Fed Decision in July?

Platform comparison

Market context

The Federal Open Market Committee is set to convene on 28–29 July 2026 to determine whether the upper bound of the target federal funds rate will shift from its current 3.75% level. This real-world decision directly dictates the settlement of the prediction market, where the crowd currently assigns an 82% probability to a rate increase, implying traders expect at least a 25 basis point hike.

Historically, the Fed has maintained rates on hold since late 2025, with the most recent adjustment being a 0.25% cut in December 2025 that established the 3.50%–3.75% range. However, the June 2026 meeting marked a pivotal shift: Chairman Kevin Warsh and the FOMC removed language suggesting future cuts and revised the "dot plot" to indicate a hike is likely by year-end, with the median projection now standing at 3.8% [1][3]. This pivot from a cut-focused outlook to a hike-focused one frames the current 82% probability as a logical continuation of the committee’s revised stance on inflation sustainability amid Iran war-related price spikes [1].

Traders approaching this market programmatically should monitor the FOMC policy statement released at 18:00 GMT on 29 July, alongside the accompanying "dot plot" for median rate projections. The primary catalyst is the persistence of inflation spikes linked to the Iran conflict, which has already driven derivatives markets to price in a nearly 60% chance of a hike by December 2026 [3]. Automated copy-trading bots should watch for any deviation in Warsh’s post-meeting commentary regarding the timing of the next move, as traders are now anticipating a potential hike as early as October [1]. The CME Group’s FedWatch tool remains a critical data feed for real-time probability adjustments following the announcement [1].

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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

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 Review 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.