Market snapshot: Oct 19, 2026, 3:00 PM UTC. Prices may have changed since this snapshot.

GroupKALSHIPOLYMARKETCross-Platform

Event GroupKALSHIPOLYMARKETCross-Platform2 EventsElections

Closer Senate Race: Minnesota or Mississippi?

Reported volume

PM $2.4K · K 6.1K contracts

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Closer Senate Race: Minnesota or Mississippi?

Vol

PM $2.4K · K 6.1K contracts

Events

Markets

Polymarket Kalshi

Provider overview

polymarket

$2.4K

Reported lifetime volume

kalshi

6.1K contracts

Reported lifetime volume

Reviewed equivalent pairs

No eligible price comparison

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Price ChartContract price history

2 markets tracked

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Saved prices are comparisons, not executable quotes. A price difference does not establish arbitrage. Check both contracts, live order prices, fees and available size.

Will Mississippi US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?

No data available

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No currently reviewed equivalent pairs with usable prices. You can inspect related contracts, but their prices do not measure the same outcome.

Market	Polymarket	Kalshi	Diff

Single-Platform Markets(1)

Rules & Resolution

Differs

Saved matching review

Related contracts: 1 pair

A saved event match does not establish identical settlement. Pair reviews appear with each price comparison.

Review notes

Saved notes may describe earlier contract terms. Use the pair status above and current provider rules.

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

Automated review classifications: 0 equivalent, 1 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Closer Senate Race: Minnesota or Mississippi?". Listed deadlines for assessed markets (UTC): 2026-11-10T15:00:00.000Z. Polymarket event: "Closer Senate Race: Minnesota or Mississippi?". Listed deadlines for assessed markets (UTC): 2026-11-04T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $2.4K · K 6.1K contracts

Reported volume · provider units

Saved contracts

Reviewed equivalent pairs

Source snapshot: Oct 19, 2026, 3:00 PM UTC

About This Event

On Nov 3, 2026 If X has the smallest margin of victory among all elections in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate as of Nov 10, 2026, then the market resolves to Yes. The margin of victory is calculated as the absolute difference in vote share, expressed as percentage, between first and second place finishers, using total votes cast as the denominator. If official results aren't available by the deadline, preliminary results from Source Agencies with at least 95% of expected vote are used. If multiple elections have identical margins and relevant options are listed, each tied option resolves to Yes at $1.00 divided by the number of tied options. This market will close and expire early if all election results are certified.

AI-generated analysis based on market data. Not financial advice.

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Event: Closer Senate Race: Minnesota or Mississippi?
Source snapshot: Oct 19, 2026, 3:00 PM UTC
Reported event volume (provider units): PM $2.4K · K 6.1K contracts
Coverage: 3 of 3 saved contracts included.
Prices are saved observations, not executable quotes. Listed close dates do not promise settlement or payout time.

Contract: Will Minnesota US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?
Provider: kalshi; ID: kalshi-KXCLOSERMNMSSEN-26NOV10-MNSEN; status: active
Source: https://kalshi.com/markets/kxclosermnmssen-26nov10
Observed: Oct 19, 2026, 3:00 PM UTC
Listed close: Nov 10, 2026, 3:00 PM UTC
Reported volume: 5.1K contracts
Outcome Yes: 61.5%; 24h change unavailable
Outcome No: 38.5%; 24h change unavailable
Saved rules: If Minnesota US Senate has the smallest margin of victory among all elections in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate as of Nov 10, 2026, then the market resolves to Yes. Secondary rules: The margin of victory is calculated as the absolute difference in vote share (expressed as percentage) between first and second place finishers, using total votes cast as the denominator. If official results aren't available by the deadline, preliminary results from Source Agencies with at least 95% of expected vote are used. If multiple elections have identical margins and relevant options are listed, each tied option resolves to Yes at $1.00 divided by the number of tied options. Early close condition: This market will close and expire early if all election results are certified.

Contract: Closer Senate Race: Minnesota or Mississippi?
Provider: polymarket; ID: polymarket-5091426; status: active
Source: https://polymarket.com/event/closer-senate-race-minnesota-or-mississippi
Observed: Oct 19, 2026, 3:00 PM UTC
Listed close: Nov 4, 2026, 4:59 AM UTC
Reported volume: $2.4K
Outcome Minnesota: 44.5%; 24h change unavailable
Outcome Mississippi: 55.5%; 24h change unavailable
Saved rules excerpt (truncated): The 2026 midterm elections are scheduled to be held on November 3, 2026.

This market will resolve to "Minnesota" if the regularly-scheduled US Senate race in Minnesota has a smaller unrounded margin of victory than that of the Mississippi Senate election.

This market will resolve to "Mississippi" if the regularly-scheduled US Senate race in Mississippi has a smaller unrounded margin of victory than that of the Minnesota Senate election.

If both states have the same margin of victory, this market will resolve 50-50.

