The Bank of Japan is widely expected to do nothing to change or tweak monetary policy tomorrow.

But, that's not a unanimous view:

USD/JPY is dropping fast. Having said that, the USD is losing ground more widely, all major FX is higher against the dollar in the Asian morning here.

usdyen boj update 27 July 2023

The background to today's session here was the Federal Open Market Committee (FOMC) rate hike overnight: