Stock Index Futures Edge Down

March SP500 is trading at 2241.00, down 4.50. March Nasdaq 100 is trading at 4905.50, down 18.25. March Russell 2000 is trading at 1357.70, down 2.7. March Dow Industrial futures are trading at 19739, down 36. Stock index futures are trading choppy and just above the session lows. Market chatter comments from corporations and headline news is making the rounds.