A compromised third-party vendor let attackers drain user wallets, forcing the exchange to halt international trading before restoring it and promising repaymen

The state's felony case escalates a multi-front fight over whether states or federal regulators govern prediction market event contracts.

The round led by Sequoia and Wellington values the prediction market at $40 billion as it expands into crypto and single-stock perpetual futures.

The federal regulator argues it has exclusive authority over event contracts, setting up a preemption showdown with state gambling enforcement.

Shares rose as the exchange reported prediction markets among its fastest-growing segments, offsetting a decline in crypto spot volume.

The agency's scrutiny signals that event contracts face securities-style oversight as volumes and election betting grow.

Polymarket briefly halted its international exchange and paused relayer actions after a compromised third-party vendor let attackers drain user wallets, with lo

Binance is investigating a separate large-scale security incident and said stablecoin issuers froze more than $2 billion in stolen funds as crypto markets react

The company is probing two markets tied to Tuesday's Israeli election after a cluster of newly created accounts placed wagers, raising insider trading questions

A bipartisan pair of senators is questioning the prediction market operators about how they police election wagers ahead of the US midterms.

The short-dated contracts mark Polymarket's expansion beyond crypto and elections into commodities, with equities and foreign exchange planned next.

The regulator is reexamining whether Polymarket breached the terms of its earlier settlement barring US users as a related VPN insider trading case heads to tri

The Utah attorney general filed 14 criminal counts against Kalshi and its co-founders, escalating a state-versus-federal fight over who can regulate prediction

The round, co-led by Wellington and Sequoia, values Kalshi at $40 billion as the company expands into crypto and stock perpetual futures and weighs a potential

The federal commodities regulator argues states cannot enforce gambling laws against CFTC-regulated event contracts, setting up a federalism clash over predicti

Kalshi's suit challenges Missouri's effort to shut down its sports event contracts, part of a widening multi-state legal battle.

Lawmakers are questioning the two prediction markets on election betting as midterm-related contracts draw regulatory scrutiny.

The platforms are seeing heavy volume on US Senate and other midterm races, drawing attention from regulators and lawmakers.

The federal-state conflict over prediction markets escalates as Utah pursues criminal charges against Kalshi while the CFTC sues the state, testing who regulate

Lawmakers are asking the two largest prediction markets how they police manipulation and protect election integrity ahead of the midterms.

Ohio becomes the latest state to weigh a blanket prohibition on wagering on elections, targeting Kalshi and Polymarket directly.

A late shift in Israel's vote left a large Polymarket position on Eisenkot worthless and prompted an internal review of unusual trading activity.

The valuation underscores how quickly prediction markets have grown into major financial venues ahead of the US midterms.

New research challenges the claim that prediction markets reliably forecast elections, finding accuracy degraded during primary season.

The round values the CFTC-regulated exchange at roughly $40 billion as it moves into perpetual futures on crypto and single stocks, positioning it against CME a

Prediction markets were the growth engine as crypto trading revenue collapsed, and Mizuho kept a $130 price target even as shares slid.

The suits test whether federal event-contract regulation preempts state gambling laws, with Missouri and Utah pushing back through their own orders.

The federal agency seeks to establish preemption over state gambling enforcement while Utah charged Kalshi's co-founders with felony gambling counts.

The league partnership gives the two platforms official standing in NBA markets and signals growing sports-league acceptance of regulated event contracts.

Record volumes on both venues underscore how much political and sports event contracts have grown into mainstream trading activity.

The suit tests whether federal derivatives law preempts state gambling bans as multiple states move against prediction market operators.

The criminal case marks an escalation in state-level enforcement against prediction market venues.

The operators are asking courts to affirm federal jurisdiction over their markets as state challenges multiply.

The Michigan Gaming Control Board secured the withdrawal, one of the first state wins over a prediction market operator.

The wallet integration extends Kalshi's US distribution days after the CFTC's Utah suit.

A major league tie-up signals sports organizations engaging with regulated event contracts amid legal uncertainty.