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What is Reactor?
The 2026 World Cup was therefore the culmination of five years of development that had embedded AI throughout Kambi’s trading operations.
“In simple terms, what we have undertaken is a shift from machine-assisted human trading to human-assisted machine trading,” Lamb explains.
The shift means that rather than spending their time pricing and managing established markets, traders can now apply their expertise where human judgement has the greatest value, including developing and testing new products. AI removes many of the practical limits on what can be offered and priced, and manages the resulting scale and complexity. The result is greater efficiency for Kambi and a better service for its partners and their customers.
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However, due to its role as a a state-owned bank, and ongoing scrutiny around betting in Brazil, Caixa has come under political pressure, and its launch in the market has been postponed on several occasions despite it having paid the BRL30 million ($5.9 million) licence fee.
In April, under pressure from Brazil’s President Luiz Inácio Lula da Silva, Caixa postponed its launch until 2027 at the earliest.
Brazil is currently gearing up for a general election next month and Weizer said this had delayed Playtech’s launch in the regulated market, although he didn’t specifically name Caixa as its client.
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Based on its projections, EKG sees the overall sports wagering industry growing 8% year-over-year, outpacing the current baseline growth rate of 5% (a figure that strips out temporary boosts from the 2026 World Cup).
Assuming that 8% spurt is realized, it’d be impressive because since the end of the 2025 football season, only Missouri and Alberta, Canada joined the live and legal sports betting party with Arkansas opening to DraftKings and FanDuel earlier this year.
Prediction markets have proven effective at attracting sharp bettors and high-rollers who are often limited or banned by traditional sportsbooks. However, consumer surveys indicate that when given the choice between a sportsbook and a yes/no exchange, most recreational bettors still prefer the traditional sportsbook interface. That dynamic helps explain why prediction markets remain in second place.