Key Highlights
- Taiwanese regulators increased the single-stock investment ceiling for domestic funds from 10% to 25%
- TSMC stands as the sole qualifying stock, representing more than 40% of Taiwan’s stock market
- Shares in Taiwan surged 5% to reach an all-time closing high of NT$2,185
- The chipmaker revealed its advanced A13 process technology and confirmed plans for an Arizona packaging plant by 2029
- U.S.-traded ADRs (TSM) advanced 3.3% to $395.49 during premarket hours, continuing to trade at a premium to local shares
Shares of Taiwan Semiconductor Manufacturing Company surged to an all-time high in Taiwan on Friday, propelled by a regulatory adjustment from local authorities alongside announcements regarding advanced chip technology and expanded U.S. operations.
The Financial Supervisory Commission of Taiwan increased the maximum allocation that domestic equity funds and actively managed exchange-traded funds can place in any single stock — raising the limit from 10% to 25%. However, this regulation exclusively applies to stocks representing more than 10% of the Taiwan Stock Exchange’s total value.
Taiwan Semiconductor is the sole company meeting this threshold. The chipmaker’s stock represents over 40% of Taiwan’s equity market by capitalization.
Taiwan Semiconductor Manufacturing Company Limited, TSM
Taiwan-traded TSMC shares advanced 5% to close at NT$2,185, marking a new record high.
American depositary receipts rose 3.3% to $395.49 during premarket trading on Friday. Since each ADR represents five underlying shares, this translates to an implied per-share value of approximately $79.10.
This figure remains elevated compared to the price paid by Taiwan-based investors. A longstanding valuation gap has persisted between TSMC’s Taiwan-listed shares and its ADRs, which typically command a premium due to greater accessibility for global investors. The recent regulatory modification could potentially reduce this disparity over the long term.
Company Introduces A13 Process Technology
The favorable regulatory development wasn’t the sole catalyst behind the stock’s movement. Earlier this week, TSMC introduced its next-generation chipmaking technology engineered to manufacture smaller, faster, and more power-efficient semiconductors.
The chipmaker’s A13 process node — approximately a 1.3-nanometre class technology — represents an enhancement of its predecessor A14 platform. According to the company, it provides roughly 6% greater transistor density along with enhanced power efficiency, while maintaining backward compatibility with current chip architectures.
These advanced process nodes target cutting-edge artificial intelligence and high-performance computing markets, sectors where demand from key clients continues to be robust.
Advanced Packaging Facility Coming to Arizona
TSMC additionally announced expanded manufacturing operations in the United States. The semiconductor giant confirmed its intention to establish an advanced chip packaging facility in Arizona, targeting a 2029 launch.
This new facility will accommodate CoWoS packaging operations and 3D chip integration capabilities — both technologies that have emerged as essential for the sophisticated processors powering modern AI systems.
Advanced packaging has emerged as a significant constraint within the AI supply chain, and the Arizona location is strategically positioned to alleviate this challenge while simultaneously broadening TSMC’s domestic U.S. manufacturing capabilities.
The company currently has wafer fabrication plants under development in Arizona. Incorporating packaging operations would enable TSMC to establish a more comprehensive and integrated manufacturing ecosystem within the United States.
TSMC’s American depositary receipts traded 3.3% higher at $395.49 during Friday’s premarket session.



