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Over 150 Polymarket Wallets Linked to Likely Military Insider Trading, Study Finds

ACDC said 152 military and defense wallets made $8 million collectively and drew copycat bets from whales and bots, raising national security concerns.

  • On Thursday, the Anti-Corruption Data Collective reported that 152 Polymarket wallets likely traded on inside U.S. military information, collectively earning $8 million with a 97.2% win rate.
  • ACDC identified 556 wallets dubbed 'Orcas,' traders placing highly successful long-shot bets of at least $2,500 in niche markets where insiders possess informational advantages, typically cashing out quickly after winning.
  • Evidence suggests military 'Orca' trades attract copycat wagers from deep-pocketed 'Whales' and bots; when an 'Orca' bet on U.S. military action in Iran, copycat wagers reached $200,000 and $100,000 respectively.
  • ACDC argues simple identity verification is insufficient, advocating for banning markets where non-public information is most actionable, stating "Limiting the type of people who can bet on prediction markets or relying on law enforcement investigations … will not be enough."
  • Policymakers are increasing scrutiny following bets ahead of U.S. military actions, including a soldier charged for betting on Venezuela President Nicolas Maduro's removal, as the Commodity Futures Trading Commission pushes for stricter jurisdiction.
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115 "orcas" were identified, users who make high-stakes bets in which someone with access to insider information could have an advantage.

·Lisboa, Portugal
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Al-Monitor broke the news in Washington, United States on Thursday, August 20, 2026.
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