Live Odds · Updated October 24, 2026

How many Democratic House Incumbents will not win their Primary?

As of October 24, 2026, 06:27 PM ET, Polymarket traders price 10-12 at 93.7% in How many Democratic House Incumbents will not win their Primary? — $71.0K traded so far.

Last updated October 24, 2026, 06:19 PM ET with live prices from Polymarket. 24h volume: $1.4K.
Leading outcome
10-12
94%
A 93.7% price implies roughly a 94-in-100 chance, set by traders risking real money.
24H +8.0 pts7D −0.4 pts30D −0.2 pts
10-1293.7%
13-156.2%
Bid
93¢
Ask
94¢
Spread
1¢
Trade on Polymarket →
Range since January 14, 2026: 3.1% – 96.6% · Opened at 23.0%

Market facts

Event data
Event
How many Democratic House Incumbents will not win their Primary?
Category
US Election, Primaries, Congress, Politics, Elections, Trump
Total volume
$71.0K
Volume (24h)
$1.4K
Liquidity
$28.4K
Markets
2
Leading outcome
10-12 — 93.7%

What is the current price?

Momentum & history

The leading outcome, 10-12, is priced at 93.7%.

Price changes for the leading market — 24 hours: +8.0 pts; past week: -0.4 pts; past month: -0.2 pts.

Since January 14, 2026, 10-12 has traded between 3.1% and 96.6%. It opened at 23.0% and last traded at 93.7%.

DayClose
Oct 16, 202694.3%
Oct 18, 202689.2%
Oct 19, 202691.6%
Oct 20, 202694.8%
Oct 22, 202693.2%
Oct 23, 202685.9%
Oct 24, 202693.7%

Who is favored to win?

Outcomes

10-12 is favored at 93.7%.

OutcomePriceImplied probability24h changeVolumeVolume share
10-1294¢93.7%+8.0 pts$24.7K34.8%
13-156¢6.2%-3.5 pts$9.3K13.0%

See the full live book for this market on Polymarket

The leading market's spread is 1¢ (bid 93¢ / ask 94¢) — a tighter spread means cheaper round-trip trading.

How much has been traded?

Volume

$71.0K has been traded on this event in total, $1.4K of it in the last 24 hours, across 2 markets.

When does this market resolve?

Rules

Polymarket lists no fixed end date for this market.

The 2026 midterm elections are scheduled to be held on November 3, 2026, with congressional primaries running from March through September. This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections. An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered. This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources. A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election. … (condensed)

What do the biggest traders hold?

Top holders

The largest current holder of the leading market holds 2,906 shares of No.

HolderOutcome heldSharesValue at current price
0xa5ef39c3…No2,906$185
Demanding-CityYes1,350$1.3K
Infatuated-TreasuryYes1,310$1.2K
Belated-GlueNo930$59
Wan-GymnasticsYes694$650
Tremendous-DivideNo500$32
Automatic-CappuccinoYes500$468
Accomplished-PropertyYes232$217
Rapid-CartelYes213$199
Known-UseYes176$165

What are the latest trades?

Tape
SELL Yes — $963 at 92.3%BUY Yes — $534 at 87.4%BUY Yes — $311 at 92.5%
TimeOutcomeSidePriceSize
Oct 24, 04:34 PM ETNoSELL5.8%$0
Oct 24, 06:12 AM ETYesSELL92.1%$1
Oct 24, 06:12 AM ETYesSELL5.2%$0
Oct 24, 05:10 AM ETNoBUY94.9%$19
Oct 24, 05:07 AM ETYesSELL4.6%$0
Oct 24, 05:06 AM ETYesBUY93.0%$32
Oct 24, 05:05 AM ETNoSELL7.0%$0
Oct 24, 05:05 AM ETNoBUY94.5%$19
Oct 24, 05:05 AM ETYesSELL92.9%$17
Oct 24, 05:05 AM ETYesSELL6.0%$1

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Frequently asked questions

FAQ

What are the odds of How many Democratic House Incumbents will not win their Primary??

As of October 24, 2026, 06:19 PM ET, the leading outcome is 10-12 at 93.7%. Next is 13-15 at 6.2%. See the live book on Polymarket: https://polymarket.com/event/how-many-democratic-house-incumbents-will-not-win-their-primary?via=bro

How much money has been traded on How many Democratic House Incumbents will not win their Primary??

$71.0K in total volume, with $1.4K traded in the last 24 hours across 2 markets.

What is the most likely outcome of How many Democratic House Incumbents will not win their Primary?, according to Polymarket traders?

10-12, priced at 93.7% as of October 24, 2026, 06:19 PM ET. Prices are implied probabilities backed by real-money trading.

Browse the live odds index, today's biggest movers, and Whale Watch for the largest positions.

⚠️ Not financial advice: odds swing hard on news. Never bet money you can't afford to lose, and always read a market's resolution rules before trading.

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