Kalshi’s open interest has approached $800 million, accounting for over 60% of the total open interest in prediction markets. At the beginning of this year, Kalshi’s open interest was approximately $300 million, growing by more than 160% in less than six months. In terms of open interest distribution, sports is Kalshi’s core segment, representing nearly half of total open interest. Next is politics; together, politics and sports account for approximately 75% of open interest. The crypto sector represents only about 2% of Kalshi’s open interest, ranking seventh—lower than entertainment and composite markets.