Polymarket 美国平台名义交易量突破 7.5 亿美元，交易笔数超 500 万笔

CFTC Sues New York as 38 AGs Back Kalshi Enforcement

On Friday, the legal battle over prediction market regulation intensified on two fronts: 38 attorneys general (37 states plus the District of Columbia) filed an amicus brief in Massachusetts' Supreme Judicial Court supporting enforcement against Kalshi, while the U.S. Commodity Futures Trading Commi

CFTC sues New York State: Defend the federal exclusive jurisdiction over prediction markets

CFTC4/24 filed a lawsuit against the State of New York in the U.S. Federal Court for the Southern District of New York, arguing that the event contracts are subject to federal exclusive jurisdiction, and seeking a permanent injunction to stop state law from interfering with CFTC-registered entities. The core issue is field preemption; if they win, Polymarket, Kalshi, and others in the U.S. will have compliance and market positioning dominated by the federal framework, and the influence of state law will be weakened.

Brazil Bans Polymarket, Kalshi in Sweeping Prediction Market Crackdown

Brazil has enacted a sweeping ban on prediction markets and betting platforms, according to local media and government filings. The two leading prediction markets, Polymarket and Kalshi, were confirmed inaccessible to researchers based in the country. Finance Minister Dario Durigan stated that appro

Brazil Bans Leading Prediction Market Platforms in Sweeping Regulatory Crackdown

Gate News message, April 25 — Brazil's central bank has enacted a comprehensive ban on prediction market platforms, prohibiting major prediction markets and approximately 28 other betting platforms from operating in the country. The ban, outlined in a resolution by Banco Central do Brasil, cited non

Brazil fully bans 27 prediction market platforms such as Polymarket and Kalshi: the largest prediction market ban in emerging markets

The Brazilian government announced a comprehensive ban on 27 prediction market platforms (including Polymarket and Kalshi) on April 24, 2026, citing that they had not obtained licenses and did not comply with the current gambling laws, and that connections were blocked from that day onward. The new law only allows fixed-odds betting based on the results of in-person sporting events; event-based prediction contracts remain illegal. The central bank also added that the regulatory threshold for derivative transactions had not been met. This move has been seen as the first major negative case in the expansion of emerging markets worldwide, and in the future it may affect regulatory and cross-border compliance negotiations in places such as India, Indonesia, and Turkey.

Brazil Bans Polymarket, Kalshi Citing Investor Protections

Brazil has enacted a sweeping ban on prediction markets and betting platforms, according to local media and government filings. The two leading prediction markets, Polymarket and Kalshi, were inaccessible to researchers in the country. Finance Minister Dario Durigan stated that approximately 28 plat