Market expectations for a Federal Reserve rate cut in September have strengthened sharply after Fed Chair Jerome Powell delivered dovish remarks at Jackson Hole. Across traditional rate markets and prediction platforms alike, traders are increasingly aligning around one central view: the Fed is most likely to begin easing with a modest 25 basis point cut, rather than a larger or more aggressive move.
CME, Polymarket, and Kalshi Are Pointing in the Same Direction
As of Aug. 23, 2025, data from CME Group’s FedWatch tool showed a 75% probability that the Federal Reserve will lower the federal funds rate by 25 basis points at its September meeting. The remaining 25% reflected the possibility that policymakers leave rates unchanged. While not absolute, those odds indicate that a quarter-point cut has become the market’s base case.
Prediction markets are leaning even more decisively toward easing. On Polymarket, traders have pushed the probability of a 25 basis point cut in September 2025 to 78%, representing a 21% jump in recent sessions. The broader market for any rate cut by September is pricing in an even stronger 80% probability, while the odds of at least one cut at some point in 2025 have risen to 93%.
That combination suggests traders are no longer debating whether the Fed will pivot at all, but are instead focusing on the timing and size of the first move. Right now, the consensus view is that the central bank will act carefully, choosing the smallest standard adjustment rather than signaling urgency.
A 25 bps Move Is the Clear Favorite
Although sentiment has turned strongly toward easing, markets are not pricing in a dramatic policy shift. On Polymarket, only 3% of bets currently imply a larger 50 basis point cut. Meanwhile, the probability of a rate increase is below 1%, underscoring how little confidence traders have in any renewed tightening cycle.
The market for “no change” has also weakened significantly. According to the reported figures, the odds that the Fed leaves rates unchanged in September have dropped to 20%, down 19 percentage points as positioning moves toward an easing scenario. In practical terms, capital is increasingly concentrated on a quarter-point cut, while wagers on a pause or surprise hike continue to thin out.
This matters because the distribution of probabilities shows more than just a directional bias. It reveals that traders are coalescing around a very specific policy path: a cautious start to easing, not a sudden reversal. The Fed, in this view, would be acknowledging softer conditions or shifting risks, but without abandoning its preference for measured action.
Kalshi Shows Similar Conviction, Backed by Sizeable Wagers
Kalshi is telling a nearly identical story. On that platform, traders are pricing in a 77% chance that the Fed trims rates by 25 basis points in September, an increase of 18 points in recent activity. The probability that the central bank holds rates steady has fallen to 21%, marking a 17-point decline as sentiment shifts further toward easing.
There is still a small window for a more forceful move. Kalshi’s market leaves roughly 5% odds for an outcome more aggressive than a quarter-point cut. Even so, that possibility remains clearly secondary to the dominant market thesis. The strongest conviction remains behind a limited, controlled step lower in rates.
Importantly, the scale of participation is substantial. More than $163 million in wagers are shaping the odds on Kalshi. That amount of money does not guarantee the outcome, but it does illustrate the intensity of market interest in the Fed’s September decision and the degree of confidence behind the current consensus.
Why Powell’s Jackson Hole Tone Matters
The shift in expectations followed Powell’s dovish tone at Jackson Hole, which appears to have encouraged traders to believe the Fed is moving closer to easing. While the source material does not detail the full content of his remarks, markets clearly interpreted the message as supportive of a policy pivot rather than a continuation of restrictive positioning.
That reaction has been broad-based. Futures markets, decentralized prediction venues, and regulated event-contract platforms are all converging around the same idea: September increasingly looks like the likely start of the Fed’s easing cycle. The key question, based on current pricing, is not whether the first move will be large, but whether the Fed will choose the most cautious cut available.
Markets Are Converging on a Measured Start to Easing
Viewed together, the numbers from CME FedWatch, Polymarket, and Kalshi point to a striking level of agreement. A 25 basis point cut has emerged as the overwhelmingly preferred scenario, while expectations for no move have fallen and the odds of a larger cut remain limited. Just as notably, the market sees almost no realistic chance that the Fed will tighten further.
In short, traders across multiple venues are positioning for a September shift in monetary policy. The message from the data is consistent: if the Federal Reserve decides to begin easing, markets expect it to do so carefully, with a single quarter-point reduction rather than a bold policy swing.