Starmer out by 2025?

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Market context

Keir Starmer, who became Prime Minister in July 2024 following Labour's general election victory, could be forced from office or announce his departure before the year's end. This market captures the probability of any interruption to his tenure between February and December 2025, with immediate resolution if resignation or removal is announced beforehand, regardless of implementation timing.

UK Prime Ministers face removal through three principal mechanisms: loss of parliamentary confidence (requiring either backbench revolt or formal no-confidence vote), personal resignation, or incapacity. Since 1990, only Liz Truss departed within a single calendar year, resigning after 49 days in September 2022 following market turmoil and cabinet departures. Boris Johnson faced sustained backbench pressure throughout 2022 before resigning in July; Theresa May survived two confidence votes before announcing her departure in May 2019. The 0% implied probability reflects Starmer's substantial parliamentary majority (412 seats) and absence of immediate destabilising factors comparable to those preceding recent departures.

Traders monitoring this market should track Labour backbench rebellions, particularly on contentious legislation around welfare, public sector pay, or devolution. The Budget implementation in spring 2025 and any major policy reversals—especially on energy policy or immigration—represent potential flashpoints. Health crises or personal scandals affecting Starmer directly would constitute the most direct catalyst. Programmatically, conditional orders tied to specific parliamentary votes or resignation announcements would be more efficient than static positions, given the low baseline probability and event-driven nature of the resolution criteria.

Methodology

This page reviews Starmer out by 2025? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket App UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Is this market available outside the US?

Polymarket App UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket App UK triggers a quick verification flow that finishes in 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.