I don't understand why anyone would want to be long the yen since last week or even the week before that, there's absolutely nothing positive coming out of Japan other than the possibility of introducing stimulus to the economy, and this is only a thought. Their political situation isn't stable either which is only adding to the yen's weakness. Short dollar/yen positions have been/are being unwound, and there's been a technical, fundamental and now this week, a sentiment shift on this currency. There will obviously be retracements and breaks however it's still looking very bullish to me. No prizes for guessing which way i'm positioned, but people should have a grasp of what is actually going on in the economy as well as knowing your technicals, if for nothing else, to help you stay in a trade.