Energy shock rattles Asian equities

The escalation in the Middle East is sending shockwaves through Asian financial markets. South Korea has been particularly affected: the benchmark Kospi index temporarily fell by more than 12%, marking one of the largest single-day losses in its history.

The sell-off spread across the region. Major stock markets in Japan, Taiwan and China also recorded significant declines as investors reassessed geopolitical risks and the potential impact on energy prices and global trade.

Energy dependence amplifies market reaction

Countries heavily dependent on imported energy are particularly vulnerable to rising oil prices. South Korea is one of the world’s largest energy importers, meaning higher oil costs can quickly affect industrial production and economic growth.

Concerns about disruptions to key shipping routes — especially the Strait of Hormuz — are intensifying those fears. A significant share of global oil shipments passes through this narrow waterway, so any restriction could immediately affect energy supply and global inflation.

Technology stocks hit hardest

In South Korea the sell-off hit large technology companies especially hard. Market heavyweights such as Samsung Electronics and SK Hynix lost significant value and pulled the broader index lower.

At the same time, large capital outflows from international investors accelerated the downturn. Billions of dollars were withdrawn from the Korean stock market within a short period, while the South Korean won also came under pressure.

Markets reassess geopolitical risks

Analysts say investors are now reassessing geopolitical risks on a broader scale. Initial expectations of a short military confrontation are giving way to concerns about a prolonged crisis with potential consequences for energy supply, inflation and global economic growth.

The sharp reaction in Asian markets illustrates how quickly geopolitical tensions can translate into financial volatility — particularly in export-driven economies that rely heavily on stable global trade and energy imports.

SK