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Kevin O’Neal, a DOCV board member, argued the scale of the investigation calls the GGL’s broader black market estimates into question. He cited the regulator’s 2025 activity report, which put the 2024 share at 23% (€547 million in gross gaming revenue), against Nielsen data suggesting a share of around 56%.

The trade body has long been critical over the discrepancy between channelisation estimates made by the regulator, and other independent reviewers.

The DOCV reinforced its calls for a unified federal licensing regime for online casino games and stronger enforcement mechanisms against illegal operators. 

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There are no SCOTUS-prediction market contracts currently on Kalshi but Polymarket lists a 41% probability that the court will accept an event contract case by 31 December.

A hearing before the Supreme Court would be the culmination of what has been the biggest sports betting-related development since PASPA. Perhaps no other issue has united gaming stakeholders from various companies, tribes, states and regulators.

Beginning with the US presidential elections in November 2024, when prediction markets catapulted into mainstream culture, their rise has been undeniable. Kalshi and Polymarket have seen their valuations balloon to $40 billion and $21 billion, respectively, and the majority of the top US bookmakers have scrambled to expand into the prediction space in various forms, either by building their own exchanges, acquiring existing ones or engaging in market-making.

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Vicki Scott, the DIA’s director of gambling, said the investigation had delivered significant results, while stressing that work to improve compliance and ensure communities received their share of gambling proceeds would continue.

“Most operators have worked constructively with us to address historical issues and improve their practices,” Scott said.

“While we’ve made substantial progress, our work is not finished. We’ll continue working with operators to recover funding for communities, improve compliance and maintain public confidence in the integrity of class 4 gambling.”