In-depth Analysis of Semiconductor Market in October 2026: Sustained AI Demand Explosion, Price Divergence in Mature Processes, Structural Opportunities for Vietnam's Supply Chain

As 2026 enters the fourth quarter, the global semiconductor market presents an unprecedented complex landscape. Driven by the continuous advancement of artificial intelligence (AI) technology, the semiconductor industry is undergoing profound changes. This article will conduct an in-depth analysis of the latest dynamics in the current semiconductor market, exploring how AI demand is reshaping the market structure, the price divergence trend between mature and advanced processes, and the strategic opportunities faced by Vietnam's semiconductor supply chain in this round of industrial transformation.

1. Sustained AI Demand Explosion: The Golden Age of Advanced Processes

In 2026, AI technology has transitioned from concept to widespread application, becoming the core engine driving the growth of the semiconductor industry. From cloud data centers to edge computing devices, the demand for AI chips is experiencing explosive growth. According to data from market research institutions, the global AI chip market size is expected to reach $150 billion in 2026, a year-on-year increase of 35%, with advanced process chips accounting for over 60%.

In the advanced process field, 3nm and 2nm processes have become the focus of competition among major wafer foundries. Leading enterprises such as TSMC, Samsung Electronics, and Intel have increased their investments in advanced processes, with full capacity utilization until 2027 becoming the norm. Particularly, AI training and inference chips, with their continuously rising requirements for computing power and energy efficiency, are driving the continuous upgrading of process technologies.

Notably, AI chip design is evolving towards heterogeneous computing, combining multiple processor units such as CPU, GPU, and NPU to handle different types of AI workloads. This trend not only increases the complexity of chip design but also further boosts the demand for advanced processes. Meanwhile, the rise of Chiplet technology (small chips) has provided a new development path for advanced processes, allowing chips with different process nodes and functions to be integrated through advanced packaging technology, reducing costs while improving performance.

In terms of market demand, in addition to traditional cloud computing and data centers, the application of AI in fields such as autonomous driving, smart healthcare, and industrial automation is expanding rapidly. Especially in the automotive electronics sector, as the penetration rate of smart cars increases, the demand for high-performance computing chips has surged, becoming a new growth point for the semiconductor market. It is predicted that by 2027, the automotive electronics chip market size will exceed $100 billion, with AI chips accounting for over 40%.

2. Price Divergence in Mature Processes: Reshaping of Supply-Demand Landscape

In sharp contrast to the boom in advanced processes, the mature process market is experiencing a complex situation of price divergence. In the third quarter of 2026, wafer quotations for mature processes (28nm and above) showed a clear divergence trend: prices of some products continued to rise, while others softened.

On the demand side, mature process chips still hold an important position in traditional automotive electronics, industrial control, and consumer electronics. Especially with the acceleration of global automotive electrification and intelligence, the demand for mature process chips such as MCUs, power devices, and sensors has maintained steady growth. Additionally, the continuous construction of 5G communication infrastructure has also provided a stable market demand for mature process chips.

However, changes on the supply side are reshaping the market landscape. On one hand, major global wafer foundries such as TSMC, Samsung, and UMC are adjusting their capacity layouts, shifting more resources to advanced processes, leading to a slowdown in the growth of mature process capacity. On the other hand, wafer foundries in mainland China, such as SMIC and Huahong Semiconductor, are expanding their mature process capacity to fill market gaps.

This supply-demand change has led to divergent price trends across different product lines. For automotive electronics and industrial control chips with strong demand, prices remain firm or even rise; while for some mature process chips in the consumer electronics sector, due to intensified market competition and weak demand, prices have softened. This divergence trend is expected to continue until 2027 and may even intensify further.

Notably, another important trend in the mature process market is the recovery of 8-inch wafer production lines. Due to the cost advantages of 8-inch wafers in power devices, analog chips, and other fields, many manufacturers are reinvesting in 8-inch production lines to meet the demand of specific markets. This trend has injected new vitality into the mature process market and also provided development opportunities for emerging semiconductor production bases like Vietnam.

3. Vietnam's Semiconductor Supply Chain: Strategic Opportunities Emerge

Against the backdrop of global semiconductor supply chain restructuring, Vietnam, with its unique geographical location, cost advantages, and government policy support, is gradually becoming an important participant in the global semiconductor industry. In 2026, Vietnam's semiconductor supply chain has ushered in unprecedented development opportunities.

First, the Vietnamese government has listed the semiconductor industry as a national strategic priority, introducing a series of preferential policies and support measures. In September 2026, the Vietnamese government officially released the "Vietnam Semiconductor Industry Development Strategy (2026-2030)", which clearly states that by 2030, Vietnam will be built into an important semiconductor production base and export center in Southeast Asia. The strategy includes multiple aspects such as tax incentives, land use benefits, and talent training support, providing strong guarantees for semiconductor enterprises investing in Vietnam.

