UK Political Index

ElectaMeter is a live UK political index that combines three independent data sources into a single composite score for each major party. The Poll Average is the mean vote share across recent opinion polls from firms such as YouGov, Ipsos and More in Common. Betting Odds reflect the implied probability of electoral success from betting markets such as Smarkets. Seat Projections are drawn from electoral modelling (e.g. Electoral Calculus). These three metrics are blended using a weighted formula to produce the Composite Score out of 100 — a single at-a-glance measure of each party’s current standing. Data is updated daily.