Despite close polling, prediction markets are treating some New York House primaries as done deals.
Traders on prediction markets have found keen interest in four Democratic primaries for New York House districts.
There are five New York House districts getting real-money attention in their Democratic primaries heading into Tuesday’s election:
- NY-7
- NY-10
- NY-12
- NY-13
- NY-17
And the prediction markets are telling a much cleaner story than the polling does. Traders on Kalshi and Polymarket have mostly settled on clear favorites even as recent polls and local reporting suggest some of these races are far less wrapped than the prices imply.
Markets say NY-10 is wrapped
The most dramatic example is NY-10, where Kalshi has former New York City Comptroller Brad Lander around 98% and incumbent Rep. Dan Goldman effectively priced out. There is $386,000 in contract volume.
The race has drawn enough attention to keep pollsters and local reporters busy. That is the kind of market number that makes the contest look over before it has really started.
It is also a reminder that prediction markets can be very confident when one candidate has the organizational and political momentum, even if the broader public picture is messier.
Why NY-10 stands out
The 10th District is the race where the market and the political story are most starkly out of sync. Kalshi gives Lander a near-lock, but Goldman’s incumbent status and local polling coverage suggest the race has enough life to warrant more than a shrug.
The markets may be right, but the size of the gap suggests traders are either seeing something polls miss or leaning very hard on the assumption that the anti-incumbent lane is already closed.
It could be a strong test of whether prediction markets can price Democratic machine politics, celebrity candidates, and ideological insurgents better than public polling can.
NY-13 polls say it will be close
The 13th District looks closer in the polling than the market does. A recent Data for Progress poll had Darializa Avila Chevalier ahead of incumbent Rep. Adriano Espaillat 39% to 35%.
Meanwhile, prediction market data shows a significant lead for Espaillat. On Kalshi, Espaillat is priced at 69% on $497,000 in volume. Espaillat is at 67% on Polymarket, with $317,000 in volume.
That is a good example of the central tension in these races. The market is not necessarily ignoring the polls, but it is clearly placing a heavier weight on incumbent power, coalition durability, and turnout assumptions.
The Schlossberg factor
The 12th District is the most unusual race in the bunch because Jack Schlossberg’s name recognition keeps it interesting, even though markets do not seem to think he has a real path. But polls also don’t suggest John F. Kennedy’s grandson has a path to victory, as he recently dropped to third.
Kalshi currently has Assemblymember Micah Lasher at 68%, Assemblymember Alex Bores at 32%, and Schlossberg at 2.6%, on $763,000 in volume. Polymarket traders have poured $605,000 into the race, with similar pricing.
Lasher is the clear favorite for traders, while polling has shown a more open race with enough undecideds to make the primary more volatile than the market implies.
NY-12 feels like a classic “famous name versus actual coalition” race, and the prediction markets don’t seem to buy it. Instead, traders are basically saying the novelty factor is real, but not enough to overturn the local political structure.
Valdez takes commanding lead
In the 7th District, Assemblymember Claire Valdez is up significantly in the prediction markets over Brooklyn Borough President Antonio Reynoso to replace retiring Rep. Nydia Velázquez.
On Kalshi, Valdez is priced at 78% on $432,000 in volume. On Polymarket, she’s tracking at 81% on $273,000 in volume.
It’s an interesting read in a race without an incumbent. Popular New York City Mayor Zohran Mamdani endorsed Reynoso this year.
The most recent Emerson College poll has Valez up 23% to 21%, with 43% undecided.
Polymarket trading on NY-17
Traders on Polymarket also took a keen interest in the 17th District, where the Democratic candidates are vying to challenge incumbent Republican Rep. Mike Lawler.
Cait Conley appears to have a strong lead in the polls, including double-digit leads in two Tavern Research polls and a Public Policy Polling survey released this month.
And Polymarket traders price her at 89% heading into Tuesday’s election on $163,000 in volume.
It is a vulnerable GOP seat in a race as the parties look to control the House. Lawler, largely seen as a moderate, unseated a five-term Democratic incumbent in the last election.
Why prediction markets like these New York House district primaries
Prediction markets are treating these primaries as already decided before Tuesday’s election, while polling suggests at least some of them are still live.
The 10th District looks the most overconfident, the 12th District looks the most name-driven, and the 13th District looks like the best place to watch whether an insurgent can actually beat an incumbent when the polls and the market are pulling in different directions.
If the prediction markets are right, this will be another example of real-money traders getting ahead of the conventional horse-race coverage. If they are wrong, New York could end up producing one of the more interesting primary mispricings of the cycle.
