Terminal
Infiniti Feed

Sports made up 80 percent of Kalshi trading versus 39 percent at Polymarket

Pew Research Center data cited by TechJury found sports accounted for about 80 percent of Kalshi trading volume from July 2024 through April 2026, compared with 39 percent at Polymarket. Polymarket US rose from 4 percent of Polymarket total volume in January 2026 to about 39 percent by July.

Sports exposure differed sharply

Sports represented about 80 percent of Kalshi trading volume from July 2024 through April 2026, versus 39 percent at Polymarket, according to TechJury, citing Pew Research Center data.

The comparison shows a substantial difference in the platforms’ trading mix over that period. Sports accounted for roughly four-fifths of Kalshi volume, while making up less than half of Polymarket volume.

Polymarket US gained share

TechJury also reported that Polymarket US accounted for 4 percent of Polymarket’s total volume in January 2026. By July, that share had reached about 39 percent.

That shift measures the US operation’s contribution to Polymarket’s overall volume, rather than the proportion of trading tied to sports. The two measures describe separate aspects of the platform’s activity and cover different time frames.

What it means for prediction markets

  • Platform volume reflects different category mixes. The reported figures show Kalshi was more heavily concentrated in sports than Polymarket from July 2024 through April 2026.
  • The US share became more significant at Polymarket. Its rise from 4 percent in January 2026 to about 39 percent by July marks a change in where the platform’s volume was generated.
  • Shares are not absolute volumes. The supplied figures do not establish which platform handled more sports trading in absolute terms or whether Polymarket’s total volume grew as its US share increased.
KalshiPolymarketInfiniti MarketsInfiniti Signals

Sources & attribution

Published
  1. Source
    TechJury
    Publisher
    The publisher did not list a web address.
    Source URL
    The feed did not publish this story's article address.

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 TechJury”). 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.

Related