Key Takeaways
- President Trump commanded the US Navy to establish a blockade of the Strait of Hormuz beginning Monday at 10 a.m. ET
- Dow futures plummeted 580 points at the low before recovering partially; S&P 500 and Nasdaq futures declined approximately 0.5–0.7%
- Oil markets rallied above $100 per barrel, with Brent crude climbing as high as 9%
- Iranian officials denounced the blockade as “an act of piracy” and issued threats against Persian Gulf ports
- First quarter bank earnings season commences Monday, with Goldman Sachs leading the releases
Equity futures experienced significant declines Monday morning following President Donald Trump’s directive to establish a US Navy blockade of the Strait of Hormuz, a waterway crucial to global oil transportation.
The President delivered his announcement via Truth Social, stating: “Effective immediately, the United States Navy, the Finest in the World, will begin the process of BLOCKADING any and all Ships trying to enter, or leave, the Strait of Hormuz.” Implementation was scheduled for 10 a.m. ET Monday.
This directive followed the weekend collapse of US-Iran peace negotiations in Islamabad. The diplomatic failure concluded a short-lived period of positive sentiment that had propelled markets through their strongest week of 2026.
Dow Jones Industrial Average futures registered losses of up to 580 points before moderating to approximately 300 points, representing a 0.7% decline. S&P 500 futures and Nasdaq 100 futures each retreated between 0.5% and 0.7%.

Energy markets reacted forcefully to the development. Brent crude surged by as much as 9%, approaching $104 per barrel, before moderating slightly to maintain levels above $101. West Texas Intermediate futures advanced more than 8% to exceed $104 per barrel.
Tehran issued a swift response to Trump’s directive, pledging to strike all Persian Gulf ports should its energy infrastructure face threats. Iranian authorities characterized the blockade as “an act of piracy.”
Energy Price Surge Rekindles Inflation Worries
The dramatic increase in oil prices rekindled anxiety about inflationary pressures. Elevated energy expenses can ripple through the broader economy, potentially dampening consumer expenditure and overall economic expansion.
Gold futures declined 0.7% to settle at $4,756 per ounce. The US dollar strengthened 0.3% relative to a basket of major currencies. The benchmark 10-year Treasury note yield increased by one basis point to reach 4.33%.
The three primary indexes had recently completed their strongest weekly performance of 2026, supported by a tenuous ceasefire that now faces renewed uncertainty. Market analysts indicated that investors were recalibrating equity valuations amid an unclear resolution timeline for Middle East tensions.
“Anytime there is a repricing in markets, we see volatility,” said Clark Bellin, president of Bellwether Wealth.
Despite the morning selloff, certain analysts observed that futures had rebounded from session lows, indicating investors maintained some optimism for a diplomatic resolution.
First Quarter Earnings Reports Launch
Market focus was simultaneously shifting toward the commencement of first quarter earnings announcements. Goldman Sachs was scheduled to deliver its quarterly results Monday.
JPMorgan Chase, Citigroup, Bank of America, Wells Fargo, and Morgan Stanley were all slated to release earnings throughout the week. Netflix and PepsiCo were also expected to publish quarterly results.
The Strait of Hormuz represents a narrow maritime passage situated between Oman and Iran. Approximately one-fifth of global oil supply transits through this waterway, establishing it as a vital chokepoint in international energy markets.

