Directional Bias For The Day: S&P Futures are higher; The odds are for a highly volatile and choppy day Key economic data due: Retail Sales (0.7% vs. 0.3% est.; prev. 0.4%) at 8:30 AM Core Retail Sales (1.0% vs. 0.4% est.; prev. 0.4%) at 8:30 AM Philly Fed Manufacturing Index (16.8 vs. 10.1 est.; prev.…