Yes, I usually have upto a 100k swing once or twice a year, which is not very terrible for my acocunt size. In currencies it has become USD vs all the other currencies. The way I try to trade - going with the trend even positions in different currencies these days just end up being one big position against USD. Doing 4-8 contracts a trade and a 100pip stop, I can expect to have this kind of a loss every once in a while. I enter a stop loss the same time I enter a trade. As long as I know my max exposure, I am ok taking the loss.