Nevada Court Decision Forces Polymarket and Kalshi to Confront Trading Restrictions
Prediction market platforms encounter fresh regulatory challenges as the court decision compounds existing concerns regarding insider trading and unfair information access in event-based contracts.
Prediction-market operations in Nevada face heightened risk of suspension following a US federal court decision that returned a legal dispute involving Blockratize, Polymarket's parent entity, to the state court system.
According to a Monday court order, a federal judge dismissed claims that federal oversight through the Commodity Exchange Act (CEA) and the Commodity Futures Trading Commission (CFTC) completely overrides state gaming regulations when it comes to prediction markets.
The judicial determination established that the savings clause within the CEA does not entirely eliminate state regulatory authority, and the companies failed to demonstrate sufficient grounds to prevent Nevada's enforcement proceedings at this juncture.
This outcome enables the Nevada Gaming Control Board to move forward with its civil enforcement proceedings in state court, potentially seeking an injunction that would prevent Nevada residents from participating in event contracts provided by either Polymarket or Kalshi.
Following the court's decision, Blockratize, the parent entity of Polymarket, filed a motion requesting a temporary administrative stay of the remand order, as documented in the filing.
This type of legal motion represents an attempt to temporarily halt a court decision or enforcement proceeding and is typically viewed as an emergency protective measure.
Attorney warns prediction markets encounter increasing regulatory pressure following Nevada decision
The Nevada judgment arrives at a time when prediction market platforms are experiencing escalating pressure from state-level regulators, with Kalshi having engaged in legal battles with Nevada's gaming oversight body since 2025.
A federal judge on Tuesday similarly returned Nevada's civil enforcement proceeding against Kalshi to state court, leaving Kalshi vulnerable to an "imminent temporary restraining order" that would prohibit the platform from providing event contracts within state boundaries, based on a court filing reviewed by Daniel Wallach, an attorney specializing in sports betting and gaming law.
"The ruling could embolden other states to sue Kalshi in state court and seek injunctions to block event contracts, a strategy that has so far succeeded in every case brought," wrote Wallach, in a Tuesday X post.
Kalshi initiated legal action against the state of Nevada in March 2025 following receipt of a cease-and-desist directive requiring termination of all sports-related betting markets operating within Nevada's jurisdiction.
Nevertheless, in February, the US Court of Appeals for the Ninth Circuit rejected Kalshi's attempt to prevent Nevada's gaming regulator from pursuing enforcement action regarding its sports event contracts.
Questions about insider trading intensify regulatory examination
This legal confrontation is developing as prediction markets encounter increased examination regarding unfair information access and possible insider trading activities.
Wallets suspected of insider trading generated $1.2 million in profits by placing bets on the results of blockchain investigator ZachXBT's examination into Axiom, as Cointelegraph reported on Friday.
ZachXBT published the highly anticipated investigation on Thursday, making allegations that Axiom employee Broox Bauer and additional individuals had engaged in insider trading conduct since early 2025.
Questions surrounding insider trading initially gained prominence in January when a Polymarket account earned $400,000 in profits after placing a wager on a contract predicting Venezuelan President Nicholas Maduro's capture, with the bet placed mere hours before US military forces apprehended him during a military operation.
Previously in February, Israeli law enforcement arrested and charged two individuals suspected of leveraging confidential information concerning Israel's planned strike on Iran for insider trading purposes on Polymarket.