Betting on a US invasion of Iran before 2027 jumped to 27.5% on Polymarket, the prediction market platform, following reports of explosions over Tehran and activated air defenses. The spike came on July 22, 2026, as the US military wrapped up its 11th straight day of airstrikes in the region.
Betting markets react
Polymarket allows users to bet on the likelihood of future events. The 27.5% odds mean traders see a better than one-in-four chance that the US will invade Iran before the end of 2026. The figure represents a sharp increase, though exact prior odds were not provided in the report. Prediction markets have become a popular tool for gauging sentiment on geopolitical risks, and the jump suggests that traders are taking the possibility seriously.
What happened over Tehran
On July 22, a report indicated that Iranian air defenses were activated and explosions were heard over the capital. The source of the report was not named, and no official confirmation has come from Iranian or US authorities. Fires were also reported in the city of Behbahan, located in southwestern Iran. The cause of the fires and their connection, if any, to the explosions or the US strikes remains unknown.
The US military campaign
The US military has been conducting strikes for 11 consecutive days. The campaign's objectives have not been publicly detailed, but the sustained tempo marks a significant escalation in American military activity in the region. The strikes have been ongoing since at least July 12, according to the timeline. The Pentagon has not commented on the reported explosions over Tehran or the fires in Behbahan.
What caused the explosions and the fires is still unclear. The betting markets will likely adjust as more information becomes available. For now, the 27.5% odds stand as a measure of the uncertainty surrounding US-Iran relations.
