The S&P 500 Index ($SPX ) (SPY ) on Friday closed down -2.71%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down -1.90%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down -3.49%. December E-mini S&P futures (ESZ25 ) fell -2.61%, and December E-mini Nasdaq futures...