politics

Will the Democratic Party win the popular vote in the 2026 U.S. House of Representatives midterm elections by between 10% and 12%?

PlatformPolymarket Expires2027-07-01 Volume$9,684 Open Interest$20,350
YES
20¢
Implied probability: 20.5%
NO
79¢
Implied probability: 79.5%
30-DAY PROBABILITY HISTORY Low 20¢ · High 20¢ · Δ +0.0pp
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YES Price
20¢
NO Price
79¢
Total Volume
$9,684
Open Interest
$20,350
Expiration
2027-07-01
Days Left
280
About this market

What resolves this contract

This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by

Reading the odds on this market

At 20.5¢ for YES, traders are pricing about a 20.5% chance this happens, roughly 1 in 5.

$10 on YES buys about 49 contracts that pay $48.78 if it happens; $10 on NO at 79.5¢ buys about 12.6 that pay $12.58 if it does not.

$9,684 has traded on it on Polymarket, with $20,350 still riding on the outcome, making it number 123 by volume of the 203 markets we track.

Payouts are before platform fees; one contract pays $1 if its side wins.

How to read the price

Prediction market prices are expressed in cents on the dollar. A YES contract trading at 20¢ means the market is pricing in a 20.5% implied probability of the event resolving YES. If resolution comes back YES, the contract pays $1. If NO, it pays $0.

Volume vs. open interest

Total traded volume ($9,684) reflects every buy and sell across the life of this contract. Open interest ($20,350) is the dollar value of positions currently held by traders. Deep liquidity and wide open interest are the two signals that the quoted price is reliable.

Where to trade this market

This contract is listed on Polymarket. PicksByOdds does not accept deposits, execute trades, or offer brokerage. We publish the data; you decide what to do with it.

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FAQ

Common questions about this market

How is this market resolved?

This market will resolve according to the popular vote margin of victory between the Democratic Party and the Republican Party in the US House of Representatives midterm elections, scheduled for November 3, 2026. For the purpose of this market, the “popular vote margin of victory” is defined as the absolute difference between the percentage of valid votes cast for all Democratic Party House candidates and the percentage of valid votes cast for all Republican Party House candidates in this election. The percentage of the valid votes cast for each party’s House candidates will be determined by

When does this contract expire?

This contract closes on 2027-07-01, 280 days from now. After close, the final outcome is determined per the resolution rules above, and contracts settle at $1 (winning side) or $0 (losing side).

What happens if I buy YES at 20¢?

If the event resolves YES, each YES contract pays $1, a profit of 80¢ per dollar risked. If it resolves NO, the contract pays $0 and the full 20¢ is lost. Current market price implies a 20.5% probability of YES.

Where is this market listed?

This contract is listed on Polymarket. PicksByOdds aggregates and displays public market data; we do not broker trades or custody funds.

How reliable is the quoted price?

This market has $9,684 in total traded volume and $20,350 in open interest. Deeper liquidity generally means tighter spreads and more reliable implied probabilities. Prices refresh multiple times per day.

Disclaimer: Prediction market data on this page is sourced from public order books. Prices change continuously; figures shown here reflect the last refresh at 2026-09-24. Nothing on this page constitutes investment or betting advice.
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