Will Labour win the Makerfield by-election on 18 June 2026?

Market resolves to YES if the Labour Party candidate is declared the winner of the UK parliamentary by-election in the Makerfield constituency on 18 June 2026. The by-election was called in May 2026 amid Labour leadership tensions. Resolution is based on the official result declared by the returning officer. A hung recount leading to a court challenge resolves based on the final certified result. Source: UK Electoral Commission / official constituency declaration.