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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.
Commercial sports betting generated just under $17 billion in nationwide revenue in 2025, which is why Davenport asserts that the “stakes of this case are exceptionally high”. Kalshi and Polymarket alone posted more than $45 billion in trading volume, which is similar but not identical to betting revenue, in August. That was a 15% decline from July, although that drop is attributed to the conclusion of the Fifa World Cup tournament that month per Yahoo! Finance.
The American Gaming Association estimates that the exchanges have siphoned more than $1.3 billion in would-be tax revenue from states. One of the AGA’s primary spokespeople pin its fight against prediction markets is former New Jersey governor Chris Christie, who championed the PASPA case to the Supreme Court.
How to play Only Coins
Shuffle does not hold a licence to operate in the UK.
Meanwhile, Stake continues to feature on the sleeve of Everton’s kits, despite ceasing operations in the UK in early 2025 amid a Gambling Commission investigation into its advertising.
Other clubs that hold agreements with unlicensed operators include Chelsea (8XBet), Tottenham Hotspur (VSBet) and Nottingham Forest (FUN88).
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The report rejected argumentswarning that advertising restrictions would drive consumers to illicit gambling sites. They citied weak evidence for mass migration to illegal operators following advertising limits.
“Interviews [ … ] with representatives of state monopoly operators across European jurisdictions consistently suggested that advertising restrictions did not lead to consumer migration towards illegal operators,” the report said.
This report arrived amid the UK government’s 2023 white paper on gambling reform, which introduced a statutory levy for funding research and treatment.
