Escalating geopolitical tensions in the Middle East, prolonged uncertainty in the Strait of Hormuz, and emerging concerns about U.S. defense capabilities.

Executive Summary

On April 25, 2026, Middle East geopolitical tensions entered a new phase. Baker Hughes projected that a full reopening of the Strait of Hormuz would be difficult until the second half of 2026, signaling long-term uncertainty in the energy market. Amidst this situation, the White House announced that Kushner and Witkoff would engage in direct talks with Iran in Pakistan, indicating diplomatic efforts. However, the Wall Street Journal (WSJ) reported that the U.S. had depleted 80% of its missile inventory in a war with Iran, stating that this could severely impair the U.S.'s ability to respond to a Chinese invasion of Taiwan, thereby expressing deep concerns about global security.

Background and Context

Middle East geopolitical risks have been a key variable in international oil prices and the logistics market over the past several months. In particular, the Strait of Hormuz is a strategic chokepoint accounting for approximately 20% of global seaborne oil shipments; a blockade or disruption of transport here would have a devastating impact on the global energy supply chain. Despite the recent ceasefire agreement, the prospect of a delayed full restoration of the strait's functionality suggests that the current 'fragile truce' could lead to long-term instability. This is acting as a major factor increasing international oil price volatility and raising maritime transport costs. Simultaneously, reports of the U.S. missile inventory depletion highlight the potential risks of U.S.-China conflict surrounding Taiwan, beyond the Middle East, signaling new repercussions for the global defense industry. While this could be an opportunity for major defense exporting countries, including South Korea, it will also act as a factor further amplifying uncertainty in the global security environment.

Market Impact Analysis

The prolonged instability in the Strait of Hormuz will intensify upward pressure on international oil prices. Rising oil prices increase cost burdens for refining and petrochemical companies but can also have the dual effect of improving refining margins. Maritime transport disruptions raise shipping freight rates, which is positive for shipping companies, but acts as a burden of increased logistics costs for import/export companies. Furthermore, concerns about weakening U.S. defense capabilities could lead to allied nations strengthening their own defense capabilities and increasing arms imports, which could be a positive opportunity for South Korea's defense industry. Increased preference for safe-haven assets could boost demand for gold and some cryptocurrencies like Bitcoin. In the bond market, inflation concerns and safe-haven preferences could conflict, leading to complex interest rate fluctuations.

Key Stock Analysis

• S-Oil (010950) / SK Innovation (096770): Rising oil prices could be positive for improving refining margins, but increased crude oil import costs and the possibility of a global economic slowdown act as burdens. If Middle East instability is prolonged, increased uncertainty could lead to expanded stock price volatility.
• HD Korea Shipbuilding & Offshore Engineering (009540): Rising maritime freight rates and prolonged logistics disruptions could lead to increased demand for new oil tankers and container ships, positively impacting the shipbuilding industry.
• Korean Air (003490): Rising oil prices directly lead to increased aviation fuel costs, negatively impacting profitability. While some of this can be offset by fare increases, the possibility of an overall contraction in air travel demand must also be considered.
• Hanwha Systems (272210): Concerns about the depletion of U.S. missile inventory could lead to allied nations, including South Korea, strengthening their defense capabilities and increasing arms imports, expanding export opportunities for South Korean defense companies.

Future Scenarios

The optimistic scenario is that high-level talks between the U.S. and Iran achieve substantial results, leading to a de-escalation of tensions in the Strait of Hormuz and stabilized oil prices. In this case, global economic uncertainty could dissipate, and risk asset preference could recover. Conversely, the pessimistic scenario is that talks fail or instability in the Strait of Hormuz further intensifies, causing oil prices to surge and global supply chains to be severely disrupted. This could exacerbate global inflationary pressures and heighten recession concerns. Investors should pay attention to the progress of future U.S.-Iran talks, changes in actual shipping volumes through the Strait of Hormuz, and shifts in U.S. defense policy.