Trump Announces Ceasefire in U.S.-Iran Conflict
On Tuesday, President Donald Trump declared a two-week ceasefire between the U.S. and Iran, a conflict that has been ongoing for over a month. The future of this ceasefire is uncertain, but it’s clear that some individuals accurately predicted its timing, raising suspicions regarding insider trading.
High Stakes on Polymarket
More than $170 million was wagered on Polymarket regarding the possibility of a ceasefire, marking it as one of the largest geopolitical gambles in prediction markets, as highlighted by Bloomberg. A group of accounts that frequently change their names has consistently turned profitable since the U.S. military actions against Iranian nuclear sites in the summer of 2025, according to Bubblemaps.
Profitable Bets on Military Actions
These accounts successfully predicted events such as the U.S. bombing of Iranian nuclear facilities on June 21, 2025, and Israel’s Operation Rising Lion on June 13, 2025, along with the onset of hostilities between the U.S. and Iran on February 28, 2026. Reports from the Wall Street Journal indicate that three accounts grossed over $600,000 from the ceasefire bet and accrued over $1.2 million from forecasting the war’s commencement.
Debates Over Ceasefire Definition
Disputes have arisen on Polymarket about what qualifies as a “ceasefire,” a recurring issue when significant financial stakes are involved. Past instances, such as the U.S. abduction of Venezuelan leader Nicolas Maduro, led to contention among users who believed their invasion bets were unjustly ruled unsuccessful.
Clarifying the Ceasefire Terms
The ceasefire agreement specifies that it would be validated if there is a “publicly announced and mutually agreed halt in direct military engagement” between the U.S. and Iran. Notably, Israel is not mentioned in these terms, and whether the current situation satisfies Polymarket’s criteria remains undecided with two disputes pending resolution.
Ongoing Conflict Despite Ceasefire
Although Trump announced the ceasefire, uncertainty about its specifics emerged swiftly. CNN reported the absence of a formal agreement, and Israel intensified its strikes in Lebanon, resulting in numerous casualties. Iran has also reportedly launched attacks on three power and water facilities amidst the ceasefire, contradicting claims of a peaceful halt.
Insider Trading Concerns in Prediction Markets
Insider trading scrutiny within prediction markets like Kalshi and Polymarket is increasing, as the regulatory framework remains unclear. Despite the rapid rise of these platforms, the Trump administration seems unlikely to investigate those profiting significantly from such bets. Furthermore, over $950 million was wagered on falling oil prices right before the ceasefire announcement, indicating a potential insider advantage in various market activities.

