The Billion-Dollar Bet

By J F Sachs

The Billion-Dollar Bet: How Shayne Coplan Built Polymarket and Changed Prediction Markets Forever

The inside story of the most controversial startup of the 2020s, a crypto prediction market that called the election, minted a billionaire, and attracted an FBI raid.

On November 13, 2024, FBI agents raided the Manhattan apartment of Shayne Coplan, seizing phones and computers from the 26-year-old CEO of Polymarket. Just one week earlier, his prediction market platform had stunned the world by accurately forecasting Donald Trump's presidential victory while traditional polls predicted a toss-up. Now, the youngest self-made billionaire in America faced potential criminal charges for the very innovation that had made him famous.

The Billion-Dollar Bet tells the extraordinary story of how Coplan built Polymarket from a dorm-room idea into a platform processing billions in bets and how he became the most visible test case for whether prediction markets represent the future of forecasting or a dangerous experiment in unregulated gambling.

The Battle for the Future

As Polymarket faces existential legal threats, its story becomes a proxy battle for larger conflicts: crypto versus traditional finance, innovation versus regulation, decentralization versus control, and new sources of truth versus established authority.

The outcome will determine whether prediction markets become mainstream infrastructure for decision-making or remain forever controversial. Whether Shayne Coplan is remembered as a visionary who revolutionized forecasting or a cautionary tale about the dangers of moving too fast in regulated spaces.

• Format: Paperback
• Language: English
• ISBN: B0FXJDR1S3
• ISBN13: 9798232316136
• Release Date: October 2025
• Publisher: J.F. Publishing
• Length: 410 Pages
• Weight: 1.04 lbs.
• Dimensions: 0.8" x 5.5" x 8.5"