Kalshi Launches $1 Billion NCAA March Madness Bracket Challenge

Kalshi is a prediction market regulated by the U.S. Commodity Futures Trading Commission that allows users to trade contracts on event outcomes. The company argues that its products are financial swaps, while Michigan considers its sports contracts to be unlicensed online gambling. The dispute centers on whether federal financial regulation can preempt state gambling laws and also raises questions about consumer protection and gambling tax revenue.

On June 29, 2026, Ingham County Circuit Court Judge Rosemarie Aquilina granted Michigan Attorney General Dana Nessel's request for a 14-day temporary restraining order barring Kalshi from offering or promoting sports contracts to people in the state. The platform must use third-party geolocation technology that complies with state rules to block users. Violations carry a fine of $120,000 per day, and the order was originally set to remain in effect through July 13.

Kalshi is a prediction-market platform regulated by the U.S. Commodity Futures Trading Commission (CFTC) that allows users to trade contracts based on sporting-event outcomes. Illinois has subjected such products to state sports-betting restrictions, sparking a dispute over whether federal derivatives oversight preempts state intervention. The outcome could also affect how prediction markets operate across states.

Kalshi recently sued Illinois officials to challenge a provision in the state's newly enacted budget bill that is scheduled to take effect on July 1. The company argues that restrictions on sporting-event contracts encroach on the CFTC's exclusive regulatory authority. It is seeking to block enforcement, saying the provision would immediately restrict its products and cause irreparable harm that monetary damages could not adequately remedy.

Kalshi is a prediction market regulated by the U.S. Commodity Futures Trading Commission (CFTC), allowing users to trade contracts on the outcomes of political, economic and sporting events. Its regulated status has helped it tap demand for sports betting, while both revenue and valuation have climbed. Its potential listing has also become an important gauge of prediction markets' move into mainstream finance.

As of July 2026, Kalshi's annualized revenue had surpassed $2 billion, about three times its level at the end of 2025, driven mainly by trading tied to sporting events including the NBA and World Cup. The company's valuation also doubled within six months to $22 billion. It has reportedly begun early, informal IPO talks with investment banks but has yet to announce a listing timetable.