The S&P 500 is nearing 2400 (or surpassed it). This is, of course, record territory for this index. I always prefer to do my analysis of the equity markets with the S&P 500 because it is an index of the 500 largest corporations in the US by market capitalization. In comparison, the Dow Jones Industrial index is just 30 companies that are sized and weighted based on price, rather than market cap. The companies that comprise the S&P 500 account for about 80% of the overall market value of the entire US stock market. So, you can see why the S&P 500 Index is the preferred index for most economists, and myself as well. It provides a tangible, solid feel on how the stock market is performing.