Iran War Fuels AI Chip Supply Fears, Stocks Brace for Impact

Iran War Sparks AI Chip Supply Chain Concerns

The escalating conflict involving the United States, Israel, and Iran is sending shockwaves through global markets, impacting more than just oil prices. This geopolitical tension is directly threatening critical supply chains for artificial intelligence (AI) chips, a sector poised for massive growth. Investors are watching closely as key resources essential for chip manufacturing face potential disruptions, creating both risks and opportunities.

Critical Resources at Risk Through Strait of Hormuz

The Strait of Hormuz, a vital waterway between Iran and Oman, is central to this crisis. Approximately 20% of the world’s oil shipments pass through daily. However, the conflict’s impact extends far beyond oil. The strait is also a crucial transit point for liquefied natural gas (LNG), helium, sulfur, and bromine – all essential components for the AI chip industry.

Oil price spikes increase the cost of transportation and energy for every step of the chip-making process. LNG is vital for powering the electricity grids in South Korea and Taiwan, where most advanced chips are produced. Helium is indispensable for cooling machinery and maintaining the ultra-clean environments needed for chip fabrication. Sulfur is used to create the sulfuric acid that cleans silicon wafers and is also key in copper extraction, a metal found in every chip and cable.

Bromine compounds are used in critical lithography and etching processes within chip factories. Disruptions to any of these five resources could significantly hamper chip production. Market US projects the global AI market to grow nearly 19 times in size over the next nine years, with an annual growth rate of 38.5% through 2034. However, these supply chain threats loom large over this projected expansion.

Timeline of Escalation and Market Reactions

The situation began to seriously escalate on March 2nd, when Iran reportedly closed the Strait of Hormuz, and Qatar Energy halted natural gas and helium exports from the region. This move immediately impacted roughly 20% of global oil and natural gas, about 30% of helium, and close to half of all seaborn sulfur and bromine. Chip manufacturers in Taiwan and South Korea, reliant on these supplies, found themselves on borrowed time.

By March 4th, Qatar Energy declared force majeure, a legal clause that frees parties from liability when an extraordinary event prevents them from fulfilling contracts. This declaration signaled that shipping and tanker contracts could not be honored. Consequently, shipping insurance prices soared, making passage through the Strait economically unviable. Buyers in key chip-producing regions scrambled for new, more expensive contracts.

Further escalation occurred around March 18th-19th when Iranian missiles struck a natural gas facility in Qatar, reducing its export capacity for potentially several years and constraining helium production. This event underscored that even if the war ends quickly, disruptions to LNG and helium supplies could persist for a long time.

By the end of March, shipping data revealed a stark reality: no LNG tankers passed through the Strait of Hormuz, and oil traffic was a mere fraction of normal levels. All five critical supply lanes were confirmed to be disrupted.

Impact on Key Semiconductor Companies

The vulnerability of chipmakers varies. Companies in South Korea and Taiwan, such as Samsung, SK Hynix, and TSMC, face the highest risk due to their heavy reliance on supplies passing through the Strait of Hormuz. These companies are major suppliers of high-bandwidth memory (HBM) and other critical components for AI leaders like Nvidia, AMD, and Google.

Samsung and SK Hynix, in particular, are exposed to material shortages and potential power disruptions. If supplies remain constrained, they may prioritize higher-margin HBM products, potentially impacting the availability of other memory types. TSMC, while also exposed, reportedly has several months of helium reserves and greater flexibility to pass on increased costs to customers, reducing the risk of a complete production shutdown.

In contrast, US-based companies like Micron and Intel, along with European firms like ASML, face lower direct supply risks. They have better access to domestic energy and helium. While they will likely experience higher costs, their primary challenge will be protecting profit margins rather than securing supply. ASML, as the sole supplier of crucial EUV lithography machines, is seen as a relatively safe bet, especially if capital expenditure shifts towards less vulnerable regions.

Potential Scenarios and Investment Considerations

Three primary scenarios are emerging for investors:

• Near-Term Resolution: A ceasefire or agreement within the next one to two months could lead to a market relief rally as fears subside.
• Long-Term Conflict: A protracted war where the Strait of Hormuz remains largely closed would increase input costs for chipmakers, pressuring margins. Companies like Micron and ASML, with more secure supply chains, could benefit as investment shifts to safer regions.
• Near-Term Escalation: Further destruction of infrastructure and economic unviability of shipping could cause institutional investors to reduce risk. In this scenario, stocks like Micron and ASML might be attractive buys, with Micron’s US base and sold-out HBM4 capacity for 2026 offering a strong position.

The conflict highlights the interconnectedness of global supply chains and the critical nature of resources previously taken for granted. While the AI sector’s long-term growth prospects remain strong, short-term supply chain vulnerabilities present significant challenges and potential investment pivots.

Source: The US Iran War Will Make (Smart) Investors Rich – Here's How (YouTube)