Fed Decision in September?

Platform comparison

Market context

Polymarket is pricing this September FOMC contract at **1% YES**, so the market is effectively assigning almost no chance that the upper bound of the federal funds target range is raised at the September 2026 meeting. The contract settles on the size of any change versus the pre-meeting upper bound, with odd-sized moves rounded up to the nearest 25 basis points, and trades are bought and sold in USDC on Polygon through conditional tokens.

That pricing sits well below the broad rate-cut/hike debate seen across other venues this summer, where some futures and prediction-market snapshots have swung sharply around the same meeting. CNBC reported on 23 July that Fed funds futures were pricing an roughly 82% chance of a September hike, while Polymarket’s own market page cited June 2026 CPI at 3.5% year on year and a 63.5% trader consensus for no change[1][5]. The gap matters because the current 1% figure implies Polymarket is treating a September move as an extreme tail outcome rather than a base case.

For traders, the main catalysts are the run of incoming inflation and labour data before the FOMC’s September decision, plus any shift in Fed communication after the late-July meeting. The Federal Reserve’s calendar confirms the September policy meeting is the relevant decision point, and any fresh CPI, PCE, payrolls or unemployment releases can alter expectations quickly because this market only resolves on the official change in the target range[15]. If markets keep discounting cuts or a hold, the contract can stay pinned near zero; if data or Fed guidance turns sharply hawkish, the price would be the first place to reflect that repricing[1][2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.