How many Senate seats will Republicans hold after the Midterms? Kalshi odds
On Kalshi, the favourite is 48, at 17%. The market settles by Feb 1, 2027, and $310K traded in the last 24 hours. Each contract pays $1 if it is right, so 17¢ reads as a 17% chance. Polymarket lists it too, and we compare the two prices below.
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Also on Polymarket: Polymarket's page
Kalshi odds on every outcome
Show 5 more outcomes
Chance is each outcome's Yes price on Kalshi. A Yes contract at 17¢ pays $1 if that outcome wins.
Kalshi vs Polymarket on these questions
The same questions on both venues. When the prices differ, the cheaper side costs you less for the same payout.
Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections?
| Venue | Yes | No | Fee | 24h volume | Liquidity | |
|---|---|---|---|---|---|---|
| Polymarket | 2¢cheapest to buy | 98¢ | 0.1¢ | $0 | $46K | Trade → |
| Kalshi | 4¢ | 96¢ | 0.2¢ | $6K | – | Trade → |
Will the Republican Party hold exactly 56 Senate seats after the 2026 midterm elections?
| Venue | Yes | No | Fee | 24h volume | Liquidity | |
|---|---|---|---|---|---|---|
| Polymarket | 1¢cheapest to buy | 99¢ | <0.1¢ | $78 | $44K | Trade → |
| Kalshi | 2¢ | 98¢ | 0.1¢ | $11K | – | Trade → |
How the odds have moved
Kalshi's own series for the outcome the headline prices, from where its history starts; one venue, not a blend.
How this market resolves
The market asks: “Will the Republican party hold exactly 48 Senate seats in the 120th Congress?” Each outcome is its own contract: it pays $1 if it is the answer, and nothing if not. Kalshi publishes the full settlement rules on the market's page. Read them on Kalshi (opens in a new tab)
Scheduled resolution: Feb 1, 2027.
How to trade this market on Kalshi
- Check your state first. A few states restrict some contracts.
- Open a Kalshi account. Our Kalshi review covers sign-up and payouts.
- Buy Yes or No at the price shown, 17¢ for 48 right now. Each contract pays $1 if you are right.
- Sell any time before it settles, or hold to the result. Kalshi's fees apply to each trade.
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Common questions
What are the Kalshi odds on “How many Senate seats will Republicans hold after the Midterms?”?
On Kalshi, the favourite is 48, at 17%. That is a market-implied probability, not a forecast, and it moves as traders buy and sell.
How does this market resolve?
By Kalshi's own settlement rules for this market. Two venues can word the same question differently and settle differently, so read them before you trade.
Is this question on Polymarket too?
Yes. Polymarket's page has its prices and rules. The 2 questions both venues price are compared above, each with its own side-by-side page.
Can I trade this market in my state?
In most states, yes, on Kalshi. A few states have acted against some contracts. Check your state first.
How accurate are Kalshi odds?
Often more accurate than polls, though never certain. A price of 70% should lose three times in ten. How accurate prediction markets are has the research.
What does it cost to trade on Kalshi?
A trading fee on each contract, largest near 50¢ and smaller towards either end. Kalshi's fees has the formula.