Sixteen bets made $100,000 each accurately predicting the timing of the US airstrikes against Iran on 27 February. Later, a single user would make over $550,000 after betting that Ayatollah Ali Khamenei would topple, just moments before his assassination by Israeli forces. On 7 April, right before Donald Trump announced a temporary ceasefire with Iran, traders bet $950m that oil prices would come down. They did.

These bets and other well-timed wagers accurately predicted the precise timing of major developments in the US-Israel war with Iran, creating huge windfalls and raising concerns among lawmakers and experts over potential insider trading.

Betting – once largely siloed to sporting events – has now spread to include contracts on news events where insider information could give some traders an advantage.

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