Bank of Japan

The central bank of Japan. Policy is decided by its Policy Board, which meets on a published schedule and announces its decision without a fixed release minute, so the announcement lands inside a window rather than at a timestamp. That single procedural detail matters more to a screen than the decision itself does, because a market that cannot time an announcement prices the whole window rather than an instant.

The institution has spent a longer stretch than any other major central bank operating at and below the floor of its policy rate, which pushed it further into balance sheet instruments than its peers: large scale asset purchases, control of a target yield along the government bond curve, and purchases of assets other central banks have not bought. A consequence is that its policy is read from the terms of its operations as much as from its rate, and a change to an operating parameter can be a policy decision in everything but name.

On transparency it sits between its peers, publishing the decision, the vote, a quarterly outlook report, a press conference, minutes in the following weeks and full transcripts after a long delay. The yen's role complicates the reading further: it is a currency participants hold in periods when risk appetite falls, so it can strengthen on events that have nothing to do with Japan, and a move in a yen pair is never attributable to the Bank without checking what the rest of the market did in the same hour.