TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 25, 2:41 PM EST
Kalshi
These markets focus on predicting the point differential in the first half of an upcoming professional football game. Participants assess how strongly either team might perform in the initial 30 minutes of play. Outcomes depend entirely on the score difference at halftime, reflecting early-game momentum and strategy execution.
All markets resolve based solely on the point differential at the end of the first half of the designated game. A 'Yes' outcome occurs if the winning team exceeds the specified point margin outlined in each individual market rule. Only points scored during the first half are considered; any scoring events or lead changes in the second half have no impact on resolution. The markets cover a range of thresholds from narrow margins (e.g., over 2.5 points) to substantial leads (e.g., over 15 points), allowing participants to speculate on varying degrees of dominance. The governing body's official scoring and game records are the definitive sources for resolution, and Kalshi explicitly disclaims any formal association with the league or its trademarks.
Generally, prediction market odds tend to reflect the wisdom of the crowd, often proving more accurate than traditional sportsbook odds, particularly as the event approaches. Sportsbooks set their lines based on models and internal analysis, while this market aggregates the opinions of many individual traders. However, initial sportsbook lines can sometimes influence the early movement in this market. Discrepancies can arise due to differing risk assessments, public perception, and the incentives of each venue. It’s common to see the market and sportsbook odds converge as kickoff nears.
On Kalshi, this market is priced through a continuous order book where traders buy and sell contracts representing their beliefs about the first-half spread. The price of a contract reflects the probability of that spread occurring, as determined by supply and demand. Traders are incentivized to provide accurate predictions, as profitable traders are rewarded. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price movements are driven by new information, analysis, and the collective judgment of all participants trading on Kalshi.
This market resolves around Oct 25, 2026, with the outcome confirmed once the Indianapolis versus Minnesota first-half spread is verifiable from credible public reporting. The final result will be based on the official spread determined at halftime of the game. The platform will then determine which contracts pay out based on whether the actual spread falls within the range represented by those contracts. All trading will cease once the outcome is officially known and verified.
Several factors could influence the price of this market. News regarding injuries to key players on either the Indianapolis or Minnesota teams would likely cause significant movement. Changes in weather forecasts, particularly if they suggest adverse conditions, could also impact trading activity. Late-breaking news about team strategy or coaching decisions might also shift the market. Finally, large-volume trades from informed participants could signal a change in sentiment and cause the price to adjust rapidly.