Sweden's September 2026 election left the centre-left bloc with a narrow 176-173 parliamentary majority, yet coalition talks stalled over the Left Party's demand for cabinet posts and the Centre Party's refusal to join any government including it. Magdalena Andersson's failed investiture vote on October 15, rejected 248-99, shifted the Speaker's mandate next to caretaker Prime Minister Ulf Kristersson of the Moderates. Traders assign Andersson the highest implied probability because her Social Democrats remain the largest party and the only bloc with a seat majority, while Kristersson's lower odds reflect the right-wing bloc's electoral defeat. Further rounds of negotiations or additional votes could still alter outcomes before any snap election trigger.