Will there be no change in Fed interest rates after the December 2026 meeting?
As of Sep 28, 2026, 10:06 AM ET, Polymarket priced this market at 19.5% (down from 22.5% 24 hours earlier). It had $43.5K traded in the past 24 hours, $141.2K of order-book liquidity and a bid-ask spread of 1.0 pts. probcast.co rates the support behind this price as weak.
The move lacks solid trading support — treat the new probability with caution.
The pricing has weak support: healthy trading volume and market depth, a tight spread.
How credible was the move?
Three separate questions — a move can be genuine while the latest price is still settling. Methodology →
Move validity
Is the move backed by real trading and depth?
WeakThe pricing has weak support: healthy trading volume and market depth, a tight spread.
Consensus stability
Has the market settled at the new probability?
FormingMovement has slowed (3 points over six hours) but the market has not fully settled.
Contract clarity
Will the rules resolve without ambiguity?
HighThe resolution rules are relatively specific, with a named source and a defined deadline.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
What this market actually measures
The FED interest rates are defined in this market by the upper bound of the target federal funds range. The decisions on the target federal funds range are made by the Federal Open Market Committee (FOMC) meetings.
This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.
View full official resolution rules
The FED interest rates are defined in this market by the upper bound of the target federal funds range. The decisions on the target federal funds range are made by the Federal Open Market Committee (FOMC) meetings. This market will resolve to the amount of basis points the upper bound of the target federal funds rate is changed by versus the level it was prior to the Federal Reserve's December 2026 meeting. If the target federal funds rate is changed to a level not expressed in the displayed options, the change will be rounded up to the nearest 25 and will resolve to the relevant bracket. (e.g. if there's a cut/increase of 12.5 bps it will be considered to be 25 bps) The resolution source for this market is the FOMC’s statement after its meeting scheduled for December 8-9, 2026 according to the official calendar: https://www.federalreserve.gov/monetarypolicy/fomccalendars.htm. The level and change of the target federal funds rate is also published at the official website of the Federal Reserve at https://www.federalreserve.gov/monetarypolicy/openmarket.htm. This market may resolve as soon as the FOMC’s statement for their December meeting with relevant data is issued. If no statement is released by the end date of the next scheduled meeting, this market will resolve to the "No change" bracket.
Why the odds moved
The probability fell 3.0 percentage points over the last 24 hours (22.5% → 19.5%).
No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.
What could move this market next?
- The scheduled event takes placeDecember 9, 2026 at 6:59 PM ET
The contract resolves on the event's outcome.
Derived from the contract's own mechanics as of Sep 28, 10:14 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.
Advanced analysis (experimental)
Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±23 pts.
What's happening
Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.
- Thin book and/or wide spread.
Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.
More details — reliability score, dynamics, durability
- Choppy / mean-reverting90%
- Thin-liquidity spike3%
- Stable consensus3%
Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.
Secondary read: leaning toward Reacting to news.
A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.
Market data
24h volume
$43.5K
Liquidity
$141.2K
Total volume
$303.6K
- Category
- Macro / Fed
- Venue
- Polymarket
- Open interest
- —
- Spread
- 1.0 pts
- Best bid
- 19.0%
- Best ask
- 20.0%
- 7-day range
- 18.5% – 23.5%
- Resolves
- Dec 9, 2026
Cross-venue check
0.5 pts apartKalshi prices this same question at 20% vs Polymarket at 20%. The venues broadly agree, which adds confidence to the price.
Compare on Kalshi →