Will John Cornyn win the Texas Republican Senate Primary runoff by between 0% and 3%?

18¢
Bid/Ask 10/26¢·Spread 15¢·Vol $0·OI $6,642.846·Closes May 25, 2026·36d remaining
0xfbe28d2997101a180d742259c92db1ca447a9b6ae498c46b44ff96c9894feadf
7-day price94 snapshots · 8 regime
23¢11¢Apr 10Apr 19

Analysis

AI-generated · updated daily

This market shows extreme illiquidity with zero 24-hour volume despite $6.6M open interest, suggesting the positions are stale or locked in. The 18¢ price implies only an 18% probability that Cornyn wins by 0-3%, yet the implied yield of 4,661% on the Yes side signals severe mispricing—likely because the narrow margin outcome is genuinely unlikely compared to wider victory margins. With 36 days to the May 26, 2026 runoff and a wide 15¢ bid-ask spread, this market lacks sufficient trading activity to establish reliable price discovery.

Resolution rules

The Texas Senate Republican primary runoff election is scheduled for May 26, 2026. This market will resolve according to the margin of victory between the top two candidates in the Texas Republican Senate Primary runoff election. For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly between two brackets, then this market will resolve to the higher placed bracket (ascending). If two candidates receive the same number of valid votes, this market will resolve according to the candidate whose last name comes first alphabetically. This market will resolve based on the official vote count once the count has been made official. If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”. The primary resolution source for this market will be information from the State of Texas, such as official statewide results published by the Texas Secretary of State (https://elections.sos.state.tx.us/index.htm); however, an overwhelming consensus of credible reporting may suffice. If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.

Indicators

IY (Yes) 4661.4%
IY (No) 224.6%
Adj IY 2331%
CRI 5
Overround 0.1%
▶ Full indicator table (5)
IndicatorValue
IY (Yes)4661.4%
IY (No)224.6%
Adj IY2331%
CRI5
Overround0.1%

Regime

Label
neutral
Score
0.409
Spread
15¢
Computed
4/19/2026, 7:56:54 AM
Observability mediumEvent type political
Indicators computed 4/19/2026, 7:53:36 AM

Trade

View on polymarketsf trade 0xfbe28d2997101a180d742259c92db1ca447a9b6ae498c46b44ff96c9894feadf yes 100

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