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How many UK Prime Ministers by end of 2027?: live odds and probabilities

The market favorite is 2 at 89.5%, ahead of 3 at 10.5%. $244K traded across 3 outcomes.

Updated 2026-11-06 03:05 UTC · Source: Polymarket · 18+ · Market prices, not predictions or advice

Favorite

89.5%
2 · Trade →

24h move

0.0
pts · 7d 0.0

Volume

$244K
24h $62 · liquidity $145K

Closes

January 1, 2028
421 days left

UKLabourAndy BurnhamKeir StarmerUnited Kingdom

All outcomes

OutcomeProbability24h7dVolumeSpread
289.5% 0.00.0$160K1.0¢
310.5% 0.00.0$62K1.0¢
4+0.3% 0.00.0$18K0.2¢

Prices are the Polymarket mid or last trade at 2026-11-06 03:05 UTC. A price of 64¢ implies roughly a 64% chance. Prices include spread and are not forecasts by BetG8.

📱 Compare how the same event is priced across venues on Polymtrade.Referral link. 18+.

Price history

0%25%50%75%100%07-0709-0611-06
234+

Market rules and resolution

This market will resolve to the number of unique individuals who officially hold the office of Prime Minister of the United Kingdom at any point between market creation and December 31, 2027, 11:59 PM ET. This market will resolve based on the number of unique individuals to hold the position. For example, if an individual is appointed twice within the specified timeframe, they will only count once for resolution. To count for resolution, an individual must have been officially appointed by the United Kingdom Monarch. An individual’s time of appointment will have no bearing on this market so long as the individual officially serves as Prime Minister within the specified timeframe. Any interim or caretaker Prime Minister will not count toward the resolution of this market For clarity, Keir Starmer will count as one Prime Minister for the purposes of this market. The primary resolution source for this market will be official information from the Government of the United Kingdom; however, a consensus of credible reporting may also be used.

How to read this market

Each share pays $1 if its outcome happens. Buying 2 at 90% risks 90¢ to win 10¢. Prices move with news and order flow, and thin markets can swing on small trades, so check volume and spread before treating a number as the crowd's view. See our guides to implied probability and how markets resolve.

Frequently asked questions

Who is favored in "How many UK Prime Ministers by end of 2027?"?
As of November 6, 2026, 2 is the favorite at 89.5%, followed by 3 at 10.5%.
When does this market resolve?
The market is scheduled to close on January 1, 2028. It resolves under Polymarket's rules once the outcome is known, which can be earlier or later than the listed date.
How much has been traded?
$244K in total and $62 in the last 24 hours, with about $145K of resting liquidity.
Can I trade this market?
Polymarket restricts access by location; the US version (Polymarket US) and the offshore site have different rules and fee schedules. Check availability in your jurisdiction. BetG8 earns a referral fee from the Polymtrade links on this page.

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Data: Polymarket Gamma and CLOB APIs, fetched by BetG8 at the time shown above. Venues may restrict access by location. 18+ only.