40 King

What is 40 King?

The timing is significant. The illegal gambling market is attracting growing attention from regulators and the wider industry, while estimates of its size vary considerably depending on definitions and methodology.

A recent Fincord Intelligence report highlighted by the Betting and Gaming Council estimated that illegal online gambling generated around $50 billion in gross revenue globally in 2025. It estimated that around 5,000 operator structures were using more than 15,000 websites and apps.

Other estimates are considerably higher, illustrating how difficult the market is to measure. As an example, separate research from Gaming Compliance International put the value of unregulated online gambling at $5.9 trillion in wagering value in 2025, while estimating that unregulated operators accounted for 78% of global online gaming GGR.

What is 40 King?

While sports event contracts are currently the tentpole category for the prediction market industry, data indicate bettors and traders are embracing other categories.

Fullstory points out that while 62% of consumers have dabbled in sports event contracts, 42% traded economic or financial derivatives on a prediction market while a comparable percentage transacted in an election or political event contract. More than a quarter traded at least one entertainment or pop culture derivative.

That widening breadth is vital for the industry at a time when some analysts estimate volume could jump to $10 trillion by 2035 – a projection that is largely rooted in other categories surpassing sports for the top spot.  

What is 40 King?

David, at the time, said she was “optimistic but prudent” about Entain’s Q1 performance.  

Numbers have remained steady a year on, and in H1 this year, various markets were hailed as core growth drivers for the business, including Australia, New Zealand, Spain and the UK.

Meanwhile, cost-saving efforts have seen retail shops and operational roles cut this year. And the group has chosen to exit its CEE business and sell off a significant share.