Jump Trading Poised to Gain Stakes in Kalshi and Polymarket

Jump Trading is set to gain small stakes in Kalshi Inc. and Polymarket in exchange for providing liquidity on the prediction-market platforms, according to people with knowledge of the matter.

The firm’s agreement with Kalshi is for a set amount of equity in the company, said the people, who asked not to be identified discussing confidential matters. The size of the stake in Polymarket will grow over time depending on how much trading capacity Jump provides to the exchange’s operation in the US, the people said.

The deals are a win for Jump, a proprietary trading firm founded in 1999 ...