Anonymous Polymarket Trader Pocketed $300,000 Betting on Biden’s Final-Hour Pardons, Analysis Reveals

An anonymous trader on the cryptocurrency-based prediction market Polymarket reportedly earned roughly $300,000 by placing a series of precisely timed bets in the final hours of President Joe Biden’s term, wagering on specific individuals who would ultimately receive presidential pardons. The trades, made when market odds were near zero, have raised fresh questions about potential information asymmetry in rapidly expanding prediction markets.

According to a blockchain analysis of the trades, the unidentified trader began accumulating “Yes” shares on contracts tied to potential pardon recipients in the hours before Biden departed the White House on January 20. Because the markets assigned very low implied probabilities to many of the eventual recipients, each contract could be purchased for just a few cents and paid out at $1 per share once the pardons were announced. The trader reportedly concentrated bets on preemptive pardon markets involving members of Biden’s family — including his brothers James and Frank Biden, and his sister Valerie Biden Owens — as well as on markets covering figures such as Dr. Anthony Fauci and members of the January 6th committee, which included former Representative Liz Cheney and Representative Bennie Thompson.

The timing and precision of the wagers have fueled speculation that the trader may have had access to advance information, though no evidence of wrongdoing has been publicly identified. Unlike insider trading in traditional securities markets, which is policed by the Securities and Exchange Commission under Rule 10b-5, trading on nonpublic information in event-based prediction markets occupies a murkier legal space. The Commodity Futures Trading Commission regulates event contracts when they are offered domestically by designated contract markets, but Polymarket’s offshore status and crypto-based settlement place many of its users outside the agency’s direct enforcement reach.

Biden’s wave of last-minute clemency was itself historically unusual. Preemptive pardons — clemency issued before any charges are filed — have been invoked sparingly since President Gerald Ford pardoned Richard Nixon in 1974 and President Jimmy Carter granted blanket amnesty to Vietnam-era draft evaders in 1977. Biden’s expansive use of the tool, including shielding family members from potential prosecution by the incoming Trump administration, drew both praise as a defensive legal measure and criticism as an unprecedented expansion of executive clemency. Whether federal regulators, congressional investigators, or Polymarket itself will scrutinize the profitable wagers remains to be seen, but the episode underscores how the rise of decentralized prediction markets has created a new frontier where political information, legal gray zones, and financial incentives intersect in ways policymakers are only beginning to confront.