UsdJpy- Where to?

Since the start of November, UsdJpy has been flirting with the 150-151 zone, a level never seen by the pair for more than 3 decades and everyone is wondering when the pair will reverse its path.
The recent volatility suggests a top is near, however, considering its up spikes, setting a stop loss is quite difficult.
With this in mind, I will continue to monitor this pair closely, but we will need a daily close under 150 for selling confirmation.