A federal judge in Wisconsin ruled that the Ho-Chunk Nation is likely to succeed in blocking prediction-market operator Kalshi from offering sports event contracts on tribal land. The decision, the first of its kind against Kalshi under the Indian Gaming Regulatory Act (IGRA), marks a significant legal setback for the company.
The ruling and its basis
The judge found that Kalshi's sports event contracts likely constitute gambling under IGRA, which gives tribes exclusive authority to regulate gaming on their lands. The Ho-Chunk Nation argued that allowing Kalshi to operate these contracts would infringe on its sovereign rights and violate federal law. The court agreed, granting a preliminary injunction that stops Kalshi from offering the contracts while the case proceeds.
IGRA was designed to promote tribal economic development and self-sufficiency while protecting against organized crime. The ruling emphasizes that tribes hold the primary role in determining what forms of gaming are permitted on their reservations. The judge noted that Kalshi's contracts involve betting on outcomes of sporting events, which falls under Class III gaming—activities that require a tribal-state compact under IGRA.
Kalshi's position and the broader landscape
Kalshi operates an online platform where users trade contracts based on the outcome of real-world events, including sports, elections, and economic data. The company has argued that its products are not gambling but rather regulated financial derivatives. However, the Wisconsin court sided with the Ho-Chunk Nation's interpretation, marking a clear legal distinction between prediction markets and traditional financial instruments when they involve sports on tribal land.
This is the first time a federal court has ruled against Kalshi on IGRA grounds. The decision could influence other tribes considering similar challenges, as well as regulators weighing the boundaries of prediction markets. The Commodity Futures Trading Commission, which oversees Kalshi, has not yet taken a public position on the tribal land issue.
What happens next
The preliminary injunction is not a final ruling. The case will proceed to a full hearing where both sides will present evidence. The Ho-Chunk Nation is expected to seek a permanent ban, while Kalshi will likely argue that its contracts do not trigger IGRA because they are not traditional gambling. The outcome could set a precedent for how prediction markets interact with tribal gaming laws nationwide.
For now, Kalshi cannot offer sports event contracts to customers on Ho-Chunk land. The company may also face similar challenges from other tribes if it expands into additional jurisdictions. The court has not set a date for the next hearing, but the case is moving forward.
