The S&P 500 is still less than 70 percent of the entire market, so in order to diversify your holdings you have to hold some mid-cap and small stocks. But my major message is that you should not expect that you're going to get a higher return on those stocks than you will on the big stocks,  -   Jeremy Siegel     Quotes
The S&P 500 is still less than 70 percent of the entire market, so in order to diversify your holdings you have to hold some mid-cap and small stocks. But my major message is that you should not expect that you're going to get a higher return on those stocks than you will on the big stocks, Jeremy Siegel