Why are optical communication stocks gaining attention in the AI era?

AI requires massive, high-speed data transmission, surpassing electrical interconnect limits. Optical comms are now essential infrastructure.

What are Taiwan's optical communication firms' strengths?

Mass production capability for high-quality optical modules and long-term partnerships with U.S. tech giants ensure technological continuity.

Is this rally temporary?

Demand from AI data centers is expected to grow for years, making this a structural, not just cyclical, upswing.

How should individual investors respond?

Analyze each company's technology and profitability. Avoid overvalued stocks. Focus on long-term fundamentals.

What’s the next tech trend?

Commercialization of silicon photonics and adoption of CPO (Co-Packaged Optics) are the next key milestones.

Spotlight Stocks: Taiwan's Epic Market Rebound Sees Deeply Oversold Optical Communication Stocks Soar, Multiple Hitting Limits

Published Jul 31, 2026 2:24 PM ・ Updated Jul 31, 2026 3:22 PM ・ 4 min read ・ Source: PR Times

Taiwan's stock market surged dramatically today (31), led by a strong rebound in deeply oversold optical communication stocks. Fueled by AI-driven data center expansion and NVIDIA's upcoming Vera Rubin platform entering mass production in July 2026, stocks like Lian-Ya and Guang-Sheng hit their daily trading limits.

Taiwan's stock market witnessed an epic super rebound today (31), as deeply oversold optical communication stocks joined the broad market recovery, sounding the charge for a major comeback. Driven by the AI wave, data center capacity is expanding dramatically, increasing demand for massive data transmission. With NVIDIA's next-generation AI server platform, Vera Rubin, set to enter full-scale mass production starting July 2026, optical communication 'golden girl' stocks such as Lian-Ya (3081-TW) and Guang-Sheng (6442-TW) surged to their daily trading limits immediately after market open. Other stocks including Guang-Huan (3234-TW), Qian-Ding (4908-TW), Shang-Quan (3363-TW), Lian-Jun (3450-TW), Bo-Ruo-Wei (3163-TW), Tong-Xin (6426-TW), Zhong-Da-KY (4977-TW), and Dong-Dian Optoelectronics (6588-TW) also successively hit their upper limits during trading. Huaxing Light (4979-TW) and Lide Optoelectronics (7717-TW)-KY saw gains of 7-8%.

U.S. optical communication manufacturers also rallied collectively last night. Lumentum surged over 15%, Coherent rose 12.16%, and the smaller-cap AAOI posted the strongest gain at 17.76%.

Analysts noted that silicon photonics-related stocks have recently fallen more than 40%. The market anticipates a significant rebound in demand for high-speed optical transmission, benefiting optical module makers, silicon photonics firms, and the high-speed optical communication supply chain. As the market rebounds, capital is flooding into these sectors, though analysts warn investors to avoid chasing stocks at high prices.

Recent market reports indicate that NVIDIA is evaluating the acquisition of long-haul dark fiber assets in the U.S. to build its own high-speed network infrastructure, aiming to solve the data transmission bottleneck in the AI era. In response, financial institutions stated that if such initiatives materialize, they would not only boost demand for optical communication modules and high-speed transmission equipment but also accelerate the commercialization of silicon photonics technology, further expanding business opportunities for optical communication manufacturers.

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Source: PR Times
Category: News
Organizations: Lumentum / Coherent / AAOI

Spotlight Stocks: Taiwan's Epic Market Rebound Sees Deeply Oversold Optical Communication Stocks Soar, Multiple Hitting Limits

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