BOJ's introduction of negative rates has sent traders into a spin
Eamonn had some excellent coverage and a succinct wrap here of the BOJ's surprise ( to many) move.
Nikkei plunged to session lows of 16767.09 an hour ago but is now back to 17474.73, up 2.52% and that's given USDJPY another piggy-back up to 120.40 from 119.20.
Not a market for the newbie, but lessons to be learnt and opportunity undoubtedly as the year's volatile start continues.
Kuroda delivers his presser at 06.30 GMT and for once it should be one of note, if only to explain more of the reasoning behind the move.
Update 05.53 GMT
Now up 3.26% at 17596.20. USDJPY higher with it at 120.65