%%It was my long term observation which was true 95% of the time. My reasoning was that DOW is less volatile than Nasdaq and S&P is something between. So if DOW is up 0.5% and Nasdaq is up 1.5%, usually S&P is up 1% (95% of the time this theory is true).
Good average;
but DOW can easily equal SPY, but not very often. Dow is correlated to itself LOL
