Hormuz shock jolts oil and equities

Oil vaulted above $100 a barrel and share markets retreated on Monday after President Donald Trump ordered a US naval blockade targeting traffic to and from Iranian ports, sharply escalating tensions around the Strait of Hormuz after weekend talks between Washington and Tehran collapsed in Islamabad. The move revived fears of a wider confrontation across the Gulf and renewed concern over inflation, shipping risks and energy security.

US Central Command said the blockade would begin at 10 a. m. ET on April 13 and would apply to vessels from any country entering or leaving Iranian ports on the Arabian Gulf and Gulf of Oman. It said the operation would not stop ships travelling between non-Iranian ports through the Strait itself, a distinction with major implications for Gulf exporters such as Saudi Arabia, the UAE, Qatar and Kuwait. Even so, traders treated the decision as a major geopolitical shock because of Hormuz’s outsized role in the global energy system.

By Monday, Brent crude had climbed above $102 a barrel while US crude traded above $104, according to market reports, as investors priced in the risk of disrupted flows and possible retaliation. European equities fell, with the STOXX 600 down about 0.7 per cent in early trade, while Germany’s DAX and Britain’s FTSE 100 also slipped. Energy shares outperformed, but travel, leisure, banks and industrials moved lower as higher fuel costs and broader uncertainty clouded the outlook.

Selling pressure was visible across Asia as well. Share benchmarks in Japan, South Korea and Hong Kong weakened, while India’s Nifty 50 and Sensex fell around 1.8 per cent in early trading after the collapse of the US-Iran talks and the surge in crude. Oil marketing companies came under pressure on concern that costlier crude would squeeze margins, while volatility gauges rose as investors reassessed the risk of a prolonged standoff. Gulf markets had already turned cautious on Sunday as the ceasefire optimism of the previous week faded.

Chronology has become central to understanding the market reaction. A fragile ceasefire had offered investors some relief after more than six weeks of fighting that began on February 28. Hopes for de-escalation then weakened after marathon negotiations in Pakistan ended without a deal. Trump followed with a blockade order and fresh threats over Iran’s nuclear programme, while Iran responded with warnings that any military approach near the waterway would be treated as a hostile act. That sequence turned what had looked like a pause in hostilities into a new flashpoint.

Analysts say the blockade is narrower than a total closure of Hormuz, but they also warn that even a selective operation aimed at Iranian shipping could prove difficult to enforce and carry major strategic risks. Former officials and energy experts cited by Reuters described it as a potentially prolonged military undertaking that could invite retaliation against regional infrastructure or commercial shipping. Others argued the White House may be using brinkmanship to force concessions from Tehran and perhaps greater pressure from buyers of Iranian crude, especially in Asia. Markets, however, have responded to the operational risk rather than the diplomatic theory.

The wider economic stakes are considerable. The Strait of Hormuz has long been one of the world’s most sensitive energy chokepoints, and the conflict has already disrupted tanker traffic and damaged infrastructure across the region. Central bankers and multilateral institutions are warning that a sustained oil shock could complicate inflation management, weaken growth and intensify strain on import-dependent economies. Bank of Japan Governor Kazuo Ueda called for vigilance over the fallout, while World Bank and IMF assessments have pointed to weaker growth and stronger price pressures if the conflict drags on.