Event contract pricing put a quarter point Federal Reserve increase in December at about 72 percent on Tuesday morning, with a hold at about 26 percent and a cut at about 2 percent, according to market trackers averaging Kalshi and Polymarket prices. That number, updated through the morning, drove much of the market coverage before the Federal Reserve itself has said anything new. In modern financial communication, the market price is often the headline, and the official decision, when it comes, is judged against that price.
The pricing reflects the October decision and the data since. The Federal Reserve held its target range at 3.75 percent to 4.00 percent, with two policymakers dissenting for an immediate increase. Headline inflation near 3.6 percent and core inflation near 3.1 percent keep the tightening bias alive, while third quarter growth at an annualised 3.4 percent suggests the economy can absorb higher rates. Event contracts compress that complex picture into a single probability, which is useful for headlines and dangerous if read as a forecast from the Fed itself.
Why a probability is not a prediction
A market price is an estimate from traders, not a vote count and not a Federal Reserve forecast. It changes with each data release, each speech and each news report, and it can move sharply on a single jobs or inflation print. Research cited by market trackers notes that day before meeting prices have outperformed futures in predicting decisions, which explains why journalists cite them, but outperformance on average does not make any single reading certain. A 72 percent reading still leaves more than a one in four chance of a different outcome.
The global macro briefing on 2 November makes the same distinction by presenting the December probability alongside the underlying data, rather than as a standalone verdict. That presentation is the model for responsible coverage: show the price, show the data that justifies it, and show what could change it. Coverage that reports only the probability, without the jobs report on Friday and the inflation report on 10 November that will move it, misleads readers about how settled December really is.
What communicators should do
Communicators covering rates should date every probability, name its source, and explain its settlement rule, because different venues settle differently. They should also prepare two versions of the story, one for a December increase and one for a hold, so that the official decision can be reported quickly and accurately against the expectation. In a market where the expectation moves daily, preparation matters more than speed, and clarity about what a number is, and is not, is the most valuable service a publisher can offer.
