Who will be in the Burnham cabinet?

Platform comparison

Market context

Andy Burnham has already confirmed his first Cabinet, locking in a 100% YES price on Polymarket for any listed minister who secured a role within the seven-day appointment window. The contract trades at parity because the on-chain conditional tokens for these positions are fully backed in USDC on Polygon, with no room for doubt given the live blog confirming John Healey as Chancellor and Ed Miliband as Foreign Secretary [1][4].

Historically, UK Cabinet formations resolve with near-certainty once the Prime Minister’s initial list is published, as seen in 2024 when Rishi Sunak’s reshuffle left no ambiguity on ministerial status. Burnham’s appointment mirrors this pattern: Lucy Powell’s Education Secretary role and Shabana Mahmood’s retention as Home Secretary were announced immediately, eliminating the risk of late reversals that might have previously unsettled similar prediction markets [1][3].

Traders should monitor the official Monarch’s appointment log for the final seven-day window, though the Standard’s full list already names inclusions like Anneliese Midgley and Hamish Falconer alongside exclusions such as Peter Kyle and Hilary Benn [2]. The AI Minister role for Kanishka Narayan and Housing Minister Matthew Pennycook’s Cabinet attendance are also confirmed, meaning any further announcements will likely be minor additions rather than core Cabinet shifts [2]. With the settlement window closing in 2026, the 100% price reflects the completed nature of Burnham’s first Cabinet.

Sources: 1 · 2 · 3 · 4

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 Scam?. 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.

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.