Trump extends Iran ceasefire on the first day: Hormuz docks 2 ships, oil prices near 100, U.S. stocks close lower

In three CNBC reports covering the Hormuz oil tanker seizure incident, the U.S. stock market reaction, and the oil price trend, U.S. President Trump publicly extended the ceasefire agreement with Iran on April 22 and, within a few hours of also maintaining the blockade of the Strait of Hormuz, the Iranian Revolutionary Guard Corps (IRGC) immediately seized two container ships in the same strait. Oil prices briefly approached $100 per barrel, while U.S. stocks closed down about 0.6% on the same day. The three news reports depict the same structure: the diplomatic track puts the fighting on pause, the military track still has close calls, and the market chooses to wait and see regarding the overall situation.

Hormuz seizure: two container ships taken toward Iran’s coast

The UK Maritime Authority reported that two ships were attacked in the Strait of Hormuz that day, and Iran’s official media also said a third ship was targeted. The IRGC later confirmed the seizure of two container ships: MSC Francesca, registered in Panama, and Epaminondas, operated by a company based in Greece, and said it escorted the two ships to Iran’s coast. The IRGC’s official account said the two ships “entered the waters without authorization and tampered with navigation system data.”

The third Greek-flagged cargo vessel was also attacked near the Strait of Hormuz, but whether it was seized has not been confirmed. This was the first major maritime incident after Trump announced the extension of the ceasefire on the morning of April 22 while also maintaining the U.S. military blockade in Hormuz, meaning the ceasefire agreement does not cover the risk of close calls at sea.

Trump announcement details: ceasefire extended, blockade continues

Trump announced on Truth Social an “indefinite” extension of the ceasefire with Iran, but clearly stated that the U.S. military blockade of the Strait of Hormuz would be maintained. He said the main reason for this decision was a direct request from senior officials in the Pakistan government, including Army Chief of Staff Asim Munir and Prime Minister Shehbaz Sharif, both of whom personally placed calls. He also believed that “the Iranian government is currently seriously fractured,” saying that giving a diplomatic time window would help find a more stable outcome.

This statement also indirectly explains why the market reaction was mild: the ceasefire extension is “room for negotiations,” not “the end of the fighting.” The continuation of the blockade means the U.S. side still retains military pressure tools. Trump’s earlier first time publicly reposting “Regime Change!” from the White House still set the tone for how the market assessed where events might go.

U.S. stock market reaction: down 0.6% at the close; futures and spot diverge

The ceasefire extension announcement was released before the U.S. stock market opened. Futures briefly rose—Nasdaq 100 futures gained 0.68%, S&P 500 futures rose 0.53%, and Dow futures rose 0.47%. But after entering the regular trading session, all three major indexes gave back their gains, with the S&P 500, Dow, and the Nasdaq Composite all closing down about 0.6%.

The difference in the paths of futures versus spot points to shifts in market psychology: optimism before the open was pulled back during the day by the reality of the “tanker seizure incident + oil prices returning to near $100.” Analysts interpreted that investors acknowledged that short-term geopolitical pressure had eased somewhat, but remained skeptical about the sustainability of the ceasefire and the political uncertainty brought by the term “seriously fractured” within Iran.

Oil market: Brent near 100; Saudi Arabia and OPEC posture are key

Brent crude June futures touched nearly $100 per barrel at the day’s high and closed at $99.81, up 1.4%. WTI also rose 1.3% to $90.86. Oil prices fluctuated several times during the day, reflecting the market trying to find a balance between “ceasefire is bad for oil prices” and “tanker seizure is good for oil prices.”

CNBC analysis said the most realistic scenario right now is “moving sideways in the high-$90s range, but with high volatility.” Four variables determine the direction: one, whether Iran truly enters a negotiation track; two, whether the U.S. adjusts its blockade of Hormuz; three, how much actual shipping through the Strait of Hormuz is restored; and four, unexpected military or law-enforcement actions. Any of these could cause oil prices to swing sharply within a single trading day.

Assets Close / Intraday Price Day change Brent June futures $99.81 +1.4% WTI nearby month $90.86 +1.3% S&P 500 — −0.6% Dow Jones — −0.6% Nasdaq Comp. — −0.6%

Hormuz shipping reality: normal daily volume at 20%; now nearly at a standstill

Under normal circumstances, the Strait of Hormuz carries about 20% of global oil and liquefied natural gas (LNG) transportation. According to shipping data, over the past 24 hours, only 3 ships passed through the waters—nearly at a standstill. Compared with the baseline of dozens of tankers passing per day before the outbreak of war, the current level of shipping blockage alone is enough to support a structural premium in oil prices.

This also explains why, even though Trump’s announcement of “ceasefire extension” was a headline-negative factor for oil prices, both WTI and Brent still rose. The market is placing more weight on whether “shipping activity truly resumes,” rather than whether “diplomacy extends the negotiations.”

This article, Trump’s first day extending the Iran ceasefire: Hormuz seizes 2 ships; oil prices approach 100; U.S. stocks close down, was first published on Chain News ABMedia.