Pronóstico: Fed Decision in September?

Platform comparison

Market context

Polymarket is pricing **No change** at about 63%, with **25 bps hike** at roughly 37% and only a token chance assigned to cuts, so the contract is currently trading as a modestly hold-favoured event rather than a clean hike bet.[2][15] For users holding USDC on Polygon, that means the conditional tokens are reflecting the market’s view of the upper bound of the target federal funds range after the September 2026 FOMC decision, with settlement tied to the actual basis-point change versus the pre-meeting level.[7][17]

The current read sits between a few recent comparable signals. Reuters reported in late June that traders were already pricing about an 80% chance of a September hike, while more recent market snapshots show that conviction has eased back as the hold side regained ground.[5] That backdrop matters because this market is effectively a live consensus check: if the Fed merely leaves the range unchanged, the contract settles to the no-change bracket; if the FOMC delivers an increase, even a move to an off-grid level would be rounded up to the next 25 bps bucket under the market rules.[7]

A trader watching catalysts should focus on the data path between now and the September 15–16 meeting, especially inflation prints, labour-market releases, and any shift in Fed communication after the Jackson Hole period. The Fed’s official meeting calendar fixes the decision window, so the main volatility will come from incoming macro data and the market’s repricing of Fed funds futures rather than from the calendar itself.[17] Recent coverage from J.P. Morgan Wealth Management also pointed to higher oil prices and persistent inflation pressure as reasons some desks have moved towards a September hike view.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Fed Decision in September? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.