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Missouri Attorney General Catherine Hanaway has sent cease-and-desist letters to six prediction market companies, accusing them of offering illegal sports betting events under Missouri law.
According to KCTV5 News, the companies named are Polymarket, Kalshi, crypto.com, Novig, Underdog, and Robinhood. The report says Missouri allows sports betting only through approved vendors or vendors partnering with the state’s professional sports teams or casinos.
Six companies named in Missouri enforcement move
Hanaway’s office argues the platforms are repackaging sports betting as event-based products. The report links that position to Missouri’s sports betting framework, which voters passed in 2024 and which includes an age limit of 21 or older.
The report does not detail the specific legal authority cited in the letters or say what formal enforcement step would come next if the companies do not comply.
Companies say their products are federally protected
Two of the companies named in the report, Polymarket and Robinhood, responded publicly. According to KCTV5, they said their events are “federally protected and safe.”
That response highlights the core dispute in cases like this: whether these products should be treated as state-regulated sports betting or as federally protected event contracts. The KCTV5 report does not include detailed responses from Kalshi, crypto.com, Novig, or Underdog.
What players should watch
For consumers, the immediate takeaway is that access to prediction-market products can become a state-by-state legal issue even when operators argue they are allowed under federal rules. Missouri has not yet announced any additional action in the report, so the next thing to watch is whether the attorney general’s office or the Missouri Gaming Commission takes further enforcement steps.
The same report also included a responsible-gambling note from counselor Taylor Brown, who said the “damage and wreckage” from mismanaging money while gambling can be “astonishing” and far-reaching, especially for younger people at risk of addiction or money mismanagement.
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Source: As reported by KCTV5 News.
