Directional Bias For The Day: S&P Futures are lower; The odds are for a sideways day – watch for a break below 3356.75 and break above 3379.50 for clarity Key economic data due: Flash Manufacturing PMI ( 51.9 est.; prev. 50.9) at 9:45 AM Flash Services PMI  ( 50.9 est.; prev. 50.0) at 9:45 AM…