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What is Book Of Shadows?
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.
Nearly a third of respondents told Fullstory that increased event contract breadth could compel them to consistently choose a prediction market over a sportsbook.
Sportsbook operators have an inherent advantage over prediction markets in that the former can offer significantly larger sign-up and retention bonuses and gaming companies are leaning into those expenditures this football season.
What is Book Of Shadows?
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.
About Book Of Shadows
Rovito has pleaded not guilty and is presumed innocent unless proven guilty in court. His attorney has disputed the government’s allegations, claiming that the indictment does not allege his client collected money, made any threats, or directed other defendants to do so.
The latest contribution is not the first time Rovito’s campaign donations to Grasso have attracted attention.
In 2017, Rovito donated $5,000 to Grasso’s unsuccessful campaign for Illinois attorney general. Grasso returned that money about a month later after a television station questioned the contribution, according to Patch.