TOTAL VOLUME:
$150.1b
24H VOL:
$142,857,652
24H TRANSACTIONS:
2,859,322,643
OPEN INTEREST:
$1,733,278,615
483,990
Markets across
35,811
events
MATCHED EVENTS:
3,349
PLATFORM COVERAGE:
5
Polymarket:
38%
VS.
Kalshi:
62%
$
This market tracks the Republican margin of victory in Maine's 2026 U.S. Senate election. On Kalshi, the probability that Republicans win by at least 5 percentage points stands at 35.0%, while the probability they win by at least 1 percentage point is 31.0%. Resolution will be determined by official election results following the November 2026 Senate election. Watch the 2026 election outcome on November 3, 2027, when results will be finalized and the market will settle.
The Republican Party's victory margin in the Maine Senate race is calculated as their vote percentage minus the vote percentage of the runner-up (or first-place finisher if Republicans lose). Margin ranges are inclusive of their lower bound and exclusive of their upper bound; for example, a margin of exactly 6% falls within the 6-7% range rather than 5-6%. No rounding is applied to the calculated margin. If the Republican Party wins, the margin is positive; if they lose, it is negative; if they tie for first, the margin is zero. For uncontested races where Republicans are the only candidate, the margin is 100 percentage points. Votes cast under multiple party lines for the same underlying Republican entity are summed together.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing different outcomes, and the prices of these contracts reflect the market's collective probability assessment. As more traders participate, the prices converge towards what the market believes is the fair value. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Price movements are influenced by news events, polling data, and any information that affects perceptions of the likely outcome in the Maine Senate election. The current volume suggests active engagement from those following the race.
This market resolves around Nov 3, 2027, with the outcome confirmed once the event is verifiable from credible public reporting. The final margin of victory for the U.S. Senate election in Maine, as reported by official election results, will determine the outcome of this market. Traders will be looking to see which outcome aligns with the final vote count. The resolution will be based on the official results released by the relevant election authorities and reported by major news outlets.
Several signals or events could significantly move this market before Nov 3, 2027. Major endorsements, unexpected fundraising reports, and significant shifts in polling data are all likely to influence trading activity. Debates between candidates, particularly if one candidate performs exceptionally well or poorly, could also trigger price changes. Any unforeseen events impacting voter turnout, such as a major weather event or a national crisis, could also have a substantial effect on the perceived probabilities and, therefore, the prices in this market.