Fed Decision in September?

Platform comparison

Market context

Polymarket’s contract is pricing a **1%** chance of a September FOMC move right now, with nearly all value sitting on no change. On the platform, the market is settled in **USDC** on **Polygon**, and the outcome resolves through **conditional tokens** against the size of the change in the upper bound of the federal funds target range versus the level before the September 2026 meeting. That structure matters because the market is not asking whether the Fed sounds hawkish, but whether the committee actually moves the rate by the settlement date and by how many basis points.

For context, this is an unusually low implied probability for a live FOMC meeting, but not a blank slate. Recent comparable pricing has swung sharply as traders have repriced the path of policy: Reuters reported in late June that futures implied about an 80% chance of a September move, while CME-fed-watch-based coverage in late July put odds of a hike around 82% after earlier softer readings[2][6]. Polymarket’s own dashboard has also shown the contract leaning towards no change, with a 77% display for no change and 22.7% for a 25 bps hike across its broader rates page[15]. For a trader, the key point is that the current 1% YES price suggests this specific market is either very stale or being priced far differently from the broader rates complex.

The main catalysts are the Fed’s data dependence and the timing of its late-summer communications: upcoming inflation prints, labour-market releases, and any shift in Treasury yields or Fed funds futures before the September meeting. The Federal Reserve’s official calendar sets the meeting schedule, and the September 2026 decision window is the one that matters for settlement[12]. Because the market rounds any off-grid move up to the nearest 25 bps bracket, traders should also watch for any unusual re-pricing around an outside-sized hike or cut, although current outside odds appear minimal in the market data cited above[3][11].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track 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

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

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

Do I need to KYC for this market?

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

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.