Following Aleksandar Vučić’s September 27 resignation to seek the prime minister role, Serbia’s constitution requires a presidential election within 90 days, establishing a firm deadline of December 26–27, 2026. Acting President Ana Brnabić has publicly committed to calling the vote by that cutoff. The October 25 parliamentary election, won decisively by the Student List amid record turnout, shifted institutional control and removed prior incentives for delay. Traders therefore focus on the narrow remaining window, any procedural announcements from the National Assembly or electoral commission, and the absence of legal obstacles to an early call. Historical patterns of Serbian snap elections and the current majority’s stated preference for swift institutional transition further anchor near-term probability assessments.