Do prediction market bettors make anything better?

What It Covers

Planet Money traces how Kalshi, a prediction market platform, fought regulators to legalize betting on elections, sports, and world events by classifying wagers as futures contracts rather than gambling. The company now operates in all 50 states and projects a trillion-dollar industry within four years.

Key Questions Answered

• •Legal classification arbitrage: Kalshi secured federal legitimacy by convincing the CFTC to classify yes/no event bets as derivatives swaps rather than gambling. This regulatory framing bypasses state gambling laws entirely, allowing sports betting in all 50 states where dedicated sports gambling apps remain restricted — a strategy other sports betting companies are now openly copying.
• •Winning edge mechanics: Top Kalshi traders generate outsized returns through extreme research advantages. One trader earned over $40,000 predicting Time Magazine's Person of the Year by analyzing coverage frequency. Another flew to San Francisco and used a bird-sound listening device to time a Super Bowl national anthem rehearsal. Research depth, not luck, drives consistent profits.
• •Insider trading enforcement gap: The CFTC has roughly one-eighth the staff of the SEC, and prediction markets largely self-police under rules designed for simple grain futures. Suspiciously timed winning bets on events like Venezuela's Maduro capture and Iran strikes have surfaced, but tracing them takes weeks and rarely produces accountability under current oversight structures.
• •Engagement design vs. civic value: Kalshi's mention markets — where users bet on specific words a speaker will say — produce a slot-machine attention state that narrows focus to word-spotting rather than content comprehension. Traders submitted questions during a Federal Reserve Zoom meeting specifically to prompt officials to say words they had wagered on, directly attempting to manipulate outcomes.
• •Profitable traders acknowledge social harm: Evan Samet, who reports earning close to $100,000 monthly on Kalshi, states prediction markets generate no meaningful social value for most markets and that profits depend structurally on less-informed participants losing money. The accuracy improvement prediction markets provide over existing data sources is marginal, particularly for sports and entertainment categories dominating platform volume.