Prediction markets are not convinced the U.S. ceasefire against Iran will hold. A Polymarket contract on 14 straight days without a U.S. strike on Iranian territory slid from over 60% to around 53% in a day, while most of the money on Myriad sits on the next round of talks slipping past July 31.
The United States seems to have announced a ceasefire on its offensive actions against Iran yesterday, and traders spent the following day marking down the chance it survives. A Polymarket contract requiring a continuous 14-day period without a U.S. airstrike or surface-to-surface missile strike directly hitting Iranian territory fell from over 60% to around 53% today.
That gap between announcement and outcome is what traders are charging for. A ceasefire is a sustained halt in fighting, not simply an announcement that commanders are taking a breather, and the market now prices roughly 50-50 odds that the United States will not hold off for two full weeks.
Trump keeps the strike option open
The skepticism is not paranoia. The two sides had held fire for a third day by Monday after 13 consecutive nights of U.S. strikes. But President Donald Trump, speaking to Axios, said he was ready to resume military action if talks fail — in his words, "very strong military action".
Iran, meanwhile, denied that direct negotiations were taking place, saying mediators were carrying messages.
Traders expect the next talks to slip into August
Myriad, a prediction market developed by Decrypt's parent company Dastan, separately tracks whether the next formal senior-level round of U.S.-Iran peace talks begins by July 31. Its rules exclude technical meetings, phone calls, and messages exchanged through mediators unless they form part of a formally convened senior-level round.
Most of the money there is on those conversations being delayed until next month.
The April ceasefire set the template
The pattern is familiar. An April ceasefire sent Bitcoin and oil markets sharply higher, but analysts called that breathing room fragile. Days later, prediction markets still doubted that Strait of Hormuz shipping would normalize because ships were still turning back.
Polymarket's July 31 contract leaves room for the question to stay live: it can remain open into mid-August because the required 14-day no-strike period only needs to begin by July 31.
Source: Decrypt
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