Directional Bias For The Day: S&P Futures are higher; The odds are for an up day – watch for break below 3319.25 for change of fortune Key economic data due: Existing Home Sales ( est. 5.43M; prev. 5.35M) at 10:00 AM Directional Bias Before Open: Weekly: Uptrend Daily: Uptrend 120-Min: Up 30-Min: Side-Up 15-Min: Up-Side…