Key Takeaways
- Five prominent trading and cryptocurrency platforms are facing legal action from Wisconsin for allegedly operating illegal gambling operations
- Attorney General Josh Kaul filed three distinct legal complaints against Kalshi, Robinhood, Coinbase, Polymarket, and Crypto.com
- Wisconsin contends that these “event contracts” constitute illegal wagers rather than legitimate financial products
- The companies stand accused of conducting operations without proper gambling licensure, with transaction fees likened to casino house advantages
- Legal experts anticipate this jurisdictional battle may eventually reach the nation’s highest court
On Thursday, Wisconsin’s top legal officer Josh Kaul initiated legal proceedings against five prominent financial technology and cryptocurrency companies, claiming they’re conducting unauthorized gambling activities within state borders.
The defendants include Kalshi, Coinbase, Polymarket, Robinhood, and Crypto.com. The state submitted three distinct legal filings in Dane County, each focusing on different segments of the prediction market industry.
The initial filing names Crypto.com alongside its derivatives division. A second complaint targets Polymarket and associated companies. The third encompasses Kalshi, Robinhood, and Coinbase—the latter two facilitate prediction market transactions through Kalshi’s infrastructure.
Wisconsin’s legal theory is straightforward. State prosecutors argue these platforms enable users to pay money for positions on real-world events, receiving predetermined payouts for correct predictions. According to Wisconsin statutes, this activity qualifies as gambling.
“Thinly disguising unlawful conduct doesn’t make it lawful,” Attorney General Kaul said in a press release.
The legal filings cite concrete examples. One case involves contracts linked to NCAA basketball tournament outcomes, offering $1 payouts for winning positions while losing positions yielded nothing.
State attorneys also referenced the companies’ promotional materials. Kalshi’s Instagram campaigns promoted the service as “The First Nationwide Legal Sports Betting Platform.” Polymarket marketed itself as “a platform where people can bet on the outcome of future events.”
Wisconsin further contends that collecting transaction fees on contracts mirrors casinos extracting percentages from wagers placed at their establishments.
Jurisdictional Conflict: Federal Versus State Authority
The targeted platforms counter by citing federal regulatory approval. Kalshi maintains its contracts qualify as swaps listed through a regulated exchange, placing them exclusively under Commodity Futures Trading Commission authority.
In recent weeks, the Third Circuit Court ruled favorably for Kalshi, interpreting the CFTC’s non-intervention as effectively resolving jurisdictional matters in the platform’s favor.
However, state-level courts have reached opposing conclusions. Nevada characterized the contracts as “indistinguishable” from traditional gambling. New York’s Attorney General Letitia James declared that “each contract is a bet.”
Expanding State-Level Opposition
Wisconsin joins a growing coalition of states challenging prediction market operators. Several jurisdictions have now initiated legal proceedings against these platforms, each constructing legal arguments around an identical fundamental question.
The pivotal issue concerns whether labeling a product as a financial instrument sufficiently exempts it from state gambling regulations.
This question remains legally unsettled. Industry analysts and legal scholars anticipate the jurisdictional conflict between state gambling authorities and the CFTC will ultimately require U.S. Supreme Court intervention.
Currently, the five companies identified in Wisconsin’s legal actions face ongoing litigation within the state, while broader regulatory clarity for the prediction market sector remains uncertain.


