Kalshi CEO Compares Prediction Market Insider Trading Risks to Wall Street Rules

Kalshi CEO Tarek Mansour used a recent sit-down with lawyer Max Raskin, published in the Washington Post this past Sunday, to push back on what he described as the most common critique leveled at prediction markets, namely that they open the door to insider trading.  

Rather than dismissing the concern outright, Mansour turned it around, telling Raskin that insider trading is a larger concern on traditional stock markets than on the best prediction markets.

The distinction matters because it reframes a criticism usually aimed squarely at Kalshi and its competitors. Stock exchanges handle the retirement savings, pension funds, and long-term holdings of millions of Americans who are not actively trading day to day, so when someone profits off nonpublic information there, the cost lands on a broad and largely passive investor base. 

"The stock market is hard because you may have a piece of information, like a certain product is going to be released, and then you buy the stock. It's very broad," Mansour said. 

Event contracts on Kalshi work differently. Every trade is bounded, short-lived, and tied to a specific outcome, and the money at stake moves between active participants who chose to enter that market in the first place, rather than being drawn from a wider pool of people relying on the market to grow their savings over decades. 

Mansour has made similar arguments before, insisting that Kalshi's compliance rules mirror those used by the New York Stock Exchange and Nasdaq. He has further stated that trading on material nonpublic information is treated internally as a financial crime regardless of the market on which it occurs. 

Senate Democrats push back against CFTC lawsuits

That call for stronger federal oversight sits alongside a separate fight in Washington over who actually gets to police these platforms.  

A group of Senate Democrats sent a letter urging the Senate Appropriations Subcommittee on Financial Services and General Government to stop the Commodity Futures Trading Commission (CFTC) from spending federal money to block states and tribes from enforcing their own gambling laws against prediction markets. 

The senators, including Adam Schiff and Alex Padilla of California, along with Richard Blumenthal of Connecticut and Jeff Merkley of Oregon, argued that the CFTC's recent lawsuits against states amount to litigation and intimidation that could worsen a gambling-related public health problem. They would simultaneously undermine the authority that states and tribal governments have historically held over gambling regulation. 

According to the letter, the CFTC has sued Arizona, Connecticut, Illinois, Minnesota, New Mexico, New York, Rhode Island, and Wisconsin for trying to apply gambling statutes to online prediction markets. The senators also contended that prediction markets have moved far beyond the original purpose of event contracts, which were historically used to hedge agricultural and economic risk, and now resemble sports and political betting.