Lumentum Sold Out Through 2029 as AI Demand for Optical Components Explodes

Lumentum Faces Unprecedented AI Infrastructure Demand

Lumentum Holdings announced its optical components are completely sold out through early 2029, driven by explosive demand from technology companies building faster AI data centers1

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. CEO Michael Hurlston disclosed in a Tokyo interview on Friday that the company cannot satisfy approximately 70% of demand for some products through next year, while supply shortfalls for certain other products will persist through 20281

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. The constraints have significantly worsened from six months ago, when Hurlston had indicated capacity would be fully committed by 2028, meaning the sold-out horizon has now extended by roughly a year4

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Supply Crunch Highlights Critical Role in AI Infrastructure

The San Jose, California-based company supplies advanced indium phosphide devices used in high-speed cloud computing and data transmission, components that have become critical for AI infrastructure demand1

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. Lumentum received a $2 billion investment from Nvidia earlier this year, along with rival Coherent, underscoring the strategic importance of optical components for AI servers1

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. Analysts on average expect Lumentum's sales to more than double this year, reflecting the intensity of surging demand from AI data centers3

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Aggressive Capacity Expansion Struggles to Keep Pace

Lumentum has scaled production at its Tokyo-area factory by a factor of twelve over the past two years in an effort to close the gap with customer orders1

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. The company plans to invest at least $350 million in that site and a neighboring facility, and has added capacity at its Caswell, England facility1

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. Hyperscalers have agreed to take on some of the capital expenditure risk to secure supply. "These hyperscalers are willing to put money behind it," Hurlston said1

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. The company has also added a fabrication facility in Greensboro, North Carolina, and is expanding capacity at a second fab in Japan4

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Long Lead Times Delay Relief Until 2030

Building new production capacity takes three to five years for companies like Lumentum, and Hurlston cautioned that new laser capacity takes approximately three years to reach customers, placing meaningful relief no earlier than 2029-20301

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. "We are really trying to catch up, add capacity as fast as we can, but we are very, very far behind what customers want," Hurlston told Bloomberg. "We are completely sold out, so there's no end in sight"1

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. Expanding the company's product lineup will require an acquisition, with Hurlston indicating the company would like to add additional capability within the next year1

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Market Response and Broader Sector Impact

Lumentum stock surged 7% following the CEO's comments, with shares having roughly tripled this year2

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. The announcement triggered a broad rally across photonics and optical networking stocks, with Applied Optoelectronics, Coherent, Corning, and others following Lumentum higher2

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. The Roundhill Photonics & Optics ETF rose 3%2

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. The supply crunch could deepen if the U.S. moves forward with a reported ban on new Chinese optical transceiver models, as Lumentum and Coherent would not be able to fill the gap left by Chinese manufacturers such as Innolight1

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. Lumentum's Sagamihara facility is one of the world's most advanced indium phosphide device production sites, with optical expertise tracing back to its 2018 acquisition of Oclaro Inc.1

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