Stock Index Futures Extend Losses

September SP500 is trading at 2169.50, down 8.00. September Nasdaq 100 is trading at 4773.50, down 18.25. September Russell 2000 is trading at 1220.50, down 9.40. September Dow Industrial futures are trading at 18430, down 36. Stock index futures have extended the session losses, trading is active and choppy. The Department of Labor is scheduled to report weekly jobless at 8:30 a.m. ET.