Biggest Vault

About Biggest Vault

Retail betting diverged significantly from the wider market, with non-remote betting GGY falling 3.3% to £2.4 billion ($3.2 billion). The number of betting shops dropped for a 12th consecutive reporting period to 5,617 premises—a 3.6% annual decline (down 208 shops from March 2025).

Other retail sectors performed better. Bingo GGY increased 8.2% to £703.8 million ($941.8 million), while arcade GGY rose 10.7% to £800.1 million ($1.07 billion).

While the new figures underline the sheer scale of Britain’s regulated market, leading operator Entain is pressing the government for tougher action against black-market platforms.

What is Biggest Vault?

Genius founder and CEO Mark Locke this week touted Genius’ position as a provider of official data, settlement and integrity services to both traditional betting and predictions platforms.

“Through Legend and our wider media platform we help operators acquire the customers all of them are competing for,” he added in a personal LinkedIn post.

“That is why I see prediction markets as a net benefit for Genius. I believe they create more businesses to supply, more ways to monetise the same sports activity and more competition for the customers we help operators win,” Locke said.

What is Biggest Vault?

“Here’s an API. Bernard and 88 other people can market-make all these request-for-quotes (RFQs),” Marantelli says. “Some people might come in and just do esports because they’re esports experts. Others do everything. Some focus on same-game parlays. But it’s a sportsbook.”

The institutional layer is largely invisible to customers presented with a P2P proposition. Retail users may technically trade against one another, but the depth required by a mass-market product cannot be supplied by occasional customers alone. Professional firms must be prepared to quote continuously and commit substantial capital.

Marantelli says the London-based White Swan is a significant market maker on several secondary exchanges, accounting for as much as 40% of activity on some platforms. Its particular focus is the RFQ, parlay market.