In the lead-up to a recent US attack on Iran, a group of users on the prediction market platform Polymarket placed unusually large and strategic bets that resulted in substantial profits totaling $330,000 (approximately R$ 1.7 billion). Twelve suspicious accounts were identified as responsible for these bets, with approximately $66,993 wagered on the likelihood of an attack occurring before Saturday, with about half of these bets being placed just six hours prior to the event.

Market experts, including Matt Saincome, CEO of the financial data provider Unusual Whales, highlighted the significance of large single bets placed by new accounts, suggesting a potential insider knowledge factor at play. While large bets can sometimes lead to losses, the timing and amount of these wagers raised suspicions about the bettors' motivation and knowledge concerning the situation in Iran at that moment.

The first part of the investigation by the Financial Times involved identifying large stakes that appeared disproportionate relative to the odds being offered. This incident not only raises ethical questions regarding insider information in betting marketplaces but also sheds light on how geopolitical events can influence market behavior and betting dynamics significantly, hinting at the complexities of global interactions and their financial implications.