Prediction markets under scrutiny

A burst of anonymous bets landed on Polymarket just minutes before President Donald Trump announced a United States-Iran ceasefire, and at least 50 of the accounts were brand new and made no other trades. One earlier trader also made roughly $550,000 betting on a United States strike on Iran and the removal of Ayatollah Ali Khamenei before events moved. (abcnews.com) That was not the first time. In January, an anonymous Polymarket user reportedly made about $400,000 by betting that Venezuelan leader Nicolás Maduro would be out of office just hours before he was captured. (abcnews.com) Prediction markets work like a running scoreboard for a yes-or-no question: traders buy contracts on outcomes such as an election result, a war ceasefire, or a leader leaving office. Kalshi and Polymarket both sell that kind of contract, but regulators and lawmakers disagree on whether that is a financial market, a gambling product, or both. (courthousenews.com (cbsnews.com) The latest trades turned a niche internet product into a Washington problem because the suspicion is not just lucky guessing. Representative Ritchie Torres sent a letter on April 9 asking the Commodity Futures Trading Commission to investigate whether traders used material nonpublic information before the ceasefire announcement. (abcnews.com) Two Democratic senators, Elizabeth Warren of Massachusetts and Sheldon Whitehouse of Rhode Island, sent their own letter on April 10 after a separate pattern in oil markets. They said traders placed an approximately $950 million bet on oil prices falling before Trump announced a two-week ceasefire with Iran, a move that sent oil down about 15 percent. (cnbc.com) The White House had already seen enough risk to warn its own staff. A March 24 email told staffers not to make prediction-market bets tied to the Iran war, and officials confirmed the warning after reports that government employees could use nonpublic information to trade. (cnbc.com) (newrepublic.com) Lawmakers are also attacking the contracts themselves, not just the timing of the trades. In an April 6 letter, seven House Democrats urged the Commodity Futures Trading Commission to tighten oversight after Polymarket briefly allowed wagers on whether two United States airmen shot down over Iran would be rescued by specific dates. (cbsnews.com) Polymarket said that rescue contract “slipped through” its safeguards and was removed, while both Polymarket and Kalshi have said they are strengthening controls against insider trading. The political pressure comes on top of a Harvard paper released last month that estimated $143 million in Polymarket profits may have come from traders with advance knowledge of real-world events. (cbsnews.com) (abcnews.com) At the same time, the legal fight is moving in the opposite direction in court. On April 10, United States District Judge Michael Liburdi temporarily barred Arizona from enforcing its gambling laws against prediction-market operators and paused the state’s criminal case against Kalshi, canceling a scheduled April 13 arraignment. (courthousenews.com) (finance.yahoo.com) Arizona says Kalshi is running an illegal wagering business and filed 20 misdemeanor counts on March 17 over contracts tied to elections, college sports, and player performance. The Commodity Futures Trading Commission and Kalshi say federal law gives Washington, not the states, the main authority over these event contracts. (courthousenews.com) (finance.yahoo.com) So the same week produced two opposite signals. Congress is asking whether these markets are becoming a pipeline for insider trading on war and government action, while a federal judge just gave one operator temporary protection from a state trying to treat the business like illegal betting. (abcnews.com) (finance.yahoo.com)