Will Reform UK win the 2026 Clacton by-election?

The prediction market is currently indicating a high likelihood of Reform UK winning the 2026 Clacton by-election, with a YES price of 0.94 implying a 94% probability. This assessment is informed by known facts such as Reform UK's strong showing in recent local elections and their ability to attract disaffected voters from other parties. The current price reflects the market's collective view that Reform UK has a significant advantage going into the election. Any developments that could impact this outcome, such as changes in voter sentiment or the performance of Reform UK's opponents, would likely cause the YES price to fluctuate. Conversely, news that challenges Reform UK's momentum or strengthens their opponents' positions could lead to a decrease in the YES price. The market will close on September 1, 2027, at 2:00 PM UTC, providing a final opportunity for participants to adjust their predictions before the outcome is known.