Here are the BOJ bond buying plans for May – Cuts auction range to ¥250-350bn for 3-5year range

The BOJ have released their schedule for May
Auction sizes;
Eamonn flagged this release up earlier today.
As I mentioned in the comments earlier, there’s no real trading ramifications in this data. The BOJ’s policy now is to tinker with purchases to suit their yield control program, while still maintaining their overall QQE purchases amounts. The change today isn’t huge and is just designed to gently steer yields rather than whip them into place.