Marketplace
Marketplace

The crackdown on prediction market insider trading

April 7, 2026

AI Summary

5 min read

🎙️ The Voices & The Context

  • The Format: This is a classic daily news podcast (Marketplace) hosted by the iconic Kai Ryssdal. It’s a mix of hard data analysis, expert interviews, and feature reporting, all delivered with a sharp, slightly wry tone.
  • The Key Players:
    • Kai Ryssdal (Host): The anchor. He’s the calm, authoritative voice connecting the dots between inflation, geopolitics, and everyday life. He has a knack for asking the smart, clarifying question.
    • Edward Fishman (Guest): A foreign policy expert from the Council on Foreign Relations. He’s the star of the show today, providing a masterclass on the "petrodollar" system and why Iran’s actions in the Strait of Hormuz are a massive deal.
    • Megan McCarty Carino (Reporter): She delivers a wonderfully nerdy deep dive into prediction markets, using the 1983 movie Trading Places as a perfect hook.
  • The Vibe: Educational and Urgent. The tone is serious because the topics (war, inflation, the dollar’s future) are serious. But it’s not dry; it’s filled with fascinating "aha!" moments and clever cultural references that keep it engaging.

🗝️ Key Themes & Topics

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What you'll learn

  • 1 (00:00) **Introduction: Kai Rizdal & Today's Focus on Inflation**
  • 2 (02:04) **Consumer Inflation Expectations Rise**
  • 3 (04:42) **The Petrodollar System and the Strait of Hormuz**
  • 4 (10:27) **Insider Trading and Prediction Markets**
  • 5 (16:01) **Market Numbers and Corporate News**
  • 6 (20:05) **Durable Goods Orders Signal Slowdown**
  • 7 (22:53) **Relieving Airport Congestion with Smaller Hubs**

+ Full timestamped outline available in the app

Show Notes

Laws prohibiting insider trading in commodities markets — which could be applied to prediction market platforms like Kalshi and Polymarket — are more recent and untested than you might think. In this episode, we dig into two conflicting viewpoints: prediction markets as forecasting tools and prediction markets as regulated betting platforms. Plus: Durable goods orders continue a downward trend, the air travel industry weighs the role of small airports, and consumer inflation expectations rise.


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