TOTAL VOLUME:

$146.7b

24H VOL:

$162,970,420

24H TRANSACTIONS:

2,781,800,361

OPEN INTEREST:

$1,740,912,349

501,518

Markets across

37,286

events

MATCHED EVENTS:

2,933

PLATFORM COVERAGE:

5

Polymarket:

38%

VS.

Kalshi:

62%

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Which party will win the U.S. Senate?
kalshi

Which party will win the U.S. Senate?

Nov 6, 2024, 10:00 AM EST - Feb 1, 2027, 10:00 AM EST
Total volume:
$17,022,493
Volume 24h:
$476,947
17%
Liquidity:
N/AN/A
Open interest:
$10,329,089
3%

Democratic Party

 - Kalshi

Democratic Party - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Feb 1, 2027

Will Democrats win the U.S. Senate in 2026?

68%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 68¢ buys you 147 shares | Odds: 68% Total Payout: $147 | Net Profit: $47 Multiplier: 1.47x | ROI: 47% | APY: 297% 101 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

Democratic Party

Trade
68%
2%
Yes 68¢No 33¢
1¢
N/A
$7,556,254
3%
15%
$4,103,058
3mo 1w 4d
active
kalshi

Republican Party

32%
3%
Yes 32¢No 69¢
1¢
N/A
$9,466,239
3%
15%
$6,226,031
3mo 1w 4d
active
Total markets: 2

Intro

This market tracks which party will control the U.S. Senate after the 2026 elections. Currently, Kalshi gives a 62.0% probability to Democrats winning control, while Republicans are at 39.0%. The market resolves based on control of the U.S. Senate following the 2026 elections, as determined by whether the Republican Party has won control – per the resolution source. Traders should particularly watch the results of the 2026 midterm elections, as the outcome will likely be clear by the resolution date of February 1, 2027, which marks the end of the betting period for this market.

Kalshi

If the Democratic Party has won control of the U.S. Senate in 2026, then the market resolves to Yes. If the Republican Party has won control of the U.S. Senate in 2026, then the market resolves to Yes.

Frequently asked questions

On Kalshi, the dashboard for the U.S. Senate control market tracks the current odds of each potential outcome, represented as probabilities. You can also view the price history of contracts predicting different parties winning control, allowing you to analyze how sentiment has shifted over time. The 24-hour trading volume, currently $465,353, indicates how actively traders are participating in this market. Overall volume for this market is $17,022,493, reflecting the total amount wagered on all possible outcomes. This provides a snapshot of where the crowd currently believes control of the Senate will land.

Currently, prediction market odds often reflect a different perspective than traditional polling averages. While polls aim to capture a snapshot of current voter intentions, this market aggregates the informed predictions of many individuals, potentially incorporating factors not fully captured in polls, such as fundraising, candidate quality, and evolving political dynamics. Discrepancies can arise due to differing methodologies and the incentives at play – traders in this market have financial stakes in accurately forecasting the outcome, while poll respondents may not. It’s important to consider both sources of information when forming your own view.

This market resolves around Feb 1, 2027, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the outcome will be determined by which party holds a majority of seats in the U.S. Senate following the 2026 elections. This includes any special elections that may occur before the start of the new congressional term. The final seat distribution will be verified against credible public sources to determine the winning party and settle the market.

Several signals and events could significantly impact this market between now and Feb 1, 2027. Major economic shifts, unexpected political scandals involving key candidates, and significant changes in national polling data are all potential catalysts. Primary election results will also be closely watched, as they indicate the strength of different candidates and potential shifts in party dynamics. Furthermore, any major geopolitical events or legislative developments could influence voter sentiment and, consequently, the trading activity in this market. Unexpected retirements of key Senators could also cause substantial movement.