TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 12, 4:45 PM EST
Kalshi
This market on Kalshi tracks the expected margin of victory in the 2026 Texas Republican Senate runoff, specifically whether the winning candidate will secure a margin between 20% and 100%. The leading outcome currently stands at 99.6%, while a narrow victory margin between 0% and 5% is priced at 0.2%, according to Kalshi's pricing. Resolution will be determined by the official election results as reported following the runoff vote. Watch for the final vote tallies on election day in 2026, which will determine the exact margin and settle the market by the May 26, 2027 resolution date.
The margin of victory is calculated as the vote percentage (or raw votes or electoral votes, depending on margin type) received by the candidate minus the votes received by the candidate/party/option that finishes immediately behind them if they win, or the candidate/party/option that finishes first if they lose. Each margin range is inclusive of its lower bound and exclusive of its upper bound, with no rounding applied to the calculated margin. If a candidate runs under multiple parties or is listed multiple times, votes attributable to the same underlying natural candidate are summed. Positive margins indicate victory, negative margins indicate loss, and a margin of 0 indicates a tie for first place. For uncontested races where the candidate is the only option, the margin is 100 percentage points or the total votes cast. The market covers Ken Paxton margins ranging from 0-5% to 20%+, and John Cornyn margins ranging from 0-5% to 20%+.
Major catalysts include new polling releases showing shifts in voter preference, campaign spending announcements, debate performances, endorsements from prominent Texas Republicans, turnout-driving events, and late-breaking political news. Primary election results and candidate positioning in earlier contests can reshape expectations for the runoff margin. Demographic or regional voting pattern changes, media coverage intensity, and ground-game developments also influence trader assessments. Each of these signals may prompt repricing as the market updates its collective forecast of the final margin outcome.