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Lumentum shares rose 8% despite reporting a $7.2 billion GAAP net loss, which was primarily a one-time, non-cash $7.8 billion charge from converting convertible notes into stock. The optical components maker's fiscal fourth-quarter revenue jumped 109% year-over-year to $1.01 billion, exceeding analyst expectations of $988 million. Non-GAAP earnings reached $3.23 per share, up from $0.88 the previous year. Operating margin expanded to 36.6% from 15.0%. Excluding the conversion charge, the company posted $279 million in GAAP operating income. CEO Michael Hurlston attributed growth to AI-driven demand for optical links in data centres. The company guided first-quarter fiscal 2027 revenue between $1.225 billion and $1.275 billion, reaching its target model ahead of schedule.

Lumentum reported fiscal fourth-quarter revenue of $1.01 billion, up 109% year-over-year and 23% sequentially, driven by AI data centre demand for optical components. Chief Executive Officer Michael Hurlston attributed the surge to optical links meeting AI workload requirements for speed and bandwidth. Components revenue reached $649.4 million, rising 103% annually. Systems revenue was $356.9 million, up 123% year-over-year, with cloud transceivers and optical circuit switches driving growth. Non-GAAP gross margin reached 50.4%, up 1,260 basis points annually. Non-GAAP net income was $326.3 million, or $3.23 per diluted share. The company recorded a GAAP net loss of $7.2 billion after a $7.8 billion non-cash charge related to convertible note conversion, whilst reducing debt by $1.1 billion.

Lumentum earnings, revenue top estimates as new products ramp. Lumentum Holdings (LITE) on Tuesday reported fiscal fourth-quarter earnings and revenue that topped consensus estimates amid high expectations. The company's fiscal first-quarter 2027 guidance for Lumentum stock came in slightly above views. For the three months ended June 30, Lumentum earnings on an adjusted basis jumped 267% to $3.23 per share. Revenue climbed 109% to $1 billion. Before the Lumentum earnings report, analysts estimated earnings per share of $2.97 on revenue of $988 million. For the current quarter ending in September, Lumentum predicted revenue in a range of $1.225 billion to $1.275 billion, vs. estimates of $1.157 billion. For fiscal 2027, analysts model earnings per share of $18.58, up 126%, with revenue rising 89% to $5.673 billion. Lumentum stock: AI data centers. While Lumentum still sells fiber-optic devices to telecom companies, its new growth engine has been internet giants and cloud-computing service providers. They're deploying clusters of artificial-intelligence computer servers in data centers that require superfast optical communications. On the stock market today, Lumentum stock wavered, last down a fraction at 819 in extended trading. Heading into the Lumentum earnings report, shares had popped 124% in 2026. But shares were down more than 23% from an intraday high of 1,085 set on May 12. Lumentum stock jumped 339% last year. Lumentum's main challenge has been meeting demand. It's building a new U.S. factory in Greensboro, N.C. Product roadmap. Lumentum has told Wall Street analysts that its optical transceiver business will boom over the next four to five quarters as the company moves past engineering and manufacturing delays. Google is among new customers for next-generation optical transceivers, analysts say. Another new technology, optical circuit switches, are expected to start contributing materially to revenue in late 2026. Longer range, a shift to copackaged optics is expected in data centers. Nvidia supports CPO technology. In addition, Lumentum sells optical communications and commercial lasers for manufacturing, inspection and life-science applications as well as 3D sensing for consumer electronics. Its other products include diode light sources for a variety of automotive, consumer and industrial applications. Telecom and industrial customers still account for over 50% of Lumentum's revenue. Also, Lumentum customers include Nvidia (NVDA) and Alphabet's (GOOGL) Google. Meanwhile, Lumentum competes with Chinese optical module players as well as Coherent (COHR) and Broadcom (AVGO). Lumentum stock technical ratings. Further, Lumentum has been a consolidator in the fiber-optic components industry. And it sells Apple (AAPL) optical components used in iPhones. But laser chips are the company's new growth engine. Meanwhile, IBD's Telecom-Fiber Optics group ranks No. 34 out of 145 groups tracked. Applied Optoelectronics (AAOI), another member of the group, reports earnings on Thursday. Lumentum stock holds an Accumulation/Distribution Rating of D-, according to IBD Stock Checkup. That rating analyzes price and volume changes in a stock over the past 13 weeks of trading. A+ signifies heavy institutional buying; E means heavy selling. Think of a C grade as neutral. Also, Lumentum stock holds an IBD Composite Rating of 87 out of a best-possible 99. IBD's Composite Rating combines five separate proprietary ratings into one easy-to-use rating. The best growth stocks have a Composite Rating of 90 or better. Follow Reinhardt Krause on X, formerly Twitter, @reinhardtk_tech for updates on artificial intelligence, cybersecurity and cloud computing. YOU MAY ALSO LIKE: