Directional Bias For The Day: Futures are mixed to little changed Drifting lower since July 13 9:00 PM high of 2447.25 Odds are for a sideways to an up day; watch for break below 2439.00 for a change of fortunes; Key economic data due: CPI (est. 0.1%) and Core CPI (est. 0.2%) at 8:30 AM Retail Sales (est. +0.1%) and Core Retail Sales (est. 0.2%) at…