AZ-08 House winner? (2028): Republican party 91% ▲ 91AZ-09 House winner? (2028): Republican party 82% ▲ 82ACC Men's U19 Asia Cup: India Under-19s vs P… 4% ▼ 46Big Bash League, Women: Sydney Sixers vs Syd… 9% ▼ 41Abu Dhabi T10 League: United Tigers vs Arabi… 9% ▼ 41Peak traffic through the Strait of Hormuz? (… 91% ▲ 38College Football Playoff Qualifiers: Ohio St. 14% ▼ 37Major airlines suspend Ben Gurion flights by… 26% ▼ 29Brazilian Grand Prix: Driver Winner: Max Ver… 13% ▼ 23Pete Hegseth impeached by...: March 31, 2027 77% ▲ 21How much will Anthropic raise in its IPO: $7… 19% ▼ 21NCAA Football: 2026 Heisman Award Winner: CJ… 32% ▲ 19Khamenei # posts November 3 - November 10, 2… 85% ▲ 18Heisman Trophy Winner: CJ Carr 34% ▲ 18Traffic through the Strait of Hormuz? (11/2 … 45% ▼ 18How much will Anthropic raise in its IPO: $6… 38% ▲ 17NCAA Football: 2026 Heisman Award Winner: Je… 21% ▼ 17Next leader out of power before 2027: Netany… 43% ▲ 17Test Match: Afghanistan vs Zimbabwe: Draw 83% ▲ 17What will Trump say during 60 Minutes: Ukraine 69% ▼ 16Jonathan Taylor Next Team: Indianapolis 41% ▲ 16Jonathan Taylor Next Team: New York G 31% ▼ 16Heisman Trophy Winner: Jeremiah Smith 23% ▼ 16College Football Playoff Qualifiers: Texas 74% ▲ 16AZ-08 House winner? (2028): Republican party 91% ▲ 91AZ-09 House winner? (2028): Republican party 82% ▲ 82ACC Men's U19 Asia Cup: India Under-19s vs P… 4% ▼ 46Big Bash League, Women: Sydney Sixers vs Syd… 9% ▼ 41Abu Dhabi T10 League: United Tigers vs Arabi… 9% ▼ 41Peak traffic through the Strait of Hormuz? (… 91% ▲ 38College Football Playoff Qualifiers: Ohio St. 14% ▼ 37Major airlines suspend Ben Gurion flights by… 26% ▼ 29Brazilian Grand Prix: Driver Winner: Max Ver… 13% ▼ 23Pete Hegseth impeached by...: March 31, 2027 77% ▲ 21How much will Anthropic raise in its IPO: $7… 19% ▼ 21NCAA Football: 2026 Heisman Award Winner: CJ… 32% ▲ 19Khamenei # posts November 3 - November 10, 2… 85% ▲ 18Heisman Trophy Winner: CJ Carr 34% ▲ 18Traffic through the Strait of Hormuz? (11/2 … 45% ▼ 18How much will Anthropic raise in its IPO: $6… 38% ▲ 17NCAA Football: 2026 Heisman Award Winner: Je… 21% ▼ 17Next leader out of power before 2027: Netany… 43% ▲ 17Test Match: Afghanistan vs Zimbabwe: Draw 83% ▲ 17What will Trump say during 60 Minutes: Ukraine 69% ▼ 16Jonathan Taylor Next Team: Indianapolis 41% ▲ 16Jonathan Taylor Next Team: New York G 31% ▼ 16Heisman Trophy Winner: Jeremiah Smith 23% ▼ 16College Football Playoff Qualifiers: Texas 74% ▲ 16

Senate Combo: Mississippi, South Carolina, Montana Odds

Polymarket traders give Dems MS & SC, Reps MT a 99% chance.

Polymarket Volume $15.7K 24h $0 Liquidity $4.2K Ends Nov 3, 2026 Updated Nov 8, 7:30 AM EST
OutcomeChanceOdds24h
Dems MS & SC, Reps MT
99% -9424 ▲ 1
Reps MS & MT, Dems SC
1% +9424 —

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Price history

0% 25% 50% 75% 100% Oct 20 Nov 8
Dems MS & SC, Reps MTReps MS & MT, Dems SC

Resolution rules

This market will resolve according to the outcome of the United States Senate general elections in Mississippi, South Carolina, and Montana that are currently scheduled for November 3, 2026, inclusive of any potential runoffs. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The Montana race is represented by “Republican” and “Independent” (Ind) options. The “Independent” option refers to a win by a candidate running as an independent in the Montana Senate election. For purposes of this market, Seth Bodnar will be considered to be an Independent regardless of any affiliation that he may have with any party. If the results of one of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins the Mississippi or South Carolina election, or the Democratic nominee or a third-party candidate wins the Montana election, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins all races. 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 the relevant 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.

Source: Polymarket. The venue's rules are final.

FAQ

Who is favored in Senate Combo: Mississippi, South Carolina, Montana?

As of Nov 8, 7:30 AM EST, traders on Polymarket price Dems MS & SC, Reps MT at 99%, about -9424 in American odds. Prices move with every trade.

How are prediction market odds calculated?

Each contract pays $1 if the outcome happens and $0 if it doesn't, so its price is the market's implied probability: a 60¢ contract means roughly a 60% chance. We show the last trade, or the midpoint between the best bid and ask when the order book is tight.

When does this market close?

Polymarket lists Nov 3, 2026 as the end date. It can close earlier if the outcome is decided.

Where can I trade on Senate Combo: Mississippi, South Carolina, Montana?

This market trades on Polymarket. Availability depends on where you live: Kalshi is a CFTC-regulated US exchange, while Polymarket's international site isn't available to US users (Polymarket US is a separate app). You must be 18 or older.