TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 16, 10:46 AM EST
Kalshi
A candidate will compete in the first round of South Carolina's 2026 Republican Senate primary, with outcomes tracked across multiple victory margin ranges.
The margin of victory is calculated as the vote percentage (or raw votes or electoral votes, depending on margin type) received by Lindsey Graham minus the vote percentage received by the candidate finishing immediately behind Graham if Graham wins, or minus the vote percentage of the first-place finisher if Graham loses. For percentage points, margins are based on vote percentages; for raw votes, margins are based on total vote counts; for electoral votes, margins are based on electoral vote totals. Each margin range is inclusive of its lower bound and exclusive of its upper bound, with no rounding applied to the calculated margin. If Graham runs under multiple parties or is listed multiple times, votes are summed. If Graham wins, the margin is positive; if Graham loses, the margin is negative; if Graham ties for first, the margin is 0. For uncontested races where Graham is the only candidate, the margin is 100 percentage points or the total votes cast (for raw votes).
Prediction market odds on Kalshi often diverge from traditional polling averages because markets incorporate real-money incentives and forward-looking trader expectations. While polls capture voter sentiment at a single moment, prediction markets reflect aggregated beliefs about the final margin outcome, including factors like campaign momentum, fundraising, and late-breaking news. Traders betting on the South Carolina Republican primary margin are motivated to identify discrepancies between current odds and likely results. Comparing market prices to published polling helps identify whether the market is pricing in a wider or narrower margin than surveys suggest, revealing where informed traders see value.
The South Carolina Republican Senate primary margin market resolves on Jun 9, 2027. Resolution is determined by the official margin of victory announced by South Carolina election authorities following the primary election. The outcome reflects the percentage-point or vote-count difference between the first and second-place finishers in the Republican primary race. Market participants should monitor official state election results and certified vote tallies to understand how the final margin will be calculated and applied to resolve all open positions.
Key catalysts for the South Carolina Republican Senate primary margin include candidate endorsements, debate performances, campaign spending announcements, and shifts in voter preference polling. Major national political developments, scandals, or shifts in party dynamics could reshape the race. Fundraising reports and media coverage intensity may signal candidate viability and momentum. Turnout expectations and demographic shifts in South Carolina's Republican electorate could widen or narrow the predicted margin. Late-campaign surges, candidate withdrawals, or consolidation of support behind frontrunners are also significant events that traders monitor when adjusting their margin predictions.