If? And, of course, the reason given for the upcoming intervention, is the good old "speculative" wolfpack. The kneejerk reaction in the Yen is lower, but quite muted. The market seems to be expecting much more from the BOJ than mere ongoing rhetoric. Having seen the disastrous example of the failed SNB intervention, the central bank-vs-everyone else game will be far more interesting this time.
More as we get it.