The Berlin Election 2026 decides which party wins the most seats in the Abgeordnetenhaus, Germany's capital-city parliament, and the board has been reordered since spring. Die Linke now trades as the front-runner ahead of the CDU, which swapped lead candidates in July 2026. Eight parties are priced across Kalshi and Polymarket on roughly $3.3M in cumulative volume, and the vote is September 20, 2026. The live board above ranks every price.
The Berlin Election 2026 is a Land election: voters in the German capital choose the members of the Abgeordnetenhaus, the city-state parliament that governs Berlin like a federal state. The chamber runs to at least 130 seats and 66 are needed for a majority. This market does not ask who forms the next governing coalition, a separate question priced on the next Governing Mayor of Berlin market. It asks one cleaner thing, which single party finishes first in seats. Eight parties are priced across Kalshi and Polymarket on roughly $3.3M in cumulative volume, and the top of that board looks nothing like it did in the spring.
Die Linke, The Left, is the chalk now. The party finished fourth in the February 2023 repeat election at 12.2% and 22 seats, and it climbed to the front of the Berlin field through 2026 on the housing issue. The Infratest dimap BerlinTrend conducted June 25-29, 2026 put Die Linke first at 20%, with 30% of respondents naming rents and housing as the most important topic in the city and Die Linke leading every party on problem-solving trust at 18% against the CDU's 11%. Elif Eralp is its lead candidate.
The board is more committed to that read than the polls are. Two August 2026 surveys, one fielded August 7-13 and an INSA poll fielded August 15-16, both put the CDU narrowly back in front at 20% to Die Linke's 19%, inside the margin of error. The market still prices Die Linke as the clear favorite, and Kalshi and Polymarket agree on that line to the cent, the only party on the board where the two platforms show no gap at all. Traders are pricing the trend and the CDU's leadership problem rather than the newest poll.
The CDU won the 2023 repeat election at 28.2% and 52 seats and has governed Berlin in a grand coalition with the SPD ever since. It now polls about eight points below that result. The proximate cause is a leadership change. Governing Mayor Kai Wegner stepped down as the CDU's lead candidate on July 10, 2026 after sustained criticism of his handling of the January 3, 2026 attack on the city's power grid, and Finance Senator Stefan Evers took the top spot. Wegner stayed on as a constituency candidate in Spandau and ruled out serving in the next government.
That is the largest structural change on this board since it opened, and it is what moved the CDU from front-runner to chaser. A first-place CDU finish still would not lock the mayoralty, because Berlin's coalition arithmetic has historically favored a left-leaning bloc, but the seat-count question this contract resolves on is the one an incumbent governing party has the clearest path to win. The incumbent CDU-SPD coalition polls short of a majority.
Below the top two the polls are far tighter than the board. The August 7-13, 2026 survey had the AfD at 17%, the Grüne at 16% and the SPD at 15%, all within five points of the CDU's 20%, and the market still prices each of them well behind the leading pair. That gap is the contract structure doing the work. Finishing first in seats out of a five-party scrum is a much harder ask than polling third.
The AfD line is the most traded single contract on the board, carrying roughly $2.4M of the $3.3M in cumulative volume, which reflects national interest in the party's eastern momentum more than a Berlin ceiling that has historically lagged its results in the eastern states. Kristin Brinker leads its list. The Grüne, running Werner Graf and Bettina Jarasch, took 18.4% and 34 seats in 2023 and are the party Die Linke has taken the most ground from. The SPD matched that 18.4% and 34 seats in 2023 and now runs Steffen Krach, and it sits at the bottom of the five-party cluster, a striking fall for a party that held the mayoralty for two decades. Below them the BSW polls at 3%, under the five-point threshold, while the FDP and Freie Wähler are long shots that need a polling shock to reach first place. The Freie Wähler line is priced on Polymarket only.
The Abgeordnetenhaus election is scheduled for September 20, 2026, and the market resolves to the party or coalition that wins the greatest number of seats in that vote. The source of truth is the official result reported by the Berlin election office, the Landeswahlleiter Berlin. If two parties tie for the most seats, the contract resolves in favor of the one whose abbreviation comes first alphabetically. If the vote does not occur by December 31, 2026, the market resolves to Other.
Germany's state calendar and its federal politics both trade alongside this board. The Saxony-Anhalt 2026 election odds run the same most-seats structure in an eastern state where the AfD question is central, and the German federal coalition break market prices the national CDU/CSU-SPD partnership that Berlin's grand coalition mirrors. For a different European frame, the Sweden 2026 parliamentary odds resolve on a similar most-seats basis on September 13, 2026, one week before Berlin votes. Browse the full slate on the politics prediction markets hub.
Resolves to the political party or coalition that wins the greatest number of seats in the Abgeordnetenhaus of Berlin in the state election scheduled for September 20, 2026. The source of truth is the official result reported by the Berlin election office, the Landeswahlleiter Berlin. Each party contract pays $1 per share if that party finishes first in seats; all other party contracts resolve to $0. In the event of a tie for the most seats, the market resolves in favor of the party or coalition whose listed abbreviation comes first in alphabetical order. If voting for the Abgeordnetenhaus does not occur by December 31, 2026, the market resolves to Other.
As of August 17, 2026, Die Linke leads the board at 41c, the CDU is second at 34c, the AfD is at 16.5c, the Grüne at 9.5c and the SPD at 5.5c. Kalshi and Polymarket price Die Linke and the CDU identically, with the platform gaps sitting on the AfD, Grüne and SPD lines.
It resolves after the Abgeordnetenhaus election scheduled for September 20, 2026, based on the official result from the Landeswahlleiter Berlin. If the vote does not occur by December 31, 2026, the market resolves to Other.
The market trades on both Kalshi and Polymarket, with roughly $3.3M in cumulative volume across the two platforms. The AfD contract alone accounts for about $2.4M of that turnover, the heaviest single line on the board.
Die Linke, led by Elif Eralp, is the favorite to win the most seats as of August 17, 2026, having displaced the CDU at the top of the board over the summer. Die Linke finished fourth in 2023 at 12.2% and 22 seats, so this is a four-place climb.
Watch the Berlin polling trend into September, where the CDU and Die Linke have traded the lead twice since June 2026, and whether Stefan Evers steadies the CDU after replacing Kai Wegner on July 10, 2026. The September 20, 2026 vote is the resolution trigger.