According to PolyBeats monitoring, on the prediction market Polymarket, 3 wise investors have placed a $25.6k bet on "Will Starmer resign by June 30, 2026?" with an average buying probability of 70.7%. The current "yes" probability stands at 64.5%.
Olcan has invested $2.1k in this market, with the most relevant category being politics, with a net profit of $15.9k. Out of Olcan's 2356 settled trades in this category, the win rate is 1924/2356 (82%), with 991 trades meeting the criteria of buying below $0.8 and selling above $0.95. Within a similar cost range ($0.601-$0.75), the median historical investment amount is $35, making this investment 58.6 times that median.
0x014c4e7a has invested $8.4k, with the most relevant category being Starmer, resulting in a net profit of $1.0k. Out of 5 settled trades in this category, the win rate is 4/5 (80%), with 0 trades meeting the buying below $0.8 and selling above $0.95 criteria.
0x8c57f67a has invested $15.1k, with the most relevant category being Starmer, resulting in a net profit of $1.6k. Out of 5 settled trades in this category, the win rate is 4/5 (80%), with 2 trades meeting the buying below $0.8 and selling above $0.95 criteria. Within a similar cost range ($0.751-$0.8), the median historical investment amount is $400, making this investment 37.7 times that median.
Per the market rules, if UK Prime Minister Starmer ceases to be Prime Minister for any period of time or announces resignation/removal before the deadline, even if the actual departure date is later, it will still settle as "yes."
The current increase in the "yes" probability is primarily due to Andy Burnham's return to the UK Parliament through the Makerfield by-election. On June 19, Burnham won the seat with 55% of the votes, leading the UK Reform Party candidate Robert Kenyon by 9,231 votes. Previously unable to challenge the Labour leader directly as he was not an MP, Burnham's victory now positions him to enter the leadership contest and potentially succeed as Prime Minister.
Internal pressure is mounting within the Labour Party. The Guardian reports that some loyalists to Starmer in the Cabinet have demanded that he provide a resignation timeline by this weekend, or he may face a forced move within the party. The report also suggests that around 200 Labour MPs are prepared to support Burnham in a challenge if necessary. The Associated Press also states that Burnham's win could trigger a series of events ending Starmer's premiership.
