Who will be in the Burnham cabinet?

Platform comparison

Market context

Andy Burnham has already unveiled his first Cabinet, confirming John Healey as Chancellor, Ed Miliband as Foreign Secretary, and Wes Streeting as Defence Secretary, while retaining Shabana Mahmood as Home Secretary and appointing Louise Haigh as First Secretary of State. The market’s 100% implied probability reflects this completed reality: the listed individual is confirmed as a minister, so the “Yes” outcome is settled fact rather than a speculative forecast.

Historically, UK Cabinet formations resolve within days of a Prime Minister’s appointment, with no major ministerial vacancies persisting beyond the first week unless a resignation occurs mid-announcement. Burnham’s reshuffle followed this pattern, appointing all key roles by 20 July 2026 and removing only Starmer loyalists like Hilary Benn and Jo Stevens, leaving no ambiguity about who holds office. Comparable cases, such as Starmer’s 2024 Cabinet, show similar speed and clarity, reinforcing that post-appointment markets on Cabinet membership are effectively binary once the list is published.

Traders should watch for any late resignations or reassignments before the 2026 settlement window closes, though none are currently anticipated. The New Statesman’s live blog from 21 July 2026 confirms the full list, with no pending announcements expected [1]. The only catalysts would be unexpected departures, such as a minister stepping down due to scandal or health, but Westminster watchers see the Cabinet as stable. With the consensus locked at 100% and the list final, there is no value spot or contrarian angle—this is a resolved event, not a prediction.

Sources: 1 · 2 · 3 · 4 · 5

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

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 Who Will Win. 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.

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.