Its an index. Lets say the 500 stocks that comprise the index do in fact have quantifiable non random behavior AT TIMES. You would have to find out when exactly the 500 stocks are exhibiting non random behavior and that wouldn't work anyway because while some of the stocks may be non random at the moment others would be so that wouldn't do it. And its impossible to analyze 500 stocks at a time anyway if your a sole trader. Maybe I'm wrong? Just a thought.