Kalshi traders now price the odds of the US national average gas price exceeding $4 per gallon by the end of July at 88%, according to CNBC’s Wednesday market tracking. The same contract sat at 56% just two days ago.
Traders also give a 64% chance that the average crosses $4.10 and less than 5% odds of hitting $4.50. The contract resolves using AAA’s daily national average, which stood at $3.89 on Wednesday, up about three cents from Tuesday. This year’s high was $4.56, set on May 21.
Escalation in the Strait of Hormuz
The move followed the end of the US-Iran ceasefire last week and a fresh wave of strikes on Wednesday. US Central Command posted on X that a second round of strikes launched at 3 p.m. ET, targeting what it called “military capabilities Iranian forces have used to attack commercial shipping in the Strait of Hormuz.”
The Strait represents the bottleneck for about a fifth of the world’s oil shipments. The Kalshi gas contract has followed events in the waterway very closely through 2026. West Texas Intermediate futures for August delivery closed Wednesday at $79.60 per barrel, up 26 cents on the day. That was the third straight session of gains.
Brent’s September contract settled at $84.95, also up 0.3%. Oil fluctuated to a lesser extent than the Kalshi contract. The difference between pump prices and crude prices is about one week, and Kalshi traders are banking on that gap to close by July 31.
Tracking the oil-and-Iran story
As Cryptopolitan earlier reported, Kalshi’s contracts have tracked the oil-and-Iran story since May. Back then, the platform priced a 2026 US recession at roughly 32.5% odds as oil crossed $100 per barrel.
A separate Federal Reserve-affiliated study in early 2026 found Kalshi’s forecasts matched Wall Street and New York Fed survey accuracy across multiple Fed decisions. The platform even beat professional forecasters on headline CPI. That track record makes Wednesday’s 32-point swing worth reading as a signal rather than noise.
Traders repricing from a 56% coin flip to a near-certainty in 48 hours suggests the crowd sees the Strait disruption as durable enough to push through the two-week window before month-end. On July 9, before Wednesday’s strikes, Kalshi traders gave a 75% chance that gas would still be above $3.50 per gallon on Election Day November 3. They also gave 39% odds it would exceed $3.75.
Election Day contracts less reactive
Those Election Day contracts have not moved as sharply in response to this week’s escalation. That suggests the crowd expects the near-term supply shock to peak in July and moderate by fall.
Before the US-Iran war began in late February, US gas averaged below $3 per gallon, per AAA. Wednesday’s $3.89 average is roughly 30% above that baseline. The Kalshi crowd’s 88% odds on $4 gas by month-end means the market has effectively priced the war premium as permanent for at least the next two weeks.
If the Strait of Hormuz remains a live target for US strikes past July 31, the same crowd will likely reprice the Election Day contracts higher as well.
