Next UK by-election called by…?
Polymarket traders put "December 31" at 38.5% on "Next UK by-election called by…?". Down 4.5%p from yesterday. $124 traded in the last 24 hours. There are 2 possible outcomes. It resolves on Jan 1.
Most likely right now
December 31
▼4.539%
PoliticsVol $124Total volume $124Liquidity $719in 4 months (Jan 1)
Current probability
Sep 16 · right column is the 24-hour change (pp)
0%50%100%
December 31
38.5%
▼4.5
October 31
13.0%
▼20.0
Probability over time
December 31
October 31
2026-09-15 ~ 2026-09-16 · y-axis %
