How many UK parliamentary by-elections in 2026?
As of 11:42 UTC on 18 Oct 2026, “6” leads “How many UK parliamentary by-elections in 2026?” on Polymarket at 71%, followed by “7” at 30% and “8” at 1% (+1pp in 24h), out of 6 outcomes. The event has $1.9k in Polymarket-reported 24-hour volume. pdata.world compares it with 21 related events on Kalshi, Polymarket and Manifold.
