Tyler Jacobsma is the founder of Flowframe.xyz, which provides in-depth content and tools for prediction market traders.
The Kalshi gas price contract closes on May 30 at 11:59 PM ET. Resolution comes from AAA's national average on May 31.
View the full Smart Money tool and all top trader positions at flowframe.xyz/smart-money.
Gas Prices Need to Hang On
Kalshi runs short-dated binary contracts on AAA's national gas price. The current month-end contract resolves YES if AAA's national average is above a given strike on May 31, 2026. There are four strikes listed: $4.40, $4.45, $4.50, and $4.55.
Today's AAA national average is $4.491
The Kalshi market is pricing "Above $4.40" at 60-62% YES.
Gas is already at $4.49 today, so it would need to fall 9 cents in four days for that contract to resolve NO. The market is 60% odds on that; here’s a breakdown of why I think that���s a good price.
Kalshi Odds
- Above $4.35 — 78% — YES
- Above $4.40 — 66% — YES
- Above $4.45 — 24% — YES
Look at the implied probabilities versus where gas actually is right now.
The $4.55 contract at 3% is reasonable, as that strike is 6 cents above the current price and prices have been trending down for five days.
The $4.50 at 10% is roughly fair; gas is 1 cent under that strike and could go either way. The $4.45 at 24% looks light given gas is 4.1 cents above that strike.
But the $4.40 at 66% is the one that doesn't add up, since gas is 9.1 cents above $4.40 today.
The market is pricing that as a near coin flip, but it would need gas to pretty much collapse over the next five days.
Why the Market May Be Wrong
First, AAA's drift is gentle, not aggressive.
Gas peaked at $4.564 on May 21 and has eased to $4.491 by May 26, which is a 7.3-cent drop over five days, averaging about 1.5 cents per day.
To break $4.40, the price would need to fall 9.1 cents in approximately five days, accelerating the rate of decline by roughly 60%.
Which is totally possible, but it's not the trend. AAA's daily series has been showing gradual normalization from a war-driven peak, not a panic-driven collapse.
Second, the supply-demand backdrop is still tight.
The EIA's latest weekly report showed gasoline inventories falling by 1.5 million barrels, refinery utilization at 91.6%, and product supplied at 8.77 million barrels per day.
Memorial Day weekend just hit with the highest gas prices in four years, and demand is on the rise as the summer driving season kicks off.
AAA's own May 21 release noted that pump prices are "likely to remain elevated" given the Strait closure and rising demand. None of this is the recipe for a sharp five-day collapse.
Third, the geopolitical backdrop is still hostile.
Brent crude is back near $100 per barrel after fresh US strikes in Iran.
The Strait of Hormuz blockade has now hit 100+ consecutive days, and the Iran ceasefire is "largely negotiated," according to Trump's Friday Truth Social post, but no formal MOU has been signed.
EIA data shows that crude oil drives more than half of retail gasoline prices, and U.S. gas tracks Brent more than WTI.
As long as Brent is hostage to Iran headlines, gasoline doesn't have a clean path lower.
The EV Math
Let's run the actual numbers on the trade after Kalshi's standard taker fees.
The contract is at 60¢ on the Yes side. After standard Kalshi taker fees of roughly 1.68¢ on a 100 contract position, your net cost per contract is about 61.68¢. If the contract resolves YES, you collect $1, which is a profit of 38.32¢ per contract.
That means your breakeven probability is roughly 62%. If you think the actual probability is higher than 62%, you have positive EV. If you think it's lower, you don't.
A conservative fundamental model, anchored to the current AAA price, recent drift, EIA weekly volatility, and a small geopolitical jump risk premium, puts the true probability of AAA finishing above $4.40 on May 31 closer to 79%.
That's a 19-point edge over the current market price, and it translates to roughly 18 cents of expected value per contract.
In other words, every $100 you put into this trade, you're netting about $30 in expected value if the model is right.
It's certainly not a moonshot by any means, but a high-confidence trade.
The $4.45 contract at 28 cents is the alternative play, as it needs gas to stay above $4.45, currently 4 cents above the strike.
The conservative model puts the true probability at about 46%, against a 28% market price.
That's a 17-point edge with a higher payout ratio (3.6x vs. 1.6x), making it the better trade for traders who want more leverage on the same idea.
The Trade
Buy "Above $4.40 — YES" at 63¢ or better.
Use limit orders, not market orders.
The contract is liquid enough to get a decent-sized position, but thin enough that you would get slippage if you entered a large market order.
The hedge against this trade is your view on the Iran ceasefire. If a formal MOU gets signed between now and Friday, oil drops 10+ dollars overnight, and gasoline could follow within days as wholesale prices reset.
But there still would be a lag to when that actually hits prices at the pump. But that's the actual tail risk, watch the Iran headlines closely over the next few days.
The Takeaway
The Kalshi gas market is pricing in a faster decline in retail gas prices than the data supports.
AAA is at $4.491 today. The recent drift is about 1.5 cents per day and the supply-demand backdrop is still tight with a hostile geopolitical backdrop.
Don't want to do the EV math yourself? Use the Kelly Criterion calculator at flowframe.xyz/kelly to size the trade based on your bankroll and edge estimate.
