Fed Decision in September?

Platform comparison

Market context

The Federal Reserve’s September 2026 meeting ends with a policy announcement on 16 September, and this contract resolves on the change in the upper bound of the fed funds target range versus the pre-meeting level. The market is therefore a direct test of whether policymakers leave the current 3.50%–3.75% range unchanged, cut by 25 basis points, or hike by 25 basis points, with the broad prediction-market lead still on *no change* at 56% and a 25bp increase next at 39%; by contrast, Robinhood shows 65¢ for unchanged policy and 36¢ for a 25bp hike, while cuts are only 5¢.[19][12]

The current 1% yes probability is far below the mainstream cross-platform pricing and also sits against a body of analyst commentary that has recently skewed hawkish. JPMorgan Wealth Management has said its base case is now a 25bp hike in September, and Reuters reported traders were pricing roughly an 80% expectation of a September increase in late June, showing how quickly expectations can move when inflation or growth prints surprise.[9][7] ING’s current read is less aggressive, with its economists noting the Fed’s own median forecast points to one further cut in 2026, even as market pricing leaned towards another 50bp of easing later in the year.[3]

For traders, the key catalysts are the data and communications path into the 15–16 September meeting: the Fed’s own calendar confirms the meeting dates, and the decision, updated projections and dot plot arrive together on 16 September, followed by Chair Powell’s press conference.[1][2] That means the next inflation prints, labour-market releases and any shift in Fed communication will matter more than the current headline odds, because the contract will move on whether the September statement marks a hold, a cut, or an upside surprise in the upper bound.[2][20]

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.

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.

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.

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.