TOTAL VOLUME:
$154.8b
24H VOL:
$238,896,186
24H TRANSACTIONS:
2,985,204,718
OPEN INTEREST:
$1,897,934,485
408,127
Markets across
39,552
events
MATCHED EVENTS:
4,429
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
D+37 to D+39.9
- Kalshi
D+37 to D+39.9 - Kalshi
1W
News
Positive
Negative
Neutral
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Vol.
·
Resolves Nov 4, 2026
Time left: 01d:08h:08m
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This event tracks the difference in mail ballot returns between Democratic and Republican registered voters in Pennsylvania leading up to the 2026 general election. It measures the margin of party registration among returned mail ballots at a specific cutoff time, providing insight into voting behavior and preferences before the election day.
The event evaluates the margin between Democratic and Republican shares of returned mail ballots in Pennsylvania as reported by the UF Election Lab for the 2026 general election. The determination is made at 10:00 AM ET on November 4, 2026, using the 'Percent' column from the 'Returned Mail Ballots by Party Registration' table on the UF Election Lab's Pennsylvania page. If the UF Election Lab website is unavailable, the percentages are calculated from the acceptdem, acceptrep, and accept_none values in the UF Election Lab's early vote data file for Pennsylvania and rounded to one decimal place. The Democratic share minus the Republican share, in percentage points, must fall within one of six specified ranges for the market to resolve as Yes. A negative value indicates a Republican lead. All ranges include their endpoints, and no updates after the 10:00 AM ET cutoff are considered.
Currently, prediction market odds offer a distinct perspective when compared to traditional analyst forecasts for the Pennsylvania mail voter demographic. While polls and expert opinions provide valuable insights, this market reflects the collective judgment of individuals with skin in the game. Discrepancies can arise due to differing methodologies, biases, or access to information. It’s important to remember that prediction markets incentivize accurate forecasting, as traders profit from correctly anticipating the outcome, potentially leading to a more accurate view than static predictions.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing different outcomes, and the price of each contract reflects the probability of that outcome occurring. As more traders buy a particular contract, its price increases, indicating a higher perceived probability. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market depth shows the volume of contracts available at various price points, giving traders insight into potential price movements and liquidity. This dynamic pricing mechanism allows the market to efficiently aggregate information and reflect the collective wisdom of the crowd.
This market resolves around Nov 4, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the final margin in party registration among Pennsylvania mail voters will be assessed based on official election results data released by relevant election authorities. The outcome will be determined by the difference in percentage points between the two leading parties among those who voted by mail. The precise methodology for calculating this margin will be based on publicly available data and established election procedures.
Several signals or events could significantly move this market before Nov 4, 2026. Major shifts in voter registration trends, particularly among mail voters, would be a key catalyst. Significant news coverage regarding voting access or security concerns related to mail-in ballots could also influence trader sentiment. Unexpected changes in campaign strategy or messaging targeting mail voters could also play a role. Finally, any reliable polling data indicating a substantial change in party preference among this demographic would likely cause price fluctuations in this market.