Who will be in the Burnham cabinet?

Platform comparison

Market context

Andy Burnham has officially unveiled his first Cabinet, confirming John Healey as Chancellor, Angela Rayner as Housing Secretary, and Ed Miliband as Foreign Secretary, while retaining Shabana Mahmood at Home Office and scrapping the Science Department entirely [1][3]. The 100% crowd-implied probability reflects this immediate confirmation, as the market resolves on appointments made within seven days of Burnham’s Prime Ministerial swearing-in, a window that has now closed with the full list published by ITV News on 21 July 2026 [1].

Historically, UK Cabinet formations following a new Prime Minister’s appointment resolve within 48–72 hours, with probabilities near 100% once the first press briefing occurs, as seen in Starmer’s 2024 reshuffle where key roles were confirmed before midnight [1]. Programmatic traders should treat this as a binary event: once the official announcement timestamp precedes the settlement deadline, the YES leg becomes a certainty, rendering conditional orders or copy-trading bots redundant for this specific outcome.

Watch the official Downing Street press release timestamp and the Monarch’s formal appointment letters, which must be issued between Burnham’s appointment and 11:59 PM UTC on day seven [1]. Recent coverage confirms all listed individuals were appointed or retained within this window, with no pending dependencies; the only catalyst now is the formal publication of the Cabinet list, which ITV and The Standard have already detailed with full in/out breakdowns [1][3].

Sources: 1 · 2 · 3 · 4

Methodology

We track Who will be in the Burnham cabinet? 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

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

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'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.

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.