Fed decisions (Jul–Oct)

Platform comparison

Market context

The Federal Reserve's policy stance over the next three months hinges on decisions at FOMC meetings scheduled for late July, mid-September, and late October 2026. The current 0% implied probability on the YES side—indicating no rate cuts or hikes across this window—reflects market expectations of a held federal funds rate. The upper bound of the target range serves as the settlement metric, meaning any movement in either direction triggers resolution against the YES position. Across major platforms, this market shows material divergence: Polymarket's decimal odds format and Kalshi's binary structure handle the same underlying event differently, with Kalshi's regulatory framework in the US permitting direct settlement on Fed decisions, whilst Polymarket's offshore structure and Betfair's traditional betting interface each carry distinct fee schedules and liquidity profiles for rate-sensitive contracts.

Historical precedent suggests extended hold periods are uncommon once economic data begins shifting materially. The Fed maintained rates through consecutive meetings only twice in the past decade—most recently in 2018–2019 when inflation remained subdued. Current inflation readings and labour market data will drive the narrative between now and October. The Fed's June 2026 communications and any revisions to the Summary of Economic Projections at the July meeting represent critical catalysts; traders should monitor the PCE inflation print scheduled for late August and employment figures released monthly, as these directly influence FOMC forward guidance.

The 0% probability reflects high conviction that at least one directional move occurs within this three-meeting window. Smarkets' fractional odds display and Kalshi's fixed-spread model both capture this consensus, though fee structures differ materially on smaller position sizes, affecting breakeven thresholds for traders evaluating conviction levels.

Methodology

This page compares Fed decisions (Jul–Oct) specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.