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Tim Miller, who resigned from the UK Gambling Commission earlier this year, has stepped down from the GREF board and has relinquished his role as treasurer.
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).
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However, some media industry observers have questioned whether trading activity can reliably stand in for broader public opinion. There are also concerns among critics over the growing links between news organizations and prediction platforms.
At the same time, prediction market operators are facing regulatory tussles in the US. State regulators are moving to shut down the firms under gambling laws. The companies say their contracts should be regulated at the federal level as derivatives.
However, the sector has grown substantially despite such disputes. Bernstein predicted in April that annual prediction market volume could reach $1 trillion by 2030. The research estimated volume was around $51 billion in 2025 and could grow to around $240 billion in 2026.
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The committee has advocated for applying a public health framework to gambling advertising regulation. It criticised the existing patchwork of self-regulation, noting the Advertising Standards Authority (ASA) codes, co-regulation for broadcasts and industry-led voluntary measures, were inadequate.
Instead, the report recommended that advertising regulation be placed on a statutory footing under the Gambling Commission.
This would grant the regulator enhanced powers to proactively enforce rules and restrict problematic advertising channels effectively.