Fujikura increases prices for AI data center cables due to tightening supply.

      **TL;DR** Fujikura is increasing prices for its fibre-optic cables as nearly all US hyperscalers are placing orders amid tight supply. The CEO claims the company will surpass its forecasts, even though shares have dropped 40% since their peak in May.

      Fujikura, the Tokyo-based manufacturer of fibre-optic cables, is raising the prices of the cables that connect servers within AI data centres. CEO Naoki Okada informed Bloomberg that the company is poised to exceed its own projections due to consistent demand from nearly all leading US hyperscalers. "We supply a valuable product," stated Okada. "We will increase prices further."

      **Cables as a Bottleneck**

      AI data centres require significantly more fibre-optic cables than typical cloud facilities. These small glass strands transmit data through light pulses between GPUs, and the large volume of data generated by AI training and inference has made cabling a limiting factor for the speed at which new clusters can be established.

      Fujikura, alongside Japan’s Sumitomo Electric and Furukawa Electric, leads the high-end market segment. The current supply constraints have granted them pricing power that is rare among component suppliers in the AI sector.

      **The Meta and Nvidia Signal**

      US competitor Corning has secured a $6 billion supply agreement with Meta and a separate $500 million stock deal with Nvidia. Both contracts, revealed in recent months, indicate that hyperscalers regard fibre-optic supply as so essential that they are willing to secure long-term capacity at premium prices.

      Okada noted that Fujikura is receiving orders from nearly all US hyperscalers. Some clients have already consented to higher prices for the company's main products, though Okada did not specify which clients or the extent of the price increases.

      **The Stock Decline**

      Fujikura’s shares have fallen over 40% from a peak reached in May. This drop was prompted by annual and three-year profit forecasts that significantly underperformed analyst predictions, raising worries about production capacity constraints, increasing competition, and supply chain issues. Okada described the forecast as intentionally conservative, taking into account worst-case scenarios, including the potential for hydrogen shortages required in the manufacturing of fibre-optic preforms, the glass rods used for cables. "There is no way we will miss our annual forecast," he affirmed.

      **The Quiet Winners of the AI Infrastructure Supply Chain**

      The most prominent beneficiaries of the AI expansion are chipmakers like Nvidia and memory manufacturers like SK Hynix. However, the physical infrastructure—cables, connectors, cooling systems, and power distribution—represents where many of the strictest limitations exist.

      Fujikura’s capacity to increase prices while experiencing a 40% drop in its stock price illustrates a particular narrative: demand is genuine, but the market lacks confidence in the company’s capability to effectively scale up production to meet it. If Okada's price increases and plans for optical component expansion succeed, "the results will be very positive," he expressed. The disparity between that optimism and the stock value defines the risk involved.