Mike Derry holds a clear lead in the Calgary-Shaw by-election market at 72.5% implied probability, driven by the United Conservative Party's longstanding strength in the southeast Calgary riding and his June 2026 nomination victory over a sitting city councillor. The September 14, 2026, contest follows the resignation of former UCP cabinet minister Rebecca Schulz, with nominations closing August 27. Kyle Campbell, the NDP candidate, sits at 23.5% amid the opposition's efforts to challenge in suburban seats. Lower-priced contenders including Kyle Joseph of the Progressive Tory Party at 5.0% and Liberal leader John Roggeveen at 3.5% reflect limited support in a riding where UCP candidates have historically prevailed. Trader consensus reflects the party's provincial incumbency and recent nomination dynamics ahead of election day.