Sweden's Social Democrats (S) hover near 31% in recent opinion polls ahead of the September 13 parliamentary election, with aggregates such as PolitPro showing 31.1% and individual surveys from Novus and Demoskop ranging from 30.2% to 32.6% in July and August. This positioning creates the narrow balance reflected in trader pricing, as the party leads the opposition Red-Green bloc that holds a modest overall advantage over the incumbent Tidö government parties. Support for S has fluctuated modestly in recent months amid voter shifts involving the Left Party and Moderates, while bloc margins have narrowed slightly during the summer. Key variables that could shift the result include final-week polling movements, turnout patterns, and any late developments on economic conditions, healthcare priorities, or crime policy that affect undecided voters.