Sustained polling leads position the Swedish Social Democratic Party as the clear frontrunner for the largest share of Riksdag seats in the September 13, 2026, election under proportional representation. Recent surveys from Ipsos, Novus, and Demoskop show S averaging 32-33 percent, maintaining a 13-point edge over the Sweden Democrats and outpacing the Moderate Party, with the broader red-green bloc projected near 190 seats against roughly 155-159 for the Tidö government partners. Trader consensus reflects this stability amid consistent voter trends since the 2022 results, reinforced by S's historical role as Sweden's largest party. Late shifts remain possible through scandals affecting leader Magdalena Andersson, renewed right-wing momentum on immigration or economic issues, or polling misses within historical margins of error.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLiberals and Sweden Democrats announce removal of “red‑line” restrictions on SD coalition participation, signalling a possible reunification of the Tidö bloc and causing a sharp
Swedish Social Democratic Party (S) dips to 90%3%
Liberals and Sweden Democrats announce removal of “red‑line” restrictions on SD coalition participation, signalling a possible reunification of the Tidö bloc and causing a sharp drop in S’s












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