FlightAware filed a lawsuit against Kalshi, accusing the company of using its data and name to create “gambling markets on flight cancellations” without authorization. The big picture: According to the complaint, Kalshi named FlightAware as the primary source for settling these markets, even though FlightAware did not approve the use of its data, name, or trademarks. State of play: Prediction markets like Kalshi and Polymarket have grown in popularity since the 2024 U.S. presidential election, which they successfully predicted. Kalshi and Polymarket allow users to bet on a wide range of events, from elections to international conflicts. What we’re watching: FlightAware is seeking unspecified damages, a court order to stop Kalshi’s use of its data and name, and has requested a jury trial.