The Fed Rate Decision September 2026 market prices five brackets on one FOMC meeting, and the shape is the story: the cut side trades as tail risk while a hike trades as a live scenario, inverting how these contracts have priced since the Fed began easing in September 2025. Roughly $37.4M in cumulative volume sits across Kalshi and Polymarket. The live board above carries current prices; resolution comes on the FOMC statement from the meeting concluding September 16, 2026.
Most Fed contracts are a referendum on how fast the committee cuts. This one is not. Through mid-August 2026, the September board prices a rate hike as a live scenario and both cut brackets as tail risk, which inverts the question these markets have carried since the Fed began easing in September 2025. The data explains it. Headline CPI ran 3.4% year over year in July 2026 and core PCE ran 3.3% in June 2026, both well above the Fed's 2% objective, while the upper bound of the target federal funds range has sat at 3.75% since December 11, 2025. Roughly $37.4M in cumulative volume has traded across the five brackets on Kalshi and Polymarket.
The Federal Reserve has not moved the target range in eight months. The upper bound dropped to 3.75% on December 11, 2025, after cuts in September and October of that year, and it has held there through every meeting since, including the July 29, 2026 decision that settled on the no-change bracket. A standstill that long stops reading as a pause and starts reading as a stance.
What changed underneath it is the inflation path. Headline CPI was 3.4% year over year in July 2026 per the Bureau of Labor Statistics. Core PCE, the gauge the committee formally targets, was 3.3% year over year in June 2026 per the Bureau of Economic Analysis. Neither number is falling toward 2% on its own. At the same time the labor market has firmed rather than cracked: unemployment was 4.1% in July 2026, down from 4.3% in May. A committee facing above-target inflation and a tightening labor market has no clean case for easing, and that is exactly why the cut brackets on this board trade where they do.
The hike side is the other half. Pricing a hike as a live outcome is a statement that traders assign real weight to the committee concluding that 3.75% is no longer restrictive enough. That is not the base case here. The no-change bracket still carries the largest share of the board by a wide margin, and the modal expectation is that the committee sits still again. The information is in the skew around that base case, which points up rather than down. The live board above shows where each bracket trades right now, and our September 2026 Fed decision breakdown makes the case on either side of the hold.
One meeting is a narrow window on a policy stance. The 2026 Fed rate hike market prices the same upside risk across the whole calendar year instead of a single date, and it is the better read for anyone who thinks the direction is right but the timing is early.
Both books list the same five brackets, so the comparison is clean. Kalshi runs the contract under the KXFEDDECISION-26SEP series. Polymarket lists its own version of the same question, resolving off the same FOMC statement.
The volume split is the striking part. Of the roughly $37.4M in cumulative volume, about $31.8M sits on Polymarket and about $5.7M on Kalshi. Polymarket carries close to 85% of the money on a US macro contract, which is not the split most people assume for the venue set.
On price the two books agree closely. The hold and hike-25 brackets, which together account for nearly all of the board's implied probability, quote within a few cents of each other across the two venues. Differences that small on a five-leg contract are usually quote timing rather than genuine disagreement: one book's quote on a thin bracket can sit stale for hours while the other refreshes. Treat a small cross-platform gap on this board as noise until it survives a full session. The live board above shows both books side by side.
The market resolves on the FOMC statement from the two-day meeting scheduled for September 15 and 16, 2026, released at 2:00 p.m. ET on the second day. Resolution is measured as the change in the upper bound of the target federal funds range against its level going into the meeting, currently 3.75%. Five brackets cover the outcome space: a cut of more than 25 basis points, a cut of 25, no change, a hike of 25, and a hike of more than 25. Any move that does not land on a listed increment rounds up to the nearest 25 basis points, so a 12.5 basis point change settles in the 25 basis point bracket. The Federal Reserve publishes the official rate level and every change at federalreserve.gov.
Five things move this board between now and the meeting.
The nearest comparison is the July 2026 Fed rate decision market, which settled on the no-change bracket and shows how these contracts resolve in practice. For the calendar-year view, the no Fed rate cuts in 2026 market and the 2026 Fed rate change count market price the same policy path across every remaining meeting rather than one. Looking past this cycle, the Fed rate cut before 2027 market is where the easing question moved once the September brackets stopped carrying it, and the US recession 2026 market is the cleanest read on the growth shock that would force the committee's hand. Full coverage sits on the economics prediction markets hub.
This market resolves on the FOMC statement from the two-day meeting scheduled for September 15 and 16, 2026, released at 2:00 p.m. ET on the second day. The outcome is the change in the upper bound of the target federal funds range measured against its level going into the meeting, which is 3.75%. Five brackets cover the space: a cut of more than 25 basis points, a cut of 25 basis points, no change, a hike of 25 basis points, and a hike of more than 25 basis points. A move that does not land on a listed increment rounds up to the nearest 25 basis points, so a 12.5 basis point change settles in the 25 basis point bracket. The source of truth is the FOMC statement and the official rate level published by the Federal Reserve at federalreserve.gov. If no statement is released by the end date of the next scheduled meeting, the market settles on the no-change bracket.
As of August 13, 2026 the no-change bracket trades near 70c and a 25 basis point hike near 30c, with the two cut brackets combined under 2c. The live board at the top of this page carries the current cross-platform prices for all five brackets.
It resolves on the FOMC statement from the two-day meeting scheduled for September 15 and 16, 2026, released at 2:00 p.m. ET. Settlement is the change in the upper bound of the target federal funds range against the pre-meeting level of 3.75%.
Both Kalshi and Polymarket list all five brackets. Kalshi runs it under the KXFEDDECISION-26SEP series with roughly $5.7M in cumulative volume, while Polymarket carries about $31.8M of the roughly $37.4M total.
No. As of August 13, 2026 the two cut brackets combined trade under 2c, so the market treats easing at this meeting as a tail outcome. Headline CPI at 3.4% in July 2026 and unemployment at 4.1% are the reasons the cut side has no bid.
The August CPI report and the August employment situation report are the two prints that land before the meeting, and both come out before the Fed communications blackout that starts the second Saturday prior. A CPI reading above the 3.4% July pace is the most direct path to the hike bracket repricing higher.