Volcano

How to play Volcano

The sanctions, effective from 28 August 2026 , bar Santos from any direct or indirect trading access on Kalshi.

Earlier this year, fellow prediction market platform Polymarket also ended its paid relationship with Santos amid a Department of Justice investigation over whether he had placed a wager on his appearance at the same State of Union address. 

A federal judge sentenced Santos to 87 months in prison last April on felony wire fraud and check fraud charges. After Santos served several months in 2025, US President Donald Trump granted the former congressman clemency, resulting in his immediate release. 

About Volcano

In January, Polymarket and Dow Jones announced an agreement that paved the way for event contract data to appear on various Dow Jones sites, including The Wall Street Journal. Dow Jones also owns Barron’s, Investor’s Business Daily and MarketWatch, among other media properties.

Polymarket also has marketing deals with Major League Baseball (MLB), Major League Soccer (MLS), the NHL and UFC.

While the Polymarket/Yahoo Finance situation is one of the earliest examples of a severed relationship between a prediction market operator and a media entity, that doesn’t mean those “divorces” will permeate the two industries.

What is Volcano?

Miller served on the forum for several years and was a key UK figure during a period when the Gambling Commission implemented extensive reforms to online gambling regulation and affordability checks. GREF expressed its gratitude for Miller’s contributions during his tenure.

Jean-Michel Costes has also left the board after concluding his role at France’s Autorité Nationale des Jeux (ANJ). 

Costes was involved with GREF at a time when numerous European regulators, including the ANJ, focused on tightening advertising regulations and boosting player protection frameworks. The forum thanked Costes for his dedicated service.