Trader Brian Jones on Twitter: "S&P futures now down only 20. $KO on earnings and $TWTR on take over possibilities are higher. The key as always will be what $AAPL does today. Market will do what $AAPL does." / Twitter

S&P futures now down only 20. $KO on earnings and $TWTR on take over possibilities are higher. The key as always will be what $AAPL does today. Market will do what $AAPL does.