

A cluster of accounts on Polymarket made over $600,000 betting on the U.S./Iran ceasefire, as reported by Bubblemaps. This group has a history of profiting from military-related trades, raising concerns about potential insider trading in prediction markets.
BREAKING: 🇺🇸 🇮🇷 THEY DID IT AGAIN
Last night, the SAME cluster of Polymarket accounts made $600k predicting the US Iran ceasefire, before changing their handles
Why are they hiding? pic.twitter.com/Fe0pqZKkco
— Bubblemaps (@bubblemaps) April 8, 2026 Those profits largely came via markets that had the ceasefire taking place prior to April 7 and April 15. However, the accounts did not hit on all their wagers, collectively losing just shy of $50,000 on trades regarding a ceasefire prior to March 31. While the wager size is large, Bubblemaps says that it doesn’t necessarily point to the accounts having privileged information about the actions. “People can only wager the capital they have. We don't know the income or net worth of individuals trading on Polymarket,” a representative for the firm told *Decrypt.* “We can only definitively say that these bets were large and well-timed.” The firm also stated publicly that it cannot say for certain the Polymarket accounts in question belong to insiders. “Their win rate on ceasefires is not perfect, and some positions, such as March 31, did not play out,” it posted on X. “Still, their track record of correctly calling surprise attacks on Iran suggests they may have access to better information than most.” Alleged insider trading on prediction markets has drawn tremendous scrutiny of late, particularly as it relates to potential insiders within the Trump administration. For example, recently California Governor Gavin Newsom alleged that “Trump’s Washington is riddled with ethical failures and insider profiteering,” ultimately signing an executive order that banned political appointees and those associated with them from profiting on prediction markets with inside information. The prediction market platforms themselves have been active in trying to deter the act, as well. Polymarket and Kalshi both made moves last month to improve their response to insider trading behaviors, with the latter implementing preemptive screening that would proactively ban politicians from trading on markets related to them. In January, well-timed bets on the ousting of Venezuelan President Nicolás Maduro triggered scrutiny when a trader profited more than $430,000 on Polymarket. Shortly thereafter, two Israelis were arrested and charged with using military secrets to trade and notch profits on the platform. Last month, Kalshi fined and suspended a video editor for YouTube personality MrBeast, who used inside information to profit on markets. The editor was later fired by Beast Industries, following an internal investigation.
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The Polymarket accounts made over $600,000 from trades related to the U.S./Iran ceasefire.
The accounts have been active in military markets since 2024 and previously profited $1.2 million on contracts related to Israeli and U.S. strikes on Iran.
Polymarket and Kalshi are implementing measures to deter insider trading, including preemptive screening to ban politicians from trading on related markets.
California Governor Gavin Newsom alleged that Trump's Washington is rife with ethical failures and insider profiteering, leading to an executive order banning political appointees from profiting on prediction markets.






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