Directional Bias For The Day: The futures were little changed at 8:30 AM Intraday charts are showing mixed trend On Friday at 4:00 PM, S&P future (Sept contract) closed at 2185.50 and the index closed at 2186.48 – a spread of about 1.00 points Key Levels: Critical support levels for S&P 500 are 218.02, 2175.10, and 2170.67 Critical resistance levels…