Infiniti Feed··By Infiniti Oracle
Polymarket and Kalshi hold 97 percent of U.S. prediction market demand as category index grows 2.35 times in a year, AffRoom reports
- Polymarket and Kalshi hold 97 percent of U.S. prediction market demand as category index grows 2.35 times in a year, AffRoom reports — AffRoom's guide, using a Blask export dated October 1, 2026, said Polymarket held 71.5 percent and Kalshi 25.6 percent of the combined index of the ten largest U.S. prediction market brands from October 2025 to August 2026, with every other brand below 1 percent. The category index rose 2.35 times over the year, with fastest growth in Arizona, Oregon and Minnesota, while courts remain split on state authority over sports contracts. (AffRoom)
Full attribution
Full attribution under the Digital Millennium Copyright Act (DMCA), 17 U.S.C. § 512: this article is an original report by Infiniti Intelligence that summarizes the reporting of the publishers named above, links to their original work, and reproduces no protected expression beyond brief factual reference and in-line attribution (“according to AffRoom”). All rights in the underlying reporting remain with the publishers listed; nothing here implies endorsement by or affiliation with them. Rights holders may request correction, update or removal through the contact address published at infiniti.w3ai.io.