TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
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2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 10:55 AM EST
Kalshi
The 2026 New York 7th Congressional District Democratic primary will determine the party's nominee for this House seat. This event tracks the margin of victory—the difference in vote share or raw votes between the winner and the runner-up—for specific candidates in that primary election scheduled for June 17, 2026.
The margin of victory is calculated as the vote differential between a candidate and their closest competitor. If the candidate wins, the margin equals their votes/percentage minus the second-place finisher's votes/percentage. If the candidate loses, the margin is negative and equals their votes/percentage minus the first-place finisher's votes/percentage. In case of a tie for first place, the margin is zero. For uncontested races where a candidate runs unopposed, the margin is 100 percentage points or the total votes cast. All votes for the same candidate running under multiple party lines are aggregated. Margin ranges are inclusive of their lower bound and exclusive of their upper bound, with no rounding applied—for example, a margin of exactly 6% falls in the 6-7% range, not 5-6%. Positive margins indicate a win; negative margins indicate a loss. The margin type (percentage points, raw votes, or electoral votes) determines the specific calculation method used.
Prediction market odds often diverge from traditional polling because traders incorporate a broader set of signals—including campaign momentum, fundraising, endorsements, and historical turnout patterns—alongside public surveys. While polls capture voter sentiment at a single moment, this market prices in real-time adjustments as conditions shift. Traders with skin in the game have incentives to forecast accurately, sometimes leading markets to move ahead of or contradict headline poll numbers. Comparing the two can reveal where consensus differs and highlight which factors the market weights most heavily in predicting the final margin.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell contracts representing different margin outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each contract's price reflects the market's implied probability of that outcome occurring. As traders place bids and offers, prices adjust dynamically to balance supply and demand. The spread between buy and sell prices tightens as liquidity increases, and volume data shows how much trading activity surrounds each outcome. This continuous pricing mechanism allows you to enter or exit positions at transparent, real-time rates.
This market resolves around Jun 17, 2027, once the NY-07 Democratic primary has concluded and the margin of victory is verifiable from credible public reporting. The outcome is determined by the final vote count and the difference between the top two finishers in the primary election. Resolution depends on official results being certified and made public by New York election authorities. Until that point, the market remains open for trading as new developments and campaign activity influence trader expectations about the likely margin.
Major catalysts include candidate endorsements, debate performances, fundraising announcements, and shifts in local media coverage. Polling releases—especially those showing significant movement—often trigger repricing as traders update their margin forecasts. Campaign spending surges, voter registration drives, and turnout-mobilization efforts can all signal changing dynamics. Unexpected candidate withdrawals or entry would reshape the competitive landscape. As election day approaches, early voting data and last-minute campaign events become increasingly influential. Breaking news about candidates' records or controversies may also shift trader sentiment about the likely outcome.