TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 26, 1:05 AM EST
Polymarket
Description
The second round of the presidential election is scheduled to take place in Brazil on October 25, 2026. This market will resolve according to the listed candidate who receives the most valid votes in the second round of this election in the municipality of Rio de Janeiro (Rio de Janeiro state). Only valid votes cast at polling places in the municipality of Rio de Janeiro, as reported by the Superior Electoral Court (TSE) for that municipality, will count. Votes cast abroad will not count. Candidates will be primarily ranked by order of valid votes won in the municipality of Rio de Janeiro. 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 highest finishing position after applying this ranking. 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., https://dadosabertos.tse.jus.br/).
Polymarket
The second round of the presidential election is scheduled to take place in Brazil on October 25, 2026. This market will resolve according to the listed candidate who receives the most valid votes in the second round of this election in the municipality of Rio de Janeiro (Rio de Janeiro state). Only valid votes cast at polling places in the municipality of Rio de Janeiro, as reported by the Superior Electoral Court (TSE) for that municipality, will count. Votes cast abroad will not count. Candidates will be primarily ranked by order of valid votes won in the municipality of Rio de Janeiro. 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 highest finishing position after applying this ranking. 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., https://dadosabertos.tse.jus.br/).
Frequently asked questions
On Polymarket, this market is priced through a continuous trading mechanism where users buy and sell shares representing their belief in the probability of each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and express their views, the market price adjusts to reflect the collective wisdom of the crowd. The current price reflects the aggregated expectations of all participants, making it a dynamic and responsive indicator of potential election results.
This market resolves around Oct 26, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on which candidate receives the most votes in the second round of the Brazil presidential election specifically within the city of Rio de Janeiro. The official results released by the relevant electoral authorities will serve as the basis for determining the winning candidate and settling this market. Traders should monitor official sources for the final tally.
Several signals or events could significantly impact this market before Oct 26, 2026. Major developments in the candidates’ campaigns, such as significant policy announcements or endorsements, could shift trader sentiment. Unexpected economic news or political scandals involving either candidate could also cause fluctuations. Additionally, any shifts in public opinion as indicated by late-stage polling data could influence trading activity. Finally, any perceived changes in voter turnout or potential irregularities in the election process could also lead to movement in this market.
