Regulators tighten markets

A market that lets you bet on “Will this happen?” is now getting the same kind of scrutiny as a stock exchange, and two regulators moved within weeks of each other to prove it. On March 20, 2026, the Securities and Exchange Commission froze a new Chicago Board Options Exchange rule on disruptive trading, and on February 25, 2026, the Commodity Futures Trading Commission warned that insider trading law reaches prediction markets too. (sec.gov) (cftc.gov) Prediction markets sell simple event contracts, usually a yes-or-no position on things like elections, sports, or economic data. The price moves between $0 and $1, so a 63-cent contract reads like a crowd saying there is about a 63% chance the event happens. (apnews.com) (nydailynews.com) Those markets stopped being a niche internet toy when volume exploded around the 2024 United States election and then kept growing into 2025 and 2026. Politico described the business two weeks ago as a once-obscure corner of finance that “boomed in popularity over the past year,” and Bloomberg reported in October 2025 that combined volume on Kalshi and Polymarket had already pushed past the previous election peak. (politico.com) (bloomberg.com) The compliance problem is straightforward: if you know the outcome before the public does, a yes-or-no market is easy to exploit. A campaign aide, a video editor, a corporate employee, or a government official can all sit closer to the answer than ordinary traders. (mofo.com) (news.bloomberglaw.com) The Commodity Futures Trading Commission did not speak in hypotheticals. Its February 25, 2026 advisory said Kalshi had already handled one 2025 case involving a political candidate who traded on his own candidacy and another involving a YouTube editor who likely knew video contents before they were posted. (cftc.gov) Kalshi penalized the candidate $2,246.36 and suspended access for five years. It penalized the editor $20,397.58 and suspended access for two years after concluding there was a reasonable basis to believe the trades used material nonpublic information. (cftc.gov) That matters because prediction markets do not fit neatly inside old insider-trading boxes built for stocks and bonds. Morrison Foerster wrote on March 3, 2026 that these contracts may not be “securities,” but federal prosecutors and regulators are still signaling that fraud, manipulation, and misuse of confidential information can bring enforcement. (mofo.com) At the same time, the Securities and Exchange Commission is showing it does not want exchanges writing broad conduct rules on autopilot. Cboe filed proposed Rule 8.23 on January 20, 2026 to codify that certain disruptive order entry, quote entry, and trading activity is prohibited, and it used a fast-track process that normally lets less controversial rules take effect immediately. (sec.gov 1) (sec.gov 2) The Securities and Exchange Commission then stepped in and suspended that immediate effectiveness on March 20, 2026 while opening formal proceedings to decide whether to approve or disapprove the rule. The agency’s order says the proposal covers conduct Cboe considers disruptive, but the pause means the Commission wants a closer look before that language becomes settled exchange law. (sec.gov) Put those two moves together and the message is concrete. In one lane, regulators are telling traders that “novel” event contracts are not a free pass for insider trading, and in the other, they are telling exchanges that anti-disruption rules still need full scrutiny before they reshape market behavior. (cftc.gov) (sec.gov) For funds and quantitative trading shops, that means more surveillance around who knows what, when they knew it, and how an order pattern will look after the fact. The old boundary between “information market” and “regulated market” is getting thinner, and Washington is drawing that line with actual cases, actual penalties, and actual rule reviews. (news.bloomberglaw.com) (mofo.com)