The odds of a US invasion of Iran before the end of 2027 have surged to 27.5% on the prediction market Polymarket, reflecting a sharp escalation in tensions that has now pushed American gasoline prices back above $4 a gallon. The jump comes as Washington intensifies airstrikes against Iranian targets and Iran retaliates with attacks on US forces.
What the betting markets are saying
Polymarket, a decentralized platform where users wager on future events, puts the probability of a full-scale US invasion of Iran within the next three years at more than one in four. That’s a significant climb from earlier this year, though the site does not provide historical data for comparison. The market is driven by a series of real-world events that have unfolded over the past weeks.
Gas prices cross a psychological threshold
The average price of a gallon of regular unleaded in the United States has risen above $4, according to industry data. While not a record, the level is a politically sensitive marker that often reshapes public opinion and policy debates. The increase is tied to rising global crude prices, which have been fueled by the growing risk of a broader Middle Eastern conflict.
Airstrikes and retaliation
Washington has intensified its air campaign against Iran, striking targets linked to the country’s military and proxy forces. In response, Iran has carried out attacks on US personnel and assets in the region. The exchange of fire has not reached the threshold of open war, but it has pushed the two countries closer to a direct confrontation than at any point in recent years.
The Pentagon has not publicly confirmed the full scope of the airstrikes, and Iran’s leadership has issued warnings of further retaliation. The back-and-forth has created a cycle of escalation that the Polymarket bettors are now pricing into their odds.
What comes next
No ceasefire or diplomatic off-ramp has been announced. The Biden administration has not changed its stated policy of preventing Iran from acquiring a nuclear weapon, but the military posture in the region has shifted. Investors and traders will watch the next moves on the battlefield and at the pump for signs of whether the 27.5% probability will hold or climb higher.
