You don’t need IFR to tell you that. You can presume it. You can assume it. USD/JPY was stuck in a huge choppy market. There are option players who have taken out DNT’s in order to play the low volatility.
Also any bearish players betting on further jpy strength can buy One Touches with barrier levels there as well.
There may also be some people who thought that the BoJ may intervene and therefore support levels would hold, and they can express that view by buying 79.00 or 78.50 No Touches.
There are some big option structures at 75.00