Strait of Hormuz Standoff Reignites Volatility

Over the past few weeks, a rising tide of optimism has been gathering in the equity markets. This positive momentum reached a crescendo last week when Iranian Foreign Minister Abbas Araghchi announced that, in line with the ceasefire in Lebanon, the Strait of Hormuz would reopen for commercial vessels after being closed for approximately seven weeks beginning in late February.

For investors, this came as welcome news. West Texas Intermediate fell to $83.85, which was down 11.5 percent from the prior day, while Brent Crude fell 9.1 percent to $90.38. U.S. equities pushed sharply higher for the 12th of the past 13 trading days as markets breathed a collective sigh of relief. The optimism quickly faded on Sunday, however, when Iran reclosed the strait, citing the ongoing U.S. naval blockade as a “breach of trust.”

As of April 20, 2026, the Strait of Hormuz remains at a virtual standstill. Despite a brief attempt to reopen the waterway over the weekend, it has been effectively shut down again due to an intensifying military standoff between the U.S. and Iran, with Tehran stating the waterway will remain closed until the U.S. lifts its own naval blockade of Iranian ports. Oil prices returned to their previous volatile state, jumping nearly 7 percent on Monday as the hope for a reopening faded.

As outlined in our most recent Quarterly Market Commentary, we forecasted that the stage was set for a broadening economy entering 2026. Lower interest rates from recent Federal Reserve cuts, combined with fiscal stimulus from the OBBB and deferred government spending from the previous year’s fourth-quarter shutdown, would provide a nearer-term tailwind to economic growth. Add in a dose of deregulation and the productivity boosts from companies using artificial intelligence (AI), and we believed the ingredients were present for market gains to expand beyond a narrow group of technology stocks to a broader growth of equities.

However, the outbreak of the Middle East conflict in late February introduced opposing forces. Rising energy prices, higher interest rates and geopolitical uncertainty threatened to slow economic growth. This hesitation was visible in recent economic data. The National Federation of Independent Business (NFIB) Small Business Optimism survey fell three points, noting that while the 20 percent small business tax provision in the One Big Beautiful Bill Act helped small business owners, the overseas conflict spooked consumers and business owners alike. Similarly, the Federal Reserve’s Beige Book highlighted that firms were adopting a “wait-and-see” posture regarding hiring and capital investment due to geopolitical uncertainty.

Read more: Fed Weighs Stubborn Inflation and Middle East Conflict