Joker Split

About Joker Split

Strip away the language of contracts, order books and event trading and Bernard Marantelli has a blunt description of what is happening inside US sports prediction markets. “Kalshi is a sportsbook that’s just not allowed to have an in-house risk team,” says the founder of White Swan Data, one of the specialist firms now making markets on prediction exchanges.

The difference is all about the risk function. A sportsbook employs traders to price bets and manage its exposure. An exchange provides an API through which firms compete to quote prices and supply liquidity.

“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.”

How to play Joker Split

Following an extended three-day holiday for Labor Day Weekend, Polymarket went live with a colourful 90-second spot directed by award-winning filmmaker Peter Berg, the director of the acclaimed television series Friday Night Lights. The spot, which featured the likes of Eli Manning, Derek Jeter, Richard Sherman, John Leguizamo and Spike Lee, among other celebrities, coincided with the launch of Squads, a new social experience within the US Polymarket app.  

According to a Polymarket news release, the new initiative will give users a dedicated place to talk markets, share their picks and trade together directly on Polymarket.

“People are constantly debating what’s going to happen next with their friends and sharing predictions in group chats,” said Travis VanderZanden, who serves as chief growth officer at Polymarket. “With Squads, we’re bringing the conversation and trading together so friends can follow the events they care about and make their predictions in one place.”

How to play Joker Split

Former US congressman George Santos has been permanently prohibited from trading on the prediction market Kalshi, the company announced late last week. 

Friday’s announcement followed an investigation that found he manipulated contract prices linked to his anticipated attendance at the 2026 State of the Union address.

He was also fined $71,356.