News is the only big thing that can change the course of this market.. this is why whenever any big news released I tried to stay outside of the market.. to save my account from any unexpected movement.. because most of the news creates spikes and there is a big chance of getting a hit by your stop-loss in this process.. and Thats obviously true! Even in my opinion, market price movement actually based on expectations including news release expectation. But, for clearer view here. I think we arent talking about data expectation which always shown in many economical callendar. Well, that kind of expectation really does matter, but actually we will get little hardfull to trade that kind of expectation since it released far before the data news release its self.