Directional Bias For The Day: S&P Futures are lower; The odds are for a sideways to a down day – watch for a break above 3265.50 for change of sentiments Key economic data due: HPI ( 0.3% est.; prev. 0.2%) at 9:00 AM Existing Home Sales ( 4.77M est.; prev. 3.91M) at 10:00 AM Directional…