Starmer out by 2025?

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Market context

Keir Starmer, who became Prime Minister following Labour's July 2024 general election victory, would need to leave office before the end of 2025 for this market to resolve affirmatively. The resolution triggers on announcement alone, not the effective date of departure, meaning any public statement of resignation or removal—whether immediate or scheduled for later—settles the market to Yes. The current zero probability reflects the baseline stability of a newly elected government with a substantial parliamentary majority and no immediate constitutional crisis.

British Prime Ministers typically face removal through three mechanisms: voluntary resignation, party-initiated leadership change, or electoral defeat. Voluntary departures within a single term remain uncommon; Tony Blair served a decade, Gordon Brown three years, and David Cameron four years before stepping down. Forced exits via backbench revolt or cabinet pressure occur more frequently but require sustained parliamentary dissent—Margaret Thatcher faced this in 1990 after months of mounting pressure. The most recent involuntary transition was Liz Truss's 49-day tenure in 2022, though she announced resignation rather than facing formal removal.

Traders monitoring this market should track Labour backbench sentiment, particularly around economic policy announcements and public spending decisions scheduled throughout 2025. The Spring Budget (March), Autumn Statement (October), and any major legislative defeats would serve as early warning signals. Health crises, criminal charges, or severe personal scandals represent lower-probability but high-impact catalysts. Programmatically, conditional orders tied to parliamentary voting records or specific policy announcements could automate position adjustments, though the zero current probability suggests the market may be pricing in near-certainty of Starmer's continuity through year-end.

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.