Hey there.... I'm designing an investment website. I've posted here before and it was recommended NOT to use the S&P 500 as it could take to much time (depending on server's speed) to finish gathering each price. I would use less number of stocks to speed it up. Therefore the problem, ... the Dow Jones Industrial (~30 to 35 stocks) or the S&P 100. The Dow Jones is the fastest! It would offer the least problems. But it ONLY relates to a few stocks! Whereas the S&P 100 would cover that much more and it would be that much slower. What is the general opinion? May you have a blessed day as the Lord Jesus wills. JEP_Dude