For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.

For elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. 

In the event that a relevant margin of victory cannot be determined by March 31, 2027, that state's

Contract: Will Mississippi US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?
Provider: kalshi; ID: kalshi-KXCLOSERMNMSSEN-26NOV10-MSSEN; status: active
Source: https://kalshi.com/markets/kxclosermnmssen-26nov10
Observed: Oct 19, 2026, 3:00 PM UTC
Listed close: Nov 10, 2026, 3:00 PM UTC
Reported volume: 1.0K contracts
Outcome Yes: 38.0%; 24h change unavailable
Outcome No: 62.0%; 24h change unavailable
Saved rules: If Mississippi US Senate has the smallest margin of victory among all elections in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate as of Nov 10, 2026, then the market resolves to Yes. Secondary rules: The margin of victory is calculated as the absolute difference in vote share (expressed as percentage) between first and second place finishers, using total votes cast as the denominator. If official results aren't available by the deadline, preliminary results from Source Agencies with at least 95% of expected vote are used. If multiple elections have identical margins and relevant options are listed, each tied option resolves to Yes at $1.00 divided by the number of tied options. Early close condition: This market will close and expire early if all election results are certified.

Saved cross-platform review:
No exact pair with two valid binary Yes prices is available for comparison.

Explain the named outcomes, material rule/deadline differences, and evidence limits. Keep Polymarket dollar volume separate from Kalshi contract counts. Do not average unrelated contracts, infer missing prices or changes, or describe unreviewed/related pairs as equivalent. Distinguish listed prices from executable bid/ask prices, fees and available size. Do not invent current news, confidence scores or settlement guarantees. Cite the provided source links and identify what further evidence would be needed.

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AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

KALSHIElections

Closer Senate Race: Minnesota or Mississippi?

Volume$6.13K

Markets2

POLYMARKETPolitics

Closer Senate Race: Minnesota or Mississippi?

The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve to "Minnesota" if the regularly-scheduled US Senate race in Minnesota has a smaller unrounded margin of victory than that of the Mississippi Senate election. This market will resolve to "Mississippi" if the regularly-scheduled US Senate race in Mississippi has a smaller unrounded margin of victory than that of the Minnesota Senate election. If both states have the same margin of victory, this market will resolve 50-50. For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. For elections that include runoffs, ranked-choice, or other multi-round elections, the relevant margin of victory will be that of the round in which the winner is determined. In the event that a relevant margin of victory cannot be determined by March 31, 2027, that state's margin of victory will be considered to be 0% for purposes of this market. The resolution source for this market will be a compilation of all of the relevant state election authorities responsible for certifying statewide elections, however, a consensus of credible reporting may also be used.

Volume$2.42K

Markets1

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Will Minnesota US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?

Related contracts

The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Minnesota US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?"; listed deadline 2026-11-10T15:00:00.000Z (UTC). Polymarket: "Closer Senate Race: Minnesota or Mississippi?"; listed deadline 2026-11-04T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.

Reviewed: Mon, 19 Oct 2026 03:04:58 GMT

Review notes

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

kalshi

Will Minnesota US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?

Yes: 61.5¢
No: 38.5¢

polymarket

Closer Senate Race: Minnesota or Mississippi?

Minnesota: 44.5¢
Mississippi: 55.5¢

Will Mississippi US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?

kalshi

Will Mississippi US Senate have the smallest margin of victory in the November 3, 2026 general elections for Minnesota US Senate and Mississippi US Senate?

Yes: 38.0¢
No: 62.0¢

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

PolymarketPolitics

Will the Democrats win the Minnesota Senate race in 2026?

Kalshi: Will Democratic (DFL)s win the Senate race in Minnesota?

Related contracts

PM Yes 86.5%Rules differK Yes 86%

Will the Republicans win the Minnesota Senate race in 2026?

Kalshi: Will Republicans win the Senate race in Minnesota?

Related contracts

PM Yes 13.5%Rules differK Yes 14.5%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

2 saved comparisonsNext deadline Nov 4, 2026 UTC

PolymarketKalshiPolitics

Closer Senate Race: Nebraska or Texas?

PM $614.24 · K 3.4K contracts

No comparable saved prices

0 saved comparisonsNext deadline Nov 4, 2026 UTC

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Discussion

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Next Market Deadline

Calculating time remaining…

Nov 04, 2026, 4:59 AM UTC

Market Insights

Price gaps of 2 pp+

Reviewed equivalent pairs

No currently reviewed equivalent pairs with both binary Yes prices are available.

Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.

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<iframe src="https://predictpedia.com/embed/wiSo4J" width="400" height="160" frameborder="0" style="border-radius: 8px; max-width: 100%;" title="Closer Senate Race: Minnesota or Mississippi?"></iframe>

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Closer Senate Race: Minnesota or Mississippi?

Closer Senate Race: Minnesota or Mississippi?