TOTAL VOLUME:

$154.4b

24H VOL:

$235,918,089

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,884,820,873

413,109

Markets across

40,428

events

MATCHED EVENTS:

4,364

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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Elections
Closer Senate Race: Michigan or New Hampshire?
kalshi

Closer Senate Race: Michigan or New Hampshire?

Oct 1, 2026, 3:00 PM EST - Nov 10, 2026, 10:00 AM EST
Total volume:
$15,307
Volume 24h:
$1
99%
Liquidity:
N/AN/A
Open interest:
$7,092
0.02%

Michigan US Senate

 - Kalshi

Michigan US Senate - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Nov 10, 2026

Time left: 07d:16h:31m

Will Michigan US Senate have the smallest margin of victory in the November 3, 2026 general elections for Michigan US Senate and New Hampshire US Senate?

77%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 82¢ buys you 122 shares | Odds: 77% Total Payout: $122 | Net Profit: $22 Multiplier: 1.22x | ROI: 22% APY not meaningful 7 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Michigan US Senate

Trade
77%
6%
Yes 82¢No 23¢
5¢
N/A
$7,104
0.02%
0.28%
$2,981
1w 16h
Active
kalshi

New Hampshire US Senate

23%
Yes 22¢No 84¢
6¢
N/A
$8,204
0%
3%
$4,111
1w 16h
Active
Total markets: 2

Description

This event determines whether the Michigan or New Hampshire Senate race had the tighter contest in the November 2026 elections. The outcome is decided by comparing the vote gaps between the leading candidates in each state.

Kalshi

The market resolves based on which of the two Senate races—Michigan or New Hampshire—has the smallest margin of victory as of November 10, 2026. The margin of victory is defined as the absolute difference in vote share percentage between the first and second-place finishers, calculated using total votes cast as the denominator. If official results are unavailable by the deadline, preliminary results from source agencies with at least 95% of the expected vote will be used. In the event of a tie in margins between the two races, each tied option resolves to Yes, with the payout divided equally among the tied options.

Frequently asked questions

On Kalshi, the dashboard for the Michigan and New Hampshire Senate races tracks the evolving probabilities of different outcomes as determined by traders. You’ll find the current odds reflecting where the crowd believes the race will land, along with a price history showing how those probabilities have shifted over time. The dashboard also displays the 24-hour trading volume, currently at $1, and the total volume traded to date, which is $15,307. This provides a real-time view of market sentiment surrounding these closely watched Senate contests.

Currently, prediction market odds often offer a different perspective than traditional analyst forecasts. While analysts rely on polling data, fundraising numbers, and qualitative assessments, this market aggregates the wisdom of the crowd, reflecting a broader range of information and potential scenarios. Discrepancies can arise from differing interpretations of the same data or the inclusion of factors not typically considered by analysts. It’s common to see this market adjust rapidly to new information, potentially leading to divergence from initial expert predictions as the election cycle progresses.

On Kalshi, this market is priced using a continuous double auction, meaning traders buy and sell contracts representing different outcomes. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. As more traders participate, the prices converge to reflect a collective assessment. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market depth, or the number of buy and sell orders at various price points, indicates the level of agreement or disagreement among traders about the likelihood of each outcome in the Michigan and New Hampshire Senate races.

This market resolves around Nov 10, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on which party controls each Senate seat – Michigan and New Hampshire – following the November 2026 election. The outcome will be determined by official election results as reported by relevant election authorities and verified against credible public sources. The market will settle to 100 for the winning party in each race, and 0 for the losing party.

Several factors could significantly impact this market. Major economic shifts, unexpected candidate endorsements, or significant changes in polling data could all cause price fluctuations. Key events like primary elections, debates, and campaign finance reports will also likely influence trader sentiment. Furthermore, any unforeseen events – such as a major scandal or a shift in national political dynamics – could lead to substantial movements in the odds. Monitoring these signals and events will be crucial for understanding how this market evolves leading up to Nov 10, 2026.