Directional Bias For The Day: S&P Futures are higher; The odds are for an up day — watch for a break below 4361.50 for a change of sentiments Key economic data report due during the day: PPI ( 1.0% vs. 0.6% est.; prev. 0.8%) at 8:30 AM Core PPI ( 1.0% vs. 0.5% est.; prev.…