The pair just hit an air pocket of sorts, falling from 150.70 to 149.85 before keeping around 150.40 levels currently. It doesn’t look or smell like intervention, especially since traders have been cautious in pushing the pair higher since the break of 150.00 earlier in the day. The gains are picking up in the past hour and it would make more sense for Tokyo to intervene at 150.00 if they wanted to instead of doing it now. It seems like perhaps there was a run of stops rather than anything from Japanese officials.
USD/JPY 1-minute chart