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Home/Macro / Fed/Fed Rate Hike by September 2026 Meeting?
PolymarketMacro / FedUpdated 4m ago

Fed Rate Hike by September 2026 Meeting?

Market probability
45.5%
−1 percentage point
over 24 hours46.5% → 45.5%
101 days until the event deadline
Deadline: December 8, 2026 at 7:00 PM ET

Confirmed repricing; the market has settled at the new level.

The pricing is supported by 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?

Strong

The pricing is supported by healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$39.4K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve to “Yes” if the upper bound of the target federal funds rate is increased at any point between December 16, 2025 and the completion of the listed Federal Open Market Committee (FOMC) meeting (inclusive of any rate hike announced as a result of the listed meeting). Otherwise, this market will resolve to “No”.

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

This market will resolve to “Yes” if the upper bound of the target federal funds rate is increased at any point between December 16, 2025 and the completion of the listed Federal Open Market Committee (FOMC) meeting (inclusive of any rate hike announced as a result of the listed meeting). Otherwise, this market will resolve to “No”. If the listed meeting does not take place within 7 calendar days (ET) of its scheduled end date, 11:59 PM ET, and no qualifying rate hike has been announced, this market will resolve to "No". Emergency rate hikes will qualify. The primary resolution source for this market will be the official website of the Federal Reserve (https://www.federalreserve.gov/monetarypolicy/openmarket.htm), however a consensus of credible reporting may also be used.

What could move this market next?

  • The market's deadline arrivesDecember 8, 2026 at 7:00 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Aug 29, 3:31 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: high · expected error ±13 pts.

Quote-drivenLegacy movement classifier: watch

What's happening

medium classifier confidence
Quote-driven

A tight, deep, quote-driven book with little executed flow. The price is stable but reflects resting quotes more than active trading.

Market data

Change (pts)1H0.06H-1.024H-1.07D-1.0
Score breakdown — Movement, Liquidity & Trust

ProbCast Trust Score

71/ 100 · Medium

Reasonably supported. Generally reliable, with minor caveats. Main caveat: limited history.

ProbCast measures how reliable this market probability appears — not what to trade.

Movement20

Magnitude of recent probability change

Liquidity79

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🇺🇸 Will the Fed raise interest rates in September 2026?

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ProbCast — Odds Reliability

Know whether prediction-market odds can be trusted. ProbCast analyzes liquidity, market activity, spreads, and price movement to help distinguish meaningful repricing from thin-market noise.

Questions? Chat with us on Telegram
TodayTop MoversEventsAll MarketsWhat ChangedVenue DivergencePolymarket vs KalshiMethodologyCoverageMeta's ArenaWatchlistTerms of UsePrivacyCrypto
  • Tight spread on a liquid, calm market

The latest price is a usable but caveated read — weigh it with the market state.

More details — reliability score, dynamics, durability
Reliability score
45Medium
Where the price path tends to go next386 observed
  • Stable consensus95%
  • Choppy / mean-reverting3%
  • News repricing1%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~4h
PredictabilityStable

Secondary read: leaning toward Trading normally.

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.

24h volume

$67.4K

Liquidity

$70.1K

Total volume

$1M

Category
Macro / Fed
Venue
Polymarket
Open interest
—
Spread
1.0 pts
Best bid
45.0%
Best ask
46.0%
7-day range
45.5% – 46.5%
Resolves
Dec 8, 2026

Depth of the order book and volume

Trust breakdown

71/100 · Medium

Reasonably supported. Generally reliable, with minor caveats. Main caveat: limited history.

  • Liquidity anchor+56
  • Price steadiness+24
  • Limited history-8
Trust score71 / 100
How these scores work →
View on Polymarket

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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1%YESTrust 100
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Will there be no change in Fed interest rates after the September 2026 meeting?

56%YESTrust 75
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Will the Fed increase interest rates by 25 bps after the September 2026 meeting?

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ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. ProbCast is not a betting platform, exchange, or broker and does not provide buy or sell recommendations. Intended for users 18+; availability of prediction-market activity varies by jurisdiction. Venue data is aggregated from third parties and may be delayed or inaccurate. See our Terms of Use.

Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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