How many UK parliamentary by-elections in 2026?

Polymarket prediction market· Same prices, rules and result

Polymarket prices · as of 08:35 UTCLast trade · 26m agoCloses Jan 1, 2027Polymarket 24h vol $1.4K

Polymarket chance · top 4 of 5 options

6 68%7 26%8 4%10+ 1%

5 options · in level order

Option24hAI analystsTiers 1–2Buy

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726%———

84%———

91%———

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5 open levels, in level order.

Rules Polymarket's rules · the same for all 5 options

This market will resolve according to the total number of UK parliamentary by-elections held in 2026. Qualifying by-elections must be elections to the UK House of Commons for a vacant parliamentary seat, with polling day scheduled and held within the 2026 calendar year. The resolution source for this market will be a consensus of credible reporting. In case of ambiguity, this market will resolve solely based on official information from the UK Parliament (https://www.parliament.uk/).Show rulesHide rules

Resolution criteria: This market will resolve according to the total number of UK parliamentary by-elections held in 2026. Qualifying by-elections must be elections to the UK House of Commons for a vacant parliamentary seat, with polling day scheduled and held within the 2026 calendar year. The resolution source for this market will be a consensus of credible reporting. In case of ambiguity, this market will resolve solely based on official information from the UK Parliament (https://www.parliament.uk/).