Taiwan Copper Foil Substrate Leader's Stock Plummets Amid Market Rumors

Despite the broader Taiwan stock market reaching new highs, shares of Taiqiao Electric (2383), a global leader in copper foil substrates (CCL), experienced a significant downturn, nearing the daily limit. The sharp decline, which saw the stock break through key moving averages, has been attributed to market speculation regarding Nvidia's future platform.

Concerns are circulating that Nvidia's next-generation Rubin Ultra platform might adopt a "PTFE (polytetrafluoroethylene) with silica filler" non-woven technology. This potential shift could lead to a reduced demand for traditional copper foil substrates, a core product for Taiqiao Electric.

Industry sources, however, suggest that the PTFE solution being tested is a transitional one, requiring materials like Taiqiao Electric's M9 grade. While PTFE primarily addresses signal loss in high-speed transmissions, its use as a replacement for glass fabric faces significant challenges. These include difficulties with drilling thermoplastic materials and limitations in existing high-temperature lamination capacity, making its mass production uncertain.

The stock's drop also coincided with heavy selling pressure ahead of Taiqiao Electric's ex-dividend date. The company is set to distribute 25 New Taiwan dollars per share in cash dividends tomorrow. The stock closed down 6.53% at NT$551.0, with trading volume significantly increasing compared to the previous day.