EUR/USD trades as war proxy after inflation jumps to 3.3 percent

The EUR/USD exchange rate is now primarily driven by the inflationary fallout from the US-Iran war, after new data showed US consumer prices surged to 3.3 percent in March, complicating central bank policy on both sides of the Atlantic.

"Inflation is a problem and it's only going to get worse," said Mark Zandi, chief economist at Moody's. "Clearly, the war in Iran is doing significant damage."

The consumer price index jump from 2.4 percent in February was fueled by a record 21.2 percent monthly increase in gasoline prices, according to the Bureau of Labor Statistics. The surge follows Iran’s effective blockade of the Strait of Hormuz, a chokepoint for about a fifth of the world's oil supply, which sent Brent crude prices from $70 to a peak of $118 per barrel.

The data complicates the Federal Reserve's path forward after officials signaled one potential rate cut this year. Sustained price pressures could force a delay or even a hike, creating significant policy divergence risk against the European Central Bank and driving volatility in the world’s most-traded currency pair.

Record Energy Shock Ripples Through Economy

The conflict, which began February 28, has triggered what Dan Yergin, vice chairman of S&P Global, calls "the mother of all supply chain disruptions." The impact extends far beyond the gas pump. Airfares climbed 14.9 percent over the last 12 months as airlines passed on the higher cost of jet fuel to consumers. An average round-trip ticket from the U.S. to Rome, for example, jumped more than $300 to $1,165 since the war began, according to data from Kayak.

The price shock is also appearing in food and e-commerce. Higher diesel costs are raising transportation expenses for trucking food to grocery stores, while disruptions to fertilizer exports passing through the Strait of Hormuz threaten to increase costs for farmers and consumers. Food prices rose 2.7 percent over the last year. Meanwhile, e-commerce giant Amazon is adding a 3.5 percent fuel and logistics surcharge for third-party sellers, a move mirrored by shipping carriers like UPS and FedEx.

A New World Order for Oil Markets?

The energy shock may drive lasting changes to the global oil market, potentially turning a once-open system into one that is "weaponized and fractured," according to an analysis from Axios. Such a reordering could mean persistently higher energy prices and inflation, echoing the 1970s oil crisis that led to a period of stagflation and forced a permanent shift in consumer behavior.

This marks a departure from previous crises where international cooperation was the ultimate lesson. "In today's fragmented, conflict-prone world, many may draw the opposite conclusion," write Jason Bordoff, a former Obama administration energy adviser, and Meghan O'Sullivan, an adviser under former President George W. Bush, in Foreign Affairs. The conflict demonstrates that the Strait of Hormuz can be wielded as a powerful weapon, potentially altering the foundations of the dollar-based global economy.

Even if the current ceasefire holds, prices may be slow to fall. Analysts note the "up like a rocket and down like a feather" dynamic, where prices rise quickly during a shock but recede slowly. An enduring "risk premium" on oil is likely, as investors now know a disruption of this magnitude is possible. For the EUR/USD, this means navigating a new regime where geopolitical headlines and energy-driven inflation reports are likely to be more influential than traditional economic data for months to come.

This article is for informational purposes only and does not constitute investment advice.