Why is Massachusetts suing Kalshi?

Kalshi is being sued because Massachusetts alleges the company offered sports event contracts without the required state gaming licence. The amended 71-page complaint also alleges Kalshi marketed its platform to people under 21 through university campus promotions and advertising.

What does the amended lawsuit against Kalshi include?

The amended lawsuit against Kalshi adds allegations that the platform targeted users under 21 and did not do enough to prevent them from using its services. Massachusetts also alleges the platform allows anyone aged 18 or older to trade sports event contracts.

How is the Commodity Futures Trading Commission involved in the Kalshi case?

The Commodity Futures Trading Commission (CFTC) argues that Kalshi's event contracts are commodity swaps regulated under the Commodity Exchange Act. The agency says prediction markets fall under federal oversight rather than state gaming laws.

What does the CLARITY Act have to do with Kalshi?

The CLARITY Act is a proposed US digital asset bill that could expand the Commodity Futures Trading Commission (CFTC)'s authority over digital assets. Gaming organisations have asked lawmakers to add language explicitly prohibiting sports and casino-related event contracts.

Image for illustrative purposes only. Not a real photo.

Massachusetts judge allows amended Kalshi lawsuit

Q: What does the Kalshi lawsuit mean for prediction markets?

The Kalshi lawsuit could help determine whether prediction markets are primarily regulated by federal commodities law or state gaming laws. The outcome may influence how similar platforms operate across the United States.

Written by Liezl GambePublished Jun 30, 2026, 11:52 PM

A Massachusetts judge allowed the state to file an amended lawsuit against Kalshi, adding allegations about sports betting and marketing to people under 21.
The ruling keeps the legal challenge active as Kalshi argues its prediction markets fall under federal regulation rather than state gaming laws.
The case could influence how prediction markets are regulated as Congress considers expanding the Commodity Futures Trading Commission's authority over digital assets.

Massachusetts Attorney General won approval to file an amended lawsuit against Kalshi, adding allegations that the prediction markets platform targeted users under 21 while offering sports event contracts without a state licence.

The 71-page amended complaint expands a lawsuit first filed in September 2025, after a judge issued a preliminary injunction in January preventing Kalshi from offering sports event contracts in Massachusetts during the case.

“Congress has entrusted the CFTC with the sole authority to regulate commodity derivatives markets, including prediction markets,” said Commodity Futures Trading Commission (CFTC) Chair Michael Selig.

Massachusetts alleges Kalshi permits anyone aged 18 or older to open an account and trade sports event contracts, while also claiming the company marketed its platform on university campuses and used advertising featuring people appearing to be under 21.

The legal dispute centres on whether prediction markets are regulated by federal commodities law or state gaming laws, and following the development there was no share price reaction because Kalshi is privately held.

The case is one of several legal disputes involving prediction markets, with the CFTC arguing that event contracts are swaps regulated under the Commodity Exchange Act and therefore fall within the agency's exclusive jurisdiction.

The dispute also comes as gaming organisations, tribal groups and labour unions urge US senators to amend the CLARITY Act to explicitly prohibit sports and casino-related event contracts as lawmakers consider broader digital asset legislation.