TOTAL VOLUME:
$114.4b
24H VOL:
$101,900,907
24H TRANSACTIONS:
1,362,287,844
OPEN INTEREST:
$1,178,729,067
335,697
Markets across
33,528
events
MATCHED EVENTS:
4,579
PLATFORM COVERAGE:
5
Polymarket:
42%
VS.
Kalshi:
58%
$
This market tracks which party will hold the House seat for Texas's 15th congressional district when the new representative is sworn in for the 2027 term. On Kalshi, Republicans are currently favored at 58.0%, while Democrats stand at 44.0%. The market will resolve based on the party affiliation of the House member sworn in for TX-15 beginning in 2027, as determined by official House records. Watch for the general election results on Election Day to see which candidate emerges victorious in this competitive district.
If the House member sworn in for TX-15 for the term beginning in 2027 is a member of the Democratic Party, then the market resolves to Yes. If the House member sworn in for TX-15 for the term beginning in 2027 is a member of the Republican Party, then the market resolves to Yes.
Prediction market odds on Kalshi often diverge from traditional polling because markets incorporate real-money incentives, late-breaking news, and trader expertise. While polls measure voter sentiment at a single moment, prediction markets aggregate forward-looking expectations and adjust continuously as new information emerges. For TX-15, comparing the market's implied probability to recent polls can reveal whether traders are pricing in factors—such as fundraising, turnout models, or demographic shifts—that public surveys may not yet fully reflect.
On Kalshi, the TX-15 House race is priced as a binary contract where traders buy or sell shares representing each outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The Democratic outcome is currently trading at an implied probability of 53.0%, while the Republican outcome reflects the inverse. Prices move as traders place orders, and you can enter positions at any time before market close. Total volume on this contract stands at $1,173,872, indicating the depth of interest and liquidity available for position entry or exit.
Key catalysts for TX-15 include campaign announcements, debate performances, endorsements from national party figures, and shifts in voter registration or early voting data. Economic news affecting the district, scandals or gaffes by either candidate, and changes in national political momentum can also influence trader sentiment. Polling releases, fundraising reports, and local media coverage may trigger sharp price movements. As election day approaches, turnout models and final voter contact efforts typically drive increased trading volume and volatility on the market.