Sumo Spins

About Sumo Spins

Cleopatra is the latest and most prominent addition to the exhibit, which marks the opening of Caesars Palace on Aug. 5, 1966.

The artifacts also include a 1966 cocktail waitress uniform, a Cleopatra costume and headdresses from opening events, a Tom Jones show program from 1971, Caesars Palace Grand Prix posters, and an old high-stakes slot machine.

The statue now stands, bargeless, mounted on a red-striped pedestal flanked by golden sphinxes.

How to play Sumo Spins

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 Sumo Spins?

“We expect non-sports categories such as economics, politics, crypto, and entertainment to gain share over time,” says the analyst.

Prediction market operators are on legal losing streaks, confirming that Beynon is onto something when he says the regulatory environment is the biggest risk facing the industry.

“We continue to view regulation as the largest risk to prediction markets,” says the analyst. “While industry growth remains robust, adverse legal outcomes could materially impact sports contract availability and long-term adoption.”