TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 11:02 AM EST
Kalshi
The 2026 NY-12 Democratic primary will determine the party's nominee for a U.S. House seat representing New York's 12th congressional district. Multiple candidates are competing in this primary election, and the outcome will be measured by the margin of victory achieved by the winner.
The margin of victory is calculated as the vote percentage (or raw votes/electoral votes depending on margin type) received by the candidate minus the vote percentage received by the candidate finishing immediately behind them if they win, or the candidate finishing first if they lose. For percentage points, margins are based on vote percentages; for raw votes, total votes cast; for electoral votes, electoral vote counts. Each margin range is inclusive of its lower bound and exclusive of its upper bound with no rounding applied. If a candidate wins, the margin is positive; if they lose, the margin is negative; if they tie for first, the margin is zero. For uncontested races where the candidate is the only option, the margin is 100 percentage points or the total votes cast. If a candidate runs under multiple parties or is listed multiple times, votes are summed for the same underlying person.
Prediction market odds on Kalshi reflect real-money trader expectations about the final margin, which often diverge from traditional polling averages. While polls measure voter preference at a single moment, prediction markets incorporate trader beliefs about turnout, late-breaking news, and ground dynamics. Markets typically update faster than polls and can price in information that surveys miss. Comparing Kalshi odds to recent polling of NY-12 Democratic voters reveals whether traders expect a tighter or wider margin than current survey data suggests, offering a complementary lens on primary competitiveness.
The NY-12 Democratic primary margin of victory market resolves on Jun 23, 2027, following the official primary election date. Resolution is determined by the certified final vote margin between the top two finishers in New York's 12th Congressional District Democratic primary. The outcome is measured as a percentage-point difference and matched against the predefined margin ranges offered in the market contracts. Official results from the New York State Board of Elections serve as the authoritative source for determining which outcome contract resolves affirmatively.
Key catalysts for NY-12 Democratic primary margin of victory odds include candidate endorsements from prominent local or national figures, debate performances, campaign spending reports, and earned media coverage. Turnout models and voter registration data shifts can signal which candidate's base is more energized. Late-breaking scandals, policy announcements, or demographic shifts in the district may reshape trader expectations about the final margin. Polling releases closer to election day typically trigger sharp repricing as traders update their margin forecasts. Ground-game intensity and field operation reports also influence whether traders expect a competitive or decisive outcome.