BLOOMBERG · 2026-11-02 12:02 UTC

LeBron, Jeter and Other Athletes Risk Reputations With Polymarket Ads

Prediction market platforms Polymarket, Kalshi, and Novig are running major celebrity advertising campaigns featuring LeBron James, Derek Jeter, Timothée Chalamet, and others to boost brand awareness. Only about 1 in 5 Americans are familiar with prediction markets, and nearly 40% of those aware view them as bad for society. The platforms face criticism over controversial markets, including $1.2 million wagered on 2025 Southern California wildfires that killed 31 people, prompting calls for regulatory bans.

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