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About Coin Chef
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.”
What is Coin Chef?
This latest operation forms part of an ongoing surge in Türkiye’s efforts to curb illegal betting throughout 2026.
Earlier this year, Turkish Interior Minister Mustafa Çiftçi called illegal betting a “scourge that corrupts society” and emphasised a move towards tougher enforcement.
According to Çiftçi, the rapid growth of digital payments and cryptocurrencies has transformed illegal betting into a major conduit for money laundering.
What is Coin Chef?
A contract purchased on Kalshi cannot simply be transferred and sold on Polymarket, even where the two markets appear to cover the same outcome. Each exchange may also define and resolve its contracts differently, creating an additional risk for firms trading across venues.
Liquidity can consequently become self-reinforcing. Market makers gravitate towards platforms offering dependable technology and substantial order flow, while their participation improves pricing and execution for consumers.
Sahil Patel, founder of competitive intelligence provider Aldrin AI, said those relationships help explain Kalshi’s position.
