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How to play Halloween Fortune
Even before the primetime matchup in Kansas City, it became abundantly clear that the industry would shatter previous marks for weekly activity. The AFC West showdown bolstered the already robust totals. Overall, volume for the week hit a record $15.9 billion, according to Bank of America, up 16% from a week earlier.
The pure-play prediction market-operators, Polymarket and Kalshi, emerged from Week 1 as the clear winners. On one hand, Kalshi’s market share lead narrowed over its competitors, falling to 82% for the week ended 13 September, down from 86% a week earlier.
Still, Kalshi had a nine-fold lead over Polymarket, its next closest rival. Polymarket, meanwhile, led the group with 762,000 app downloads, edging Kalshi, DraftKings and FanDuel in the category. The downloads represented a 13,509% weekly increase and 25% of total category downloads, Polymarket wrote in a statement.
How to play Halloween Fortune
Prediction markets have become more and more intertwined with sports and entertainment businesses. Polymarket has agreements with Major League Baseball and Sportsradar. Sportsradar provides data and services for more than 20 sports leagues and competitions.
The company has also pursued partnerships outside the normal financial media. Its deals include relationships with major sports organizations and entertainment properties, signaling efforts to integrate prediction markets into mainstream content and information services.
The conclusion of the Yahoo Finance deal comes as there is more talk about the use of prediction market data in journalism. Operators such as Polymarket and rival Kalshi have touted their markets as a way to get real-time information on how likely future events are to occur.
How to play Halloween Fortune
Patrick Bergin, an attorney for Scotts Valley, rejected that argument, noting the difficulty of converting a site explicitly planned and built for gaming into something like an auto dealership.
Bergin also emphasized that the tribe had formally notified Interior twice about its launch timeline for the Preview Casino, providing regular progress updates without ever receiving a directive from federal officials to halt the project.
The conflict stems back to January 2025, when the outgoing Biden administration initially determined that the Vallejo parcel was eligible for gaming.
