Stock Index Futures Move Down

December SP500 is trading at 2140.00, down 4.25. December Nasdaq 100 is trading at 4897.50, down 5.25 December Russell 2000 is trading at 1214.2, down 9.7. December Dow Industrial futures are trading at 18116, down 19. Stock index futures are trading choppy and at the session lows. Market chatter about corporate earnings and global headline news is making the rounds.