
Contracts for talks by Aug. 31 and Sept. 30 moved lower as Iran's parliament advanced a Hormuz security plan and Trump said Washington was preparing stronger economic pressure.
Polymarket traders further cut the implied odds of another round of U.S.-Iran peace talks, with PPP monitoring showing the prediction market pricing talks by Aug. 31 at 22%, down 10% in 24 hours, and talks by Sept. 30 at 56%, down 8%. The latest move follows earlier weakness in Polymarket pricing for a U.S.-Iran Strait of Hormuz agreement after a previously negotiated passage-management arrangement involving Iran, Oman and the United States remained unannounced. Iran's parliamentary National Security and Foreign Policy Commission said it had approved the outline of a strategic action plan to ensure the security and development of the Strait of Hormuz, while Trump said Washington was preparing to intensify economic pressure on Iran and described the two sides as only in a "half-negotiation" state. Prediction markets such as Polymarket reflect trader expectations rather than confirmed diplomatic outcomes.