Prediction markets like <a href="https://www.wsj.com/finance/regulation/polymarket-prediction-markets-kalshi-dd4702d6?mod=WSJ_TJPOD">Polymarket</a> and Kalshi are booming, but they’re facing questions about users betting on<a href="https://www.wsj.com/world/middle-east/israeli-soldiers-accused-of-using-polymarket-to-bet-on-strikes-72d53012?mod=WSJ_TJPOD"> information that is not publicly available</a>, from Super Bowl performances to <a href="https://www.wsj.com/world/americas/maduro-polymarket-bet-a2e5d100?mod=WSJ_TJPOD">geopolitical crises</a>. Advocates for the platforms say they are "truth machines" but critics say they’re a new vehicle for insider trading. WSJ’s <a href="https://www.wsj.com/news/author/caitlin-ostroff?mod=WSJ_TJPOD">Caitlin Ostroff</a> explains how users are making fortunes, and why regulators are starting to take notice. <a href="https://www.wsj.com/news/author/ryan-knutson?mod=WSJ_TJPOD">Ryan Knutson</a> hosts.
Further Listening: 
- <a href="https://open.spotify.com/episode/0j9EQX4IPFcTDLfSmybU2Q">How ‘The Joker’ Rigged the Texas Lottery</a>
- <a href="https://open.spotify.com/episode/0YogSP44SKlyVlDsEKBY8E">How Parlays Became the Biggest Bet in Sports</a>Sign up for WSJ’s free <a href="https://www.wsj.com/newsletters/whats-news?mod=WSJ_TJPOD">What’s News newsletter</a>.
 Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

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