Hedge funds increase bullish bets on US gasoline by most since US-Iran war began

Money managers are piling into gasoline bets at a pace not seen since the opening weeks of the US-Iran conflict. Net long positions in NYMEX RBOB gasoline futures and options climbed by 5,533 lots during the week ending August 25, reaching 79,858 contracts, according to the CFTC’s Commitments of Traders report.

That weekly jump is the largest since February 24, the period immediately preceding US and Israeli military action against Iran. With the national average gasoline price sitting around $4.09 per gallon, the trade is less a contrarian gamble and more a bet that an already tight market gets tighter.

The positioning in context

A net long position of 79,858 contracts is the highest in six months. To translate: each RBOB futures contract represents 42,000 gallons of gasoline, so the aggregate speculative bet now covers roughly 3.35 billion gallons of the stuff.

The buildup isn’t limited to gasoline, either. Hedge funds have been adding bullish exposure across the refined fuels complex, with similar positioning trends showing up in US diesel and crude oil futures.

Non-commercial traders, the CFTC’s classification for speculative players like hedge funds and commodity trading advisors, are driving the shift. Commercial hedgers, the refiners and distributors who actually move physical barrels, tend to be on the other side of these trades, locking in current prices to protect margins.

Why gasoline, why now

The US-Iran conflict has been reshaping energy markets since its escalation in February 2026. Military actions disrupted shipping lanes and created uncertainty around crude supply from the Persian Gulf region, including the vital Strait of Hormuz.

August also happens to be peak driving season in the US, when domestic gasoline demand typically hits its annual high. The convergence of seasonal demand strength and conflict-driven supply anxiety is essentially the bull case for gasoline distilled into a single trade.

The $4.09 per gallon national average reflects this dynamic. The pre-conflict average in early 2026 was meaningfully lower, and the sustained premium has become a persistent factor in inflation calculations.

What the trade tells us about expectations

The broader energy complex is watching two variables most closely. First, whether military operations expand to directly target Iranian oil infrastructure. Second, whether OPEC+ members with spare capacity choose to increase output to stabilize markets.

For the real economy, sustained gasoline prices above $4.00 per gallon act as a consumption tax on American households. Every cent increase in gasoline prices translates to roughly $1 billion in annualized consumer spending diverted from other goods and services.

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