TOTAL VOLUME:
$154.6b
24H VOL:
$333,432,169
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,971,286,090
419,492
Markets across
40,634
events
MATCHED EVENTS:
4,654
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 5, 8:16 PM EST
Polymarket
Description
The Brazilian Federal Senate election for São Paulo is scheduled to take place on October 4, 2026. This market will resolve according to the candidate who wins the second-most valid votes of any candidate at the specified election. Candidates will be primarily ranked by order of valid votes won. If two or more candidates are tied for any position, ties will be broken by alphabetical order of the candidates’ listed full names as they appear in this market. This market will resolve to the candidate that occupies the second-highest finishing position after applying this ranking. If the result of this election isn't definitively known 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).
Polymarket
The Brazilian Federal Senate election for São Paulo is scheduled to take place on October 4, 2026. This market will resolve according to the candidate who wins the second-most valid votes of any candidate at the specified election. Candidates will be primarily ranked by order of valid votes won. If two or more candidates are tied for any position, ties will be broken by alphabetical order of the candidates’ listed full names as they appear in this market. This market will resolve to the candidate that occupies the second-highest finishing position after applying this ranking. If the result of this election isn't definitively known 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).
Frequently asked questions
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, traders actively set the odds for this market through buying and selling contracts. The current implied probability shows who is favored to finish second in the São Paulo Senate race, with prices adjusting based on trading volume and new information. As Oct 5, 2026 nears, events like debates, economic shifts, or endorsements can cause rapid price swings. The market’s liquidity, measured by volume of $136,568 and 24-hour volume of $883, allows traders to react quickly to breaking news, making the price a dynamic indicator of shifting expectations.
This market resolves around Oct 5, 2026, with the outcome confirmed once the election results are officially declared and verifiable from credible public reporting. The second-place finisher will be determined by the certified vote tallies from the Brazilian electoral authority. Until then, traders can continue to speculate, with the market price adjusting based on emerging data and shifting expectations leading up to the final count.
Several signals could shift this market before resolution, including major polling updates, candidate debates, endorsements, or controversies. Economic announcements, regional voting trends, and campaign performance in key districts may also influence trader sentiment. As the election approaches, any significant change in voter sentiment or last-minute developments could cause rapid price adjustments, reflecting updated expectations for who will finish second in the São Paulo Senate race.