Second, Vietnam has already established a certain foundation in the semiconductor packaging and testing sector. Currently, Vietnam hosts several internationally renowned semiconductor packaging and testing enterprises, such as Samsung Electronics, Intel, and Amkor Technology. The presence of these enterprises has laid the foundation for the further development of Vietnam's semiconductor supply chain. As the trend of global semiconductor industry shifting to Southeast Asia intensifies, Vietnam is expected to attract more transfer of packaging and testing capacity.

Third, Vietnam has made significant progress in semiconductor talent training. In 2026, Vietnam has cooperated with multiple international semiconductor enterprises and educational institutions to establish several semiconductor training bases and centers. Especially, the iterative upgrade of the AI Chip Design Bootcamp has cultivated a large number of local semiconductor talents in Vietnam. These talents not only meet the needs of local Vietnamese enterprises but also provide talent support for the global semiconductor industry.

Fourth, Vietnam's geographical location advantage makes it a hub connecting major Asian markets. Located at the center of Southeast Asia, Vietnam is adjacent to major semiconductor consumer countries such as China and India, and has established close economic ties with multiple countries and regions through free trade agreements. This geographical advantage facilitates the export of Vietnam's semiconductor products.

However, the development of Vietnam's semiconductor supply chain also faces some challenges. First, there are technical barriers; Vietnam remains relatively weak in core areas such as semiconductor design and manufacturing, requiring international cooperation and technology introduction to improve. Second, the supply chain support is insufficient; Vietnam's foundation in semiconductor materials, equipment, and other fields is relatively weak, requiring further improvement of the industrial chain. Additionally, talent shortage is also a constraint on Vietnam's semiconductor industry development; although training has made progress, high-end talent is still insufficient.

4. Market Outlook and Investment Recommendations

Looking ahead to the fourth quarter of 2026 and 2027, the global semiconductor market will continue to grow, but the growth drivers and structure will undergo significant changes. Sustained AI demand will continue to drive the development of the advanced process market, while the mature process market will show a divergence trend. In this context, investors need to focus on the following key areas:

Advanced Process Chip Design Companies: As AI applications expand, the demand for high-performance computing chips will continue to grow, and related design companies will benefit from this trend.
Wafer Foundries: Especially those with advanced process capacity will benefit from the growth in AI chip demand. At the same time, foundries with mature process capacity may also gain opportunities in specific markets.
Semiconductor Equipment Suppliers: With the expansion of global semiconductor capacity, especially the increase in advanced process capacity, the demand for equipment will remain strong.
Enterprises Related to Vietnam's Semiconductor: As Vietnam's semiconductor supply chain develops, local related enterprises will迎来 development opportunities, especially in packaging and testing and some mature process fields.
Automotive Electronics Chip Suppliers: As the process of automotive electrification and intelligence accelerates, the automotive electronics chip market will continue to grow, providing opportunities for related suppliers.

For investments in Vietnam's semiconductor supply chain, the following aspects are recommended:

Packaging and Testing Sector: Vietnam has already established a certain foundation in this field, and with the transfer of global capacity, it is expected to further expand its scale.
Mature Process Capacity: Vietnam can leverage its cost advantages to develop mature process capacity suitable for the local market, meeting regional demand.
Talent Training and Education: Semiconductor talent is the key to industrial development, and investing in talent training and education will yield long-term returns.
International Cooperation: By cooperating with international semiconductor enterprises, introducing technology and experience, to accelerate the development of Vietnam's semiconductor industry.

Overall, the global semiconductor market in 2026 is undergoing profound changes, with the explosion of AI demand, price divergence in mature processes, and strategic opportunities in Vietnam's supply chain providing rich opportunities for investors. However, the market also faces uncertainties, and investors need to closely monitor risk factors such as technological development trends, geopolitical changes, and supply chain adjustments to make wise investment decisions.

5. Conclusion

The semiconductor market in October 2026 presents a complex landscape of sustained AI demand explosion, price divergence in mature processes, and structural opportunities for Vietnam's supply chain. In this round of industrial transformation, the advanced process market will continue to benefit from the expansion of AI applications, while the mature process market will show a divergence trend. Vietnam's semiconductor supply chain, with its policy support, geographical location advantages, and talent training progress, is gradually becoming an important participant in the global semiconductor industry.

For investors, it is necessary to deeply understand the driving factors behind market changes, focus on technological development trends and supply chain adjustments, and seize investment opportunities in AI chips, automotive electronics chips, and fields related to Vietnam's semiconductor. At the same time, attention should be paid to market risks, including technical barriers, geopolitical factors, and supply chain uncertainties, to make rational investment decisions.

As 2026 comes to an end, the global semiconductor industry is standing at a new historical starting point. The continuous development of AI technology, the divergence of the mature process market, and the rise of Vietnam's supply chain will bring new growth momentum and investment opportunities to the industry. Only those investors who can accurately grasp market trends and actively respond to challenges can succeed in this round of industrial transformation.