The stock market looks a lot like the wealth profile in this country — the rich keep getting richer.
That richness can be expressed in a couple of different ways.
First up is market cap. The biggest stocks are a lot bigger than the others:
Corporations in the S&P 500 aren’t evenly distributed.
In fact, the top 25 companies in the S&P 500 are as big as the rest of the index combined.1
The biggest sto...