CNBC — 2026-04-18#

Lead Story#

Global energy markets are on edge after Iran abruptly reimposed the closure of the Strait of Hormuz, scuttling a fragile ceasefire and fueling fears of a massive supply disruption. The geopolitical whiplash has rattled policymakers, with global central bankers at the IMF meetings warning that a drawn-out conflict could trigger historic energy shortages and global stagflation.

Markets & Economics#

Despite mounting geopolitical fears, the S&P 500 surged to its first close above 7,100, booking a 9% gain for the month on hopes of a war resolution. However, the reality of $4-a-gallon gas and prolonged Middle East tensions has driven U.S. consumer sentiment down to a record low of 47.6, triggering a sharp pullback in discretionary spending at entertainment venues like Dave & Buster’s. To artificially suppress energy prices ahead of the midterms, the U.S. Treasury extended a sanctions waiver allowing countries to purchase Russian oil, a move that drew swift bipartisan criticism. The U.K. has also felt the economic sting, refusing to join U.S. military operations against Iran—a rift that prompted President Trump to single out London and threaten the U.K.’s 10% baseline import tariff ahead of a royal state visit.