Directional Bias For The Day: S&P Futures are higher; The odds are for an up day – watch for a break below 4501.50 for a change of fortunes Key economic data report due during the day: PPI ( 0,7% vs. 0.6% est.; prev. 1.0%) at 8:30 AM Core PPI ( 0.6% vs. 0.5% est.; prev.…