Kalshi co-founder and CEO Tarek Mansour said the company has filed regulatory documents seeking to introduce margin trading for some long-term prediction markets. The mechanism would not apply to categories such as sports and culture.

According to Foresight News, Mansour said the move is Kalshi's most important step toward institutional adoption. He said capital efficiency has been the biggest barrier to institutional participation, and margin trading is one of the most requested features. He added that fully collateralized long-term contracts can tie up significant capital for months or even years.

Under the proposal, margin would apply only to a limited number of categories, mainly for institutions and subject to strict access requirements. The risk model would use methods long employed by mature clearinghouses and include conservative safeguards for volatility, liquidity, concentration, and event risk. It would also include a mechanism to prevent margin requirements from rising sharply during periods of heavy market volatility.