CFTC Sues Wisconsin Over Prediction Market Ban

The U.S. Commodity Futures Trading Commission (CFTC) filed a federal lawsuit against Wisconsin on Tuesday, directly challenging the state’s attempt to shut down prediction market platforms operating under CFTC oversight. Key Takeaways: The CFTC sued Wisconsin on April 28, 2026, defending Kalshi and Polymarket against state gambling law enforcement. Wisconsin AG Josh Kaul filed 3 … Read more

Buffett Lumps Prediction Markets With Sports Betting in ‘Tax on Stupidity’ Rebuke

Warren Buffett used his first sit-down interview since stepping down as Berkshire Hathaway CEO to bundle prediction markets, legalized sports betting, and day trading into a single critique, calling state-sponsored gambling a “tax on stupidity” that quietly subsidizes wealthy Americans – a take which is now receiving renewed attention on social media, having been originally … Read more

B3 to Launch Bitcoin-Linked Prediction Contracts as Brazil Bans Polymarket and Kalshi

Brazilian stock exchange B3 is launching six “Event Contracts” today, including instruments tied to bitcoin price movements. The country’s first federally regulated prediction market comes three days after the National Monetary Council prohibited derivatives based on sports, political, and entertainment events, while explicitly preserving the financial-asset category B3’s contracts fall under. Key Takeaways: B3 launches … Read more

Polymarket Study Finds 3.14% Drive Accuracy

A new academic study finds that prediction market accuracy on Polymarket comes from a small group of informed traders, not the broad crowd of participants the industry typically credits. Key Takeaways: Researchers from London Business School and Yale found only 3.14% of Polymarket accounts qualify as skilled, yet generate most price discovery. Skilled Polymarket traders … Read more

Federal Reserve Set to Hold Rates at 3.75% as Traders Price 99% Odds for April 29 FOMC

Prediction markets and CME futures traders have converged on one outcome ahead of the April 29 Federal Open Market Committee (FOMC) meeting: the Federal Reserve will hold rates steady, and likely will continue doing so well into the summer. Key Takeaways: CME Fedwatch puts a Fed hold at 99% for the April 29 FOMC meeting, … Read more

38 Attorneys General Back Massachusetts Lawsuit Against Kalshi Over Prediction Markets

State gambling enforcement against Kalshi is being challenged as 38 attorneys general back Massachusetts’ lawsuit. The case could shape whether states can enforce gambling licensing rules against event contracts. Key Takeaways: Coalition of 38 attorneys general supports Massachusetts lawsuit alleging Kalshi enables unlicensed sports betting activity. CFTC filing adds to the dispute as federal regulator … Read more

CFTC Charges Polymarket Trader in First Event Contract Insider Trading Case

CFTC insider trading charges against a U.S. Army service member escalate scrutiny of prediction markets. The case raises new legal and national security concerns around event contracts tied to government information. Key Takeaways: First CFTC action targets insider trading in event contracts. Insider trading charges show Army member used classified data to profit. Polymarket bets … Read more

New York Sues Coinbase and Gemini Over ‘Prediction Markets’

Law and Ledger is a news segment focusing on crypto legal news, brought to you by Kelman Law – A law firm focused on digital asset commerce. The following opinion editorial was written by Alex Forehand and Michael Handelsman for Kelman.Law. New York Sues Coinbase and Gemini New York has escalated its enforcement posture against … Read more

A Hair Dryer May Have Gamed a Paris Weather Sensor for $34,000 on Polymarket

Someone may have used a hair dryer near a Paris airport weather sensor to win $34,000 on the prediction market platform Polymarket, prompting France’s national meteorological service to file a criminal complaint. Key Takeaways: Météo France filed a complaint with Roissy airport gendarmerie after two CDG sensor anomalies on April 6 and April 15 aligned … Read more

Gensyn Network Debuts Delphi, a Permissionless AI Prediction Market Platform, on Mainnet

Gensyn officially launched Delphi on its mainnet on Wednesday, making it the first application to go live on the decentralized compute network and introducing real economic value to a platform that processed millions in test volume during its trial run. Key Takeaways: Gensyn launched Delphi on mainnet April 22, 2026, marking the network’s first live … Read more

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