Bet on Anything, Everywhere, All at Once

What It Covers

NPR correspondent Bobby Allen examines the rapid expansion of prediction markets, specifically Kalshi and Polymarket, tracing their origins from a 1988 Iowa academic experiment to over 400,000 active betting markets today, covering elections, sports, weather, and real-time political speech under the Trump administration's deregulatory approach.

Key Questions Answered

• •Market growth trajectory: The number of available prediction markets exploded from 15–20 during the Biden administration to over 400,000 today, driven by a 2024 federal appeals court ruling that allowed election betting and the Trump administration installing CFTC chair Michael Sellig, a vocal industry supporter who actively defends these platforms against state-level lawsuits.
• •Who actually profits: Full-time traders like 25-year-old Logan Suddath, who logs roughly 100 hours per week monitoring global press conferences and live events, represent the winning minority. Outside analyses of both Kalshi and Polymarket confirm most users lose money, mirroring casino outcomes, making sustained profitability dependent on obsessive specialization and near-constant platform engagement.
• •Insider trading risk is real and self-policed: By law, insider trading on these platforms is illegal, but enforcement falls almost entirely on the companies themselves rather than federal regulators. A MrBeast video editor was caught betting on unreleased content and was banned and fined by Kalshi internally. A separate Polymarket bet of $32,000 on the Maduro operation returned $400,000, raising national security concerns.
• •Regulatory gap creates consumer protection failures: Unlike licensed gambling operations, Kalshi and Polymarket set their minimum age at 18 rather than 21, and do not offer self-exclusion tools for problem gamblers. The CFTC, which oversees these platforms as commodity derivatives, operates with roughly one-sixth the staff of the SEC, making comprehensive oversight of 400,000-plus markets functionally impossible.
• •The "not gambling" legal argument has financial stakes: Kalshi and Polymarket argue they differ from sportsbooks because users bet against each other rather than a house. This classification matters enormously: being legally defined as gambling would trigger state gaming commission oversight, tribal regulations, and significant tax obligations across multiple jurisdictions, creating the primary financial incentive behind their regulatory positioning.