Kalshi traders now rate an 88% chance that the average U.S. gas price will rise above $4 a gallon by the end of July, according to CNBC’s market tracker Wednesday. This contract was sitting at 56% just two days ago, meaning a major shift in sentiment has occurred quickly.
Traders also give a 64% chance of the average rising above $4.10 and less than a 5% chance of reaching $4.50. The contract is resolved using AAA’s national daily 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.
Why this sudden change
The move follows the end of the ceasefire between the United States and Iran last week and a new wave of strikes on Wednesday. U.S. Central Command posted on
The strait represents the bottleneck for about a fifth of global oil shipments. The Kalshi gas contract has closely tracked events in the waterway through 2026. West Texas Intermediate futures for August delivery closed Wednesday at $79.60 a barrel, up 26 cents on the day, marking the third straight session of gains.
The Brent contract for September settled at $84.95, also up 0.3%. Oil has fluctuated to a lesser extent than the Kalshi contract as the difference between pump prices and crude prices is about a week. Kalshi traders are counting on this difference to catch up by July 31.
Kalshi’s track record
As Cryptopolitan reported earlier, Kalshi contracts have already been tracking the oil and Iran story since May, when the platform priced a US recession in 2026 with a probability of around 32.5% as oil rose above $100 per barrel.
A separate study, affiliated with the Federal Reserve, in early 2026 found that Kalshi’s forecast matched the accuracy of Wall Street and New York Fed surveys on several Fed decisions and outperformed professional forecasters on overall CPI. That record is what makes Wednesday’s 32-point swing worth reading as a signal rather than a noise.
Traders reassessed from a 56% draw to near certainty within 48 hours, suggesting the crowd views the strait disruption as durable enough to pass the two-week window before the end of the month. On July 9, before Wednesday’s strikes, Kalshi traders gave a 75 percent chance that gasoline would still be above $3.50 a gallon on Election Day on November 3, and a 39 percent chance that it would exceed $3.75.
What happens next
These Election Day contracts did not move as significantly in response to this week’s escalation, suggesting that the public expects the near-term supply shock to peak in July and moderate in the fall.
Before the U.S.-Iran war began in late February, the average price of U.S. gas was less than $3 per gallon per AAA. Wednesday’s $3.89 average is about 30% above that benchmark. Kalshi’s public’s 88 percent chance of getting $4 gasoline by the end of the month means the market has effectively priced the war bounty as permanent for at least the next two weeks.
If the Strait of Hormuz remains a direct target of US strikes beyond July 31, the same people will likely also revise election day contracts upwards.
