Following Rumen Radev’s January resignation from the presidency and Progressive Bulgaria’s April parliamentary landslide that delivered an outright majority, incumbent Iliana Iotova enters the autumn 2026 contest as the clear frontrunner. Her support from the Bulgarian Socialist Party and voters aligned with the ruling coalition provides a structural advantage in a fragmented field where no single challenger has consolidated opposition backing. Nikolai Denkov and Vassil Terziev trail as the strongest alternatives, drawing primarily from pro-European and liberal-leaning voters, while Boyko Borissov and other listed contenders remain marginal. The absence of major new developments since the parliamentary vote has kept probabilities stable, with the market reflecting broad trader consensus on Iotova’s incumbency edge and coalition momentum ahead of the November balloting.