Will Partido Liberal (PL) hold the most seats as a result of the next Brazilian Senate election?

The PL is priced at 74¢ with a notably asymmetric risk profile, where the "No" side offers a 641.5% implied yield compared to just 71.3% for "Yes," suggesting the market heavily favors PL dominance but prices in substantial tail risk for an upset. With only $7.73 in 24-hour volume against $9M open interest and a 10¢ spread, liquidity is extremely thin relative to position size, creating potential execution challenges and vulnerability to sharp moves. The 191% realized volatility and 2.22 vol ratio indicate elevated uncertainty despite the high baseline probability, and the recent 2¢ price decline over seven days combined with 1.4 info arrivals per hour suggests active repricing as Brazilian political developments emerge ahead of the October 2026 election.

Resolution rules

The next federal Senate election is scheduled to take place in Brazil on October 4, 2026, in which two-thirds of the Senate’s 81 seats will be contested. This market will resolve according to the political party that holds the greatest number of seats in the next Brazilian Senate as a result of the next Brazilian Senate election. All seats, not only the ones contested in the next Brazilian Senate election, will be considered. In the event of a tie between multiple parties for the most seats held, this market will resolve in favor of the party whose listed abbreviation appears first in alphabetical order. This market's resolution will be based solely on the number of seats held by the named party in the Brazilian Senate as a result of the next Brazilian Senate election, not by any federation or coalition it may be a part of. If the result of this election isn't known definitively by June 30, 2027, 11:59 PM ET, the market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., www.tse.jus.br/eleicoes/resultados-eleicoes) or the Brazilian Senate (https://www25.senado.leg.br/web/senadores/em-exercicio/-/e/por-partido).

Indicators

Regime

Trade