Lumentum Holdings Inc.

(NASDAQ Global Select)
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Bullish +65

Arm vs. Lumentum: Which Tech Stock Is a Better Buy in 2026?

AI infrastructure AI-generated analysis

πŸ“ˆ Arm Holdings reported fiscal 2026 revenue of $4.9 billion, representing nearly 23% growth compared to the prior year.

πŸ’° Lumentum Holdings achieved a massive 83% increase in revenue to $3 billion for fiscal 2026 despite a non-recurring net loss.

πŸ“‰ Arm maintains a low debt-to-equity ratio of 0.1x and strong liquidity with a current ratio of 5.3x.

⚠️ Lumentum carries a higher debt-to-equity ratio