President Donald Trump has told Americans that the inflation pain from the Iran war will be short-lived, but two back-to-back inflation reports released this week tell a different story, and the bond market is beginning to signal the same concern.

Wednesday’s Producer Price Index report showed that the cost of doing business in the United States is rising at a pace not seen in nearly four years, significantly increasing the risk that companies will pass those higher expenses directly to consumers in the months ahead.

Wholesale Inflation Jumps at Near-Record Pace

The PPI, which measures inflation at the wholesale or business level before it reaches consumers, rose 1.4% on a monthly basis in April, twice the pace that economists had forecast. On an annual basis, the index climbed to 6%, up sharply from 4% in March.

The monthly gain was the second-largest recorded since the index was introduced in 2010, underscoring the severity of the current inflationary environment for American businesses.

A 15.6% increase in gasoline prices drove approximately 40% of the overall PPI increase, directly reflecting the supply disruption caused by the continued closure of the Strait of Hormuz. With global oil inventories falling at a record pace and prices not yet at their peak, that pressure is widely expected to intensify further.

Even stripping out the volatile food and energy categories, core PPI rose 1% for the month, pushing its annual rate to 5.2%. That underlying figure signals that inflation is not limited to energy and is spreading more broadly through the business cost structure.

Trump’s Short-Term Pain Argument Faces Reality

Trump has consistently downplayed the inflation risks associated with the Iran war, telling reporters Tuesday that price pressures are “just short-term” and predicting that inflation could fall to as low as 1.5% once the war ends.

This week’s data makes that timeline look increasingly optimistic.

Even if the U.S. reached a peace deal with Iran today, it would still take months for oil shipments held up by the Hormuz blockade to reach American shores and begin restoring supply. Economists and energy analysts broadly agree it could take months or potentially years before gasoline prices return to pre-war levels, regardless of when a formal agreement is signed.

What Higher Business Costs Mean for Consumers

The PPI report does not guarantee that all of the cost increases businesses are absorbing will be passed directly to consumers. Companies weigh whether their customers are able or willing to pay higher prices before raising them.

However, the current environment makes that calculus difficult. Consumer price inflation is already outpacing wage growth, leaving households with less capacity to absorb additional cost increases. 

At the same time, businesses have already shouldered much of the burden of elevated tariffs over the past year, leaving them with limited room to absorb new cost pressures on top of that.

That combination makes it likely that at least a meaningful portion of the current wholesale inflation will filter through to consumer prices in the coming months.

Nationwide senior economist Ben Ayers said the jump in input prices points to further consumer price increases in May and forecast that the Consumer Price Index could exceed 4% in next month’s report, which would mark the highest annual rate since 2023.

Bond Markets and Wall Street React With Caution

Financial markets responded to the inflation reports with visible unease.

The 10-year Treasury yield hit 4.49% following Wednesday’s PPI release, approaching the closely watched 4.5% threshold before pulling back slightly to around 4.46%. 

Rising yields reflect growing concern among bond investors that inflation could remain elevated for longer than previously expected, keeping the Federal Reserve from cutting interest rates even as economic growth shows signs of slowing.

Stocks closed modestly lower, with the Dow falling 0.4%, the S&P 500 declining 0.25%, and the Nasdaq losing 0.2%.

Investors have been steadily scaling back their expectations for a near-term rate cut as the inflation picture has darkened. 

The Federal Reserve’s usual response to stubborn inflation, raising interest rates, is complicated by a labor market that has already been softening, making aggressive tightening a risky choice for an economy navigating the dual pressures of an energy shock and slowing growth.

The emerging picture is one in which price relief for American consumers is not around the corner, regardless of how quickly the geopolitical situation resolves.