Tariffs, Gas Surge Test U.S. Markets

As of May 7, 2026, the U.S. economy is contending with the combined impact of President Trump’s tariffs and ongoing military operations in Iran. These factors have driven a sharp rise in energy costs and rekindled inflation pressures, even as equity markets trade close to record levels.

Gasoline prices have increased 60% year to date, with the average price of regular gasoline reaching $4.45 per gallon in the U.S. The surge is attributed to the Iran war and the current tariff regime, amplifying cost pressures for households and businesses.

Consumer price inflation measured 3.3% in March 2026, marking the highest reading in two years. Analysts cited elevated energy prices as a key driver and noted expectations for further acceleration in inflation if fuel costs remain high.

Trump’s tariffs have raised the average tax on U.S. imports to 11.8%, the highest level since the 1940s. This elevated tariff burden is adding to input costs for companies and raising prices for consumers on a broad range of imported goods.

The increase in average import taxes has become a central concern for economists and investors, who view it as a significant headwind for growth at a time when the economy is already absorbing higher energy costs.

Reports also highlight that new tariffs are anticipated this summer, which could further lift trade barriers. Market participants are watching for details on any additional measures and their potential impact on supply chains and consumer prices.

Despite these pressures, the S&P 500 (SPX) has added 6% year to date and currently trades near its record high. Strong earnings growth, supported in part by investments in artificial intelligence, has underpinned the benchmark index.

The resilience of the equity market stands in contrast to deteriorating cost dynamics in the real economy. Analysts warn that investors may be overestimating the market’s ability to withstand further shocks from tariffs and energy prices.

Bearish sentiment has emerged as a notable theme, with concerns that higher import taxes and fuel costs could erode profit margins and slow consumer spending, even as headline indices remain elevated.

Investors are increasingly focused on policy actions, including tariffs and reported troop cuts, as key variables for U.S. market performance. Coverage has emphasized that these measures could affect the U.S. more than some international peers.

The combination of rising inflation, multi‑decade‑high tariff levels and elevated gasoline prices has led to heightened caution in financial markets. Participants are weighing whether current stock valuations adequately reflect these accumulating risks.