How many UK Prime Ministers by end of 2027?

Traders currently price "2" at 86% for "How many UK Prime Ministers by end of 2027?". Full distribution: 2 86%, 3 14%, 4+ 2%, 1 0%. The market has traded $115K in total volume and resolves Dec 31, 2027. Traders heavily favor exactly two UK prime ministers by the end of 2027 at 85.5% because Keir Starmer's resignation amid Labour's May 2026 local election losses and internal discontent has already produced a leadership transition to Andy Burnham. This outcome reflects broad consensus that Burnham can maintain stability through the remainder of the parliament, with the next general election still likely after 2027. Recent polling and party dynamics show limited immediate pressure on the new leader, though economic headwinds and potential by-election results remain key variables that could trigger further shifts. The slim 14% chance for three prime ministers accounts for scenarios involving an early contest or unexpected resignation, while four or more stays negligible given the short remaining timeframe and structural barriers to rapid successive changes.

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