Totally Hot

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In fact, behind those brands, a whole new sector is taking shape. Data and streaming suppliers, specialist market makers and technology companies are quickly invading the space.

The investment banking and capital markets firm Jefferies said in a September report that sports had become prediction markets’ “most important liquidity driver”, with combo and parlay-style contracts accounting for an increasing share of activity. But the analysts cautioned that prediction markets are scale businesses with relatively low revenue yields, leaving their economics dependent on sustained liquidity, engagement and trading activity.

James Monk, founder of sports data and streaming provider Catalist Sports, has witnessed that dependence directly. Catalist supplies ITF tennis data to Kalshi and Polymarket and has an exclusive US sports-streaming agreement with Kalshi.

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While Polymarket pulled off a coup with the signings of James, Eli Manning and Derek Jeter, a Novig ad featuring Sweeney arguably received as much fanfare. Sweeney, an Emmy Award-nominated actress known for her role in HBO’s Euphoria series, stars in the spot titled “Just Sports.” As of Friday afternoon, the Novig post on social media platform X received at least nine million views.

Throughout the ad, Novig throws shade on its rivals for offering niche markets on events such as the timeframe for when traders believe that Venezuelan President Nicolás Maduro will be removed from office. Unlike operators such as Kalshi and Polymarket, Novig has opted to limit its offerings to purely sports. “No betting on wars, or deaths…or politics,” Sweeney mused.

During the 2025-26 NBA season, Kalshi made waves by granting an equity stake to two-time league MVP Giannis Antetokounmpo. According to the Wall Street Journal, Sweeney’s representatives approached Novig to express interest as a potential investor. Eventually, the company granted her an undisclosed amount in equity. The increased role of celebrity endorsements in the space is a trend that will likely receive closer observation in the coming months.

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Two blockbuster developments in the casino space earlier this year seemed to indicate an increasingly bullish bet on the sector, including Fertitta Entertainment’s acquisition of Caesars Entertainment in May. The other is a subsequent takeover offer of MGM Resorts from its largest shareholder, Barry Diller’s People Inc. But a negative shift in market conditions could affect both deals.

In July, Fertitta’s General Counsel Steven Scheinthal told the Nevada Gaming Control Board that the company had a letter of intent from banks to finance the transaction but was waiting for better borrowing conditions. Fertitta is assuming nearly $12 billion in Caesars’ debt and is committed to a $6.6 billion financing package.

“Our hope is that in the next few months there will be a window of opportunity where the market will be hotter and [it’s] a more interest rate friendly environment where we can go raise the money and then just put it in an escrow account,” Scheinthal said at the time.