Directional Bias For The Day: S&P Futures are little changed to higher; Mostly moving sideways since 12:00 PM on Wednesday A narrow wedge is emerging on 15-minute charts; break above 2728.25 will have bullish implications and break below 2721.75 bearish Odds are for sideways day with up-bias – watch for break above 2728.25 and break below 2721.75 for more clarity Key economic…