Rate decision

The outcome of a policy meeting held by a central bank committee on a calendar published far in advance. The announcement is rarely a single number. It arrives as the rate itself, a statement setting out the committee's reading of conditions, in many cases the split of the vote, and periodically a set of forecasts and a press conference. Each of those parts is capable of moving prices on its own, and they do not always point the same way.

By the time a decision is announced, money market instruments have already priced what the committee is expected to do, so the reaction comes from the gap between the announcement and that expectation rather than from the level of the rate. This is why a decision that matches the consensus exactly can still produce a violent move, if the statement, the vote split or the forecasts differ from what was assumed, and why a market can reverse twice inside an hour as the statement, then the projections, then the press conference land.

The common misreading is to treat the level as the event. What is being repriced is the expected path: where the rate is expected to sit in a year, not where it sits today. That is also why guidance about future meetings is scrutinised more closely than the decision itself. Committees are explicit that guidance is conditional on the data and revise it routinely, and practitioners disagree openly about how much weight it deserves, precisely because a committee that binds itself too tightly loses the ability to respond.