Kospi Plunges 9%, SK Hynix Dives as Iran Closes Hormuz Strait

South Korea's Kospi index plunged 9% on Monday, erasing billions in market value, as SK Hynix stock gave back all gains since its Nasdaq listing. The sharp decline followed Iran's announcement that it has closed the Strait of Hormuz, a critical chokepoint for global oil shipments.

Possible Causes

The immediate trigger is Iran's closure of the Strait of Hormuz, raising fears of oil supply disruptions and higher energy prices. Escalating geopolitical tensions prompted investors to flee risk assets across Asia.

Context

SK Hynix, which recently debuted on Nasdaq, saw its shares collapse in Seoul trading, wiping out all post-IPO gains. The semiconductor sector was hit particularly hard. Meanwhile, Wall Street is bracing for the release of June Consumer Price Index (CPI) data and the start of bank earnings season on Tuesday, which could add to volatility.

Similar Moves in the Sector

Other semiconductor stocks, including AMD (AMD), Intel (INTC), and Micron (MU), also declined, though less severely, as investors worried about the impact of geopolitical tensions on global supply chains.

What This Means for Investors

Investors should closely monitor geopolitical developments, especially regarding the Strait of Hormuz, as any escalation could lead to further volatility in equity and commodity markets. Additionally, CPI data and bank earnings will be key near-term catalysts.