Automakers Stock Up Ahead of Hormuz Deal

Automakers are quietly building ahead, padding inventories from Asian assembly plants to U.S. dealer lots as the war with Iran rattles the raw materials behind plastics, aluminum, and semiconductor chips.

The bet is straightforward: hold cars on the balance sheet now rather than risk a repeat of the chip-shortage paralysis that left lots empty during COVID.

With a tentative U.S.-Iran agreement to reopen the Strait of Hormuz still awaiting final approval, the industry is choosing inventory over discipline.

The war has pinched supplies of naphtha, the petroleum derivative used to make plastics, along with the inputs that feed aluminum production and the helium, urea, and ammonia required for semiconductor manufacturing.

Japanese and Korean automakers, which depend on Middle Eastern naphtha, are most at risk from the squeeze.

The shortages have arrived even as a tentative deal to reopen the Strait of Hormuz works its way toward approval, a sign that the ripple has already outrun the diplomacy.

Michael Robinet, vice president of forecast strategy at S&P Global Mobility, told an Automotive Press Association audience that the build-ahead trend will likely accelerate through the summer.

The math, he said, is one carmakers normally resist: "If you can get the feedstocks now, and you can find resin to make plastic, and you can find chips that require helium, and you can find urea and ammonia that are required for different operations, if you can find all of that, then they're going to build the vehicle."

Unsold inventory will sit on the books until it moves, but with shortages threatening, a drag on the balance sheet beats empty showrooms.

The hedge is showing up beyond the auto sector.

 U.S. durable goods orders jumped 7.9% in April to $346 billion, the Census Bureau reported Thursday, lifted by a 21.5% surge in transportation equipment that included a spike in civilian aircraft.

Pantheon Macroeconomics chief U.S. economist Samuel Tombs told Axios the headline figure looks temporary, describing it as companies racing to build buffer stocks against war-driven supply disruptions.

The pattern echoes last year's tariff-driven scramble, when manufacturers raced to lock in orders before President Donald Trump's import duties bit.

Whether the Strait of Hormuz deal closes within days or drags into summer, automakers are signaling they would rather absorb the cost of unsold cars than relive 2021, underscoring how fragile global production has remained five years after the chip crunch.