Traders trim odds of US gas averaging above $4.18

A swing from 82% to 47% and back to 64% puts the most likely average between $4.18 and $4.20

In one line: AAA's national average for regular gas on 2 November comes in at or below $4.18, an outcome the 64% price underrates.

Traders on Kalshi have pulled the contract between 82% and 47% this week without agreeing whether AAA's national average for regular gas will be strictly greater than $4.18 on 2 November. It stood at 73% on 26 Oct, touched its 7-day high of 82% the same day, fell to a low of 47% on 28 Oct and now trades at 64%.

That leaves it down 9 points over the 7 days and up 17 points from its low on 28 Oct. The venue puts the drop over the last 24 hours at 15 points. The rest of the event's ladder shows how narrow the band is. Traders price a reading above $4.16 at 96% and above $4.14 at 99%, but above $4.20 at 39% and above $4.22 at 6%. That puts the most likely average between $4.18 and $4.20.

The price and the ladder together show traders are confident the average lands near $4.18 but disagree on which side of the line it falls. With the average expected within a cent or two of $4.18, each new AAA reading can move this contract 15 to 20 points, which is what the week shows. The swing from 82% to 47% is consistent with a price hovering near the line, where small new data points can shift probability sharply. One thing holds across the week's swings: the contract ends lower than it began.

The call is that AAA's average on 2 November comes in at or below $4.18, and 64% overrates a hold above the line. The evidence is thin, resting on the week's downward drift and a $4.20 contract that traders put at 39%. The best case for the other side is the climb back from 47%, which suggests recent readings have stayed above $4.18. An AAA reading above $4.18 on 2 November proves the call wrong.