Moody's Warns Iran Conflict Will Deepen US Economic Strains
New York, Tuesday, 5 May 2026.
Despite record stock highs, Moody’s warns the Iran conflict will trigger soaring oil prices, worsening 2025’s tariff-driven inflation and pushing a fragile US economy closer to a recession.
A Vulnerable Foundation: The Tariff Toll
To understand the severity of the current geopolitical shock, one must first examine the domestic economic landscape leading into May 2026. Since President Donald Trump enacted sweeping import taxes in 2025—a move he previously lauded as ushering in a “golden age of America”—the United States economy has faced significant headwinds [1]. According to Mark Zandi, chief economist at Moody’s Analytics, a year’s worth of data indicates that these tariffs have inflicted substantial damage [4][5]. The consumer expenditure deflator, a key inflation gauge, accelerated to a 3% year-over-year pace, up from 2.5% prior to the tariffs, remaining stubbornly above the Federal Reserve’s 2% target [4].
The Regulatory Tug-of-War
Despite a temporary reprieve, trade policy remains a source of immense uncertainty for American businesses. In February 2026, the Supreme Court struck down many of the president’s tariffs issued under the International Emergency Economic Powers Act [1][3]. Following this ruling, the average tariff rate paid by U.S. importers fell by 4 percentage points, dropping from 12% to 8%, according to Oxford Economics [3]. However, the administration quickly pivoted, maintaining Section 232 taxes on steel and cars and initiating new administrative processes to restore the broader import levies [1][3].
The Geopolitical Catalyst: Energy Shocks
It is against this fragile backdrop that the renewed conflict in the Middle East strikes. On May 4, 2026, hostilities briefly resumed in the Strait of Hormuz, a critical artery for global energy supplies [1]. Zandi warns that the economic fallout from the Iran war is hitting with full force, asserting that the resulting spike in energy and commodity prices threatens to inflict even more damage than the 2025 tariffs [1][4]. He notes that these pressures will further undermine growth and push inflation higher, exacerbating existing concerns about stagflation [1][4].
A Disconnected Market and Recession Risks
Despite these compounding pressures, Wall Street appears largely insulated from Main Street’s reality. The S&P 500 recently closed above 7,200 for the first time in history, capping off its best month since 2020 [2]. However, Zandi cautions investors against viewing this stock market momentum as a reflection of underlying economic health [2]. He attributes much of this capitalization to speculative excitement surrounding artificial intelligence technology, which now accounts for nearly half of the market’s value [2]. Additionally, Zandi suggests that investors are relying on a “Trump put”—a belief that the administration will intervene, potentially even halting military operations, to prevent sustained stock market declines [2].