CME FedWatch Tool Explained: What Rate Probabilities Mean

CME describes FedWatch as a way to track the likelihood of changes in the Federal target rate at upcoming FOMC meetings, as implied by 30-Day Fed Funds futures prices. The tool's meeting tabs and target-rate outcomes are therefore not a direct survey of policymakers or a record of an announced decision.

Start with the selected meeting date and the tool's timestamp. A displayed probability belongs to that particular output, using the futures prices and methodology available at that time. A headline that keeps only a percentage and removes the meeting, time, and source loses the conditions that define it.

How CME FedWatch probabilities work explains the assumptions used to translate monthly futures pricing into the tool's meeting-outcome estimates.

FedWatch begins with 30-Day Federal Funds futures, not with a direct quote for one FOMC outcome. CME's methodology describes those contracts as incorporating market expectations of the average daily Effective Federal Funds Rate, or EFFR, during their named contract months. The contract month matters because a meeting can occur inside the month rather than at its boundary.

The New York Fed publishes EFFR for the prior business day. It defines EFFR as the volume-weighted median of overnight federal-funds transactions reported in its reference-rate data. The FOMC's target rate or range is a separate policy concept. A daily EFFR publication, a target range, a futures price, and a FedWatch percentage are related records, but they are not interchangeable.

SOFR futures versus Fed Funds futures separates EFFR-based contracts from SOFR-based contracts before a comparison turns a broad label such as “rate futures” into a false match.

FedWatch can make an implied market view easier to read, but its probability table is not a promise about what the FOMC will do. The underlying futures market can change, the tool uses assumptions, and a decision-making committee does not become bound by a futures price.

The reverse shortcut also fails: an actual decision does not make every earlier FedWatch output wrong. An earlier output described a dated model result under the information and market pricing then available. Preserve its timestamp before comparing it with later pricing or a later policy statement.

Before quoting a FedWatch result, record the selected FOMC meeting, the stated target-rate outcome, the displayed probability, the observation time and time zone, and the page or data source. If a chart compares the current result with one day, one week, or one month earlier, preserve which observation is being described rather than calling every value “current.”

The futures field matters too. A displayed last trade, an official settlement, and the price input used by a particular tool are not automatically the same record. Futures settlement price versus last trade shows why a label and timestamp belong beside a quoted futures value.

Four things are often compressed into one phrase such as “what the Fed will do”: FedWatch probabilities, the published EFFR, the FOMC target rate or range, and the FOMC's Summary of Economic Projections. They answer different questions and come from different records.

The FedWatch versus FOMC dot plot guide separates a market-implied meeting-outcome model from participants' policy-rate projections. SOFR futures price and implied rate also explains why a 100-minus-rate convention is a contract-defined rate record, not a general policy forecast.

This guide explains how to read a public market-data tool. It does not predict FOMC decisions or recommend a futures position, interest-rate view, or portfolio action. Current exchange methodology, official policy statements, market data, and account conditions govern any real-world decision.