the highest percentage since 2001 during the Dot-com bubble. Even in the 2008 bubble, this percentage peaked at ~26%. These same 10 companies have accounted for ~80%…