Utah Attorney General Derek Brown's suit names Kalshi and Susquehanna firms, calls online gambling a public nuisance, and asks a judge to block operations in th

As more states challenge Kalshi's sports and election contracts, its co-founder says the regulatory clash over who governs prediction markets may end up before

The arrangement lets some clients post Bitcoin and Ethereum holdings as margin for perpetual futures without selling the underlying crypto.

The rollout marks a brokerage offering Kalshi-listed perpetual futures to US retail traders.

Volume data show the two prediction markets scaling sharply, with Kalshi crossing $4B twice in a week.

A report ties Kalshi's higher valuation to surging event-contract trading activity.

The FT reports venues are moving quickly to add event-contract products as demand grows.

State regulators allege the ad campaign breached a prior order restricting Kalshi's Michigan operations.

Investors pushed Polymarket's CEO to repay private-jet and rent spending and are seeking a COO as Kalshi pulls ahead.

Taiwanese authorities restricted access to the platforms citing concerns about election wagering.

Brennan Center research says traders were more accurate than pollsters and that voters want oversight of the venues.

New Jersey regulators issued responsible-gaming requirements while the state attorney general pursues Kalshi.

The jurisdictional battle pits federal commodity regulators against state gaming authorities.

The tribe is advancing a Kalshi-linked sports betting launch over objections from some members.

The regulator pointed to growing crypto futures activity in filings tied to its dispute over prediction market jurisdiction.

The comparison breaks down fees and execution costs between the two US prediction market venues.

The removal of a sensitive market drew scrutiny of celebrity promotion of prediction markets.

Contract prices on the French race rose as protests roiled the country.