Optical fiber stocks surge across Asia after Nvidia earnings beat

Nvidia's ↗ 2.78% record-breaking quarterly results sent ripples through optical communications stocks across Asia and the United States on August 27, as investors bet that surging AI data center investment will fuel demand for fiber optic infrastructure.

South Korean Optical Stocks Surge

South Korea's Daehan Fiber Optics jumped 7.41% to 14,500 won in morning trading on the Korea Exchange, while Bit & Electronics surged 9.49% and Wooriro rose 2.01%. The rally followed overnight gains on Wall Street, where Lumentum ↗ 5.67% closed up 6.04% and Ciena ↗ 5.45% gained 4.22%.finance.biggo

In China, Yangtze Optical Fibre and Cable surged 10% to its daily limit as the CSI300 Index climbed 0.5% and the Shanghai Composite gained 0.6% by midday, with the 5G Communication Index rising 4.3%.fidelity

Nvidia's Record Quarter Sets the Tone

Nvidia reported fiscal second-quarter revenue of $96.22 billion on August 26, more than double the $46.7 billion recorded a year earlier and well above the $92.17 billion consensus estimate compiled by LSEG. Adjusted earnings per share came in at $2.22, beating the $2.10 estimate. The result marked 13 consecutive quarters of record revenue for the chipmaker.kiplinger+1

Despite the beat, Nvidia shares fell in regular trading and slipped further after hours, a sign that investors now demand more than earnings surprises from the AI bellwether.finance.biggo+1

Why Optical Fiber Benefits from AI Spending

Optical fiber and cable play an increasingly critical role in transmitting data between servers inside AI data centers. Training and running large-scale AI models requires faster data transmission speeds and greater capacity within facilities, which translates directly into demand for optical communications components. Nvidia has also moved beyond chip supply to actively support AI data center construction through financial guarantees and funding structures, amplifying expectations for downstream component makers.finance.biggo

The sector's sensitivity to Nvidia results has intensified since CEO Jensen Huang highlighted optical communication as a core technology for next-generation AI infrastructure at GTC 2026 in March, triggering a multi-month rally in related Korean stocks.sedaily