The broad distribution of probabilities across outcomes from 48 to 52 Republican Senate seats reflects substantial uncertainty in the upcoming midterm cycle. Key drivers include the typical midterm penalty for the president's party, candidate recruitment and primary dynamics in competitive states, economic conditions, and voter turnout patterns among key demographics. Senate map specifics, such as the number of seats in battleground states and any open races due to retirements, add further variability. With no dominant frontrunner, trader sentiment hinges on evolving national polling trends and state-level developments that could consolidate support around a narrower range of results closer to election day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$2,738,462 Vol.
$2,738,462 Vol.
Nov 3, 2026
≤47
24%
48
12%
49
14%
50
14%
51
14%
52
12%
53
4%
54
2%
55
1%
56
1%
57+
1%
$2,738,462 Vol.
$2,738,462 Vol.
Nov 3, 2026
≤47
$167,938 Vol.
24%
48
$39,907 Vol.
12%
49
$50,503 Vol.
14%
50
$115,799 Vol.
14%
51
$220,821 Vol.
14%
52
$586,147 Vol.
12%
53
$69,259 Vol.
4%
54
$762,912 Vol.
2%
55
$430,052 Vol.
1%
56
$182,960 Vol.
1%
57+
$112,165 Vol.
1%
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.The broad distribution of probabilities across outcomes from 48 to 52 Republican Senate seats reflects substantial uncertainty in the upcoming midterm cycle. Key drivers include the typical midterm penalty for the president's party, candidate recruitment and primary dynamics in competitive states, economic conditions, and voter turnout patterns among key demographics. Senate map specifics, such as the number of seats in battleground states and any open races due to retirements, add further variability. With no dominant frontrunner, trader sentiment hinges on evolving national polling trends and state-level developments that could consolidate support around a narrower range of results closer to election day.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Market Opened: Dec 18, 2025, 8:55 PM ET
Volume
$2,738,462End Date
Nov 3, 2026Market Opened
Dec 18, 2025, 8:55 PM ETResolver
0x2F5e3684c...The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.The broad distribution of probabilities across outcomes from 48 to 52 Republican Senate seats reflects substantial uncertainty in the upcoming midterm cycle. Key drivers include the typical midterm penalty for the president's party, candidate recruitment and primary dynamics in competitive states, economic conditions, and voter turnout patterns among key demographics. Senate map specifics, such as the number of seats in battleground states and any open races due to retirements, add further variability. With no dominant frontrunner, trader sentiment hinges on evolving national polling trends and state-level developments that could consolidate support around a narrower range of results closer to election day.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Volume
$2,738,462End Date
Nov 3, 2026Market Opened
Dec 18, 2025, 8:55 PM ETResolver
0x2F5e3684c...The broad distribution of probabilities across outcomes from 48 to 52 Republican Senate seats reflects substantial uncertainty in the upcoming midterm cycle. Key drivers include the typical midterm penalty for the president's party, candidate recruitment and primary dynamics in competitive states, economic conditions, and voter turnout patterns among key demographics. Senate map specifics, such as the number of seats in battleground states and any open races due to retirements, add further variability. With no dominant frontrunner, trader sentiment hinges on evolving national polling trends and state-level developments that could consolidate support around a narrower range of results closer to election day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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