I was trading the Dax future in London on 911. I had been losing money all day as the market traded very quietly without any trend before the US opened. The market came off quickly, about 10 points, the move looked significant as it had been almost a flat line on the charts in comparison, we did not have the tv on at this point, I hit the bid and the market kept going down, I bought back five ticks lower. I did this three times as the market moved lower, the last time I sold the low and the market bounced, I took a small loss. Then someone shouted out that a plane had hit the wtc and the tv was turned on. The market collapsed over 100 points and I missed hitting the bid as the move was so quick, the market rallied a bit and then the second plane hit, I again missed hitting the bid. The market must have been off 300-500 points by then and I was flat. A bit later someone comes running out of the next office saying the pentagon had been hit according to reuters. I hit the bid and then try to buy back about 20 points lower immediately and the order gets rejected by eurex as the market had moved too quickly. I then put another order in and buy back about 30 ticks lower. The market most have gone down about another 100 points. The Dax was down 8.1% for the day. It only stopped going down when a 2000 lot bid appeared. I didn't trade for about three days afterwards as I was too busy watching tv and felt sick that I had traded through the start of a war when so many people died. I have moved home and trade options now.