You do not need to predict what a central bank will do at its next meeting. The market has already done the work and published the answer as a price. Most traders never look at it. Instead they argue about what the central bank should do, which is a genuinely different and much less useful question, and then act surprised when the currency moves on what the market expected rather than on what they thought was fair.
Where the number comes from
Interest rate futures and overnight index swaps are contracts whose value depends on where a central bank sets its policy rate over specific future periods. Because real money trades them, their prices encode the market's collective bet on future rates. Strip that information out and you get an implied rate path: the probability of a hike or cut at each upcoming meeting, and the expected level of the policy rate at future dates.
In plain terms, the path lets you say things like the market is pricing roughly an eighty percent chance of a quarter-point cut at the September meeting, and about two cuts in total by year-end, with the rate expected to settle near some terminal level a year out. Those are not forecasts you produced by staring at charts. They are the market's own numbers, updated tick by tick as new data arrives.
The market path is not the central bank's own forecast
It helps to keep two things separate. Some central banks publish their own projection of where rates are heading, such as the dot plot the US Federal Reserve releases. That is the committee's guess. The implied rate path is the market's guess, priced with real money. They frequently disagree, and the gap between them is itself informative.
When the market prices a very different path from the one the central bank has advertised, one side is going to be forced to move. Either the data proves the central bank right and the market reprices toward it, or the central bank blinks and follows the market. Watching that gap tells you where the tension is, and tension is where the sharp moves come from. Trade the market path for what is priced, and read the central bank's own projection as a statement of intent that may or may not survive contact with the data.
Why it beats guessing
Your opinion about the next rate decision is one view. The implied path is the weighted view of everyone with money on the line, refreshed continuously. That does not make it correct, but it makes it the benchmark, and in trading the benchmark is what you get measured against whether you look at it or not.
More importantly, the path reframes the question you should be asking. The useful question before a central bank meeting is not will they cut. It is what is already priced, and does the incoming data justify a different path than the one the market holds. You are no longer trying to predict the outcome in a vacuum. You are looking for a gap between what the market expects and what you think the evidence supports. That gap, when you can find one, is where the trade is.
The insight that makes it tradable: repricing, not the outcome
This is the part that catches people out. Currencies very often do not move on the rate decision itself. They move on how the decision, and the language around it, shifts the path.
If a central bank hikes exactly as the path implied, the currency may do nothing, or even fall, because the hike was already in the price. Traders call this buy the rumour, sell the fact. The tradable event is not the hike. It is the surprise relative to what was priced, and the way the expected path repositions afterwards.
A hawkish surprise, meaning the central bank signals higher rates for longer than the market expected, pushes the whole path up and tends to lift the currency. A dovish surprise does the reverse. The magnitude of the currency move tracks the size of the repricing, not the size of the rate change. A quarter-point cut that was fully expected can be a non-event, while an unchanged decision paired with an unexpectedly hawkish statement can send a currency sharply higher, because the path moved even though the rate did not.
How to actually use it
The path is most powerful used as a reference point around scheduled events. A workable approach:
Before a meeting or a major data release, read the current path. Know what the market has priced so you can recognise a surprise when it happens, rather than reacting to a headline in isolation.
Form a view on the data, then compare it to the path. If incoming inflation and jobs numbers point to a more hawkish outcome than the path implies, the currency has room to reprice higher, and vice versa. The trade lives in the difference.
After the event, watch whether the path actually moved. If the central bank did roughly what was priced and the path barely shifted, the initial spike is likely to fade. If the path lurched, the move has a reason to continue.
This also sharpens how you read everything else. An economic calendar release only matters to the extent it moves the path, and a widening rate differential between two currencies is really just a divergence between two implied paths. The path is the thread that ties the fundamentals together.
The limitations, so you do not overtrust it
The implied path is the best single reference for rate expectations, but it is not a promise and it is not perfectly clean.
It is a probability, not a prophecy. The market can be wrong, and paths get revised hard when the data breaks the consensus. The advantage is not that the path is always right. It is that you are wrong alongside the market and you can see the instant it changes its mind.
Longer horizons get noisier. Near-term meetings are priced fairly tightly. Expectations a year or more out carry a term premium and other technical distortions, so treat the far end of the path as a mood rather than a measurement.
Liquidity and mechanics vary across central banks and instruments, so the precision differs from one currency to the next.
None of that undermines the core point. Guessing what a central bank will do, unanchored to what is priced, means you cannot tell a surprise from a non-event, and the surprise is the only part that moves your pair. TradeSave+ shows the implied rate paths for the major central banks in one place, so you can see what is priced before an event instead of finding out afterwards. Read against a differential and the prevailing risk regime, the path is also the first thing to check before putting on a carry trade , because a path that is quietly turning dovish is often the earliest warning that the yield you are collecting is about to get repriced away.