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About Diamond Doggies
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.”
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Kelley also cited improvements at Robinhood as a possible factor for the regression at Kalshi. Just before the NFL season, Robinhood took a minority stake in Crypto.com and struck a deal to begin routing NFL contracts to OG.com, the site’s regulated prediction market platform.
A 40% weekly increase at Crypto.com combined with the attrition at Kalshi may reflect the enormity of the Robinhood deal, according to Kelley.
With all activity, beyond just football, Crypto.com recorded trading volume of $350 million for the week, figures from The PM Pulse show. The newsletter, which is in partnership with Aldrin Research for monitoring industry trends, indicated that Crypto saw weekly growth of 41%. While Kalshi and Polymarket accounted for more than $15 billion in weekly volume, four others recorded activity of at least $300 million. Buoyed by a popular Sydney Sweeney ad, Novig increased volume by nearly 34% on the week.
What is Diamond Doggies?
Shakhtar Donetsk vs. Maccabi Tel-Aviv (Agg 2-0) (5.55pm GMT kick-off)
Hoffenheim vs. Molde (Agg 3-3) (5.55pm GMT kick-off)
Villarreal vs. Red Bull Salzburg (Agg 2-0) (5.55pm GMT kick-off)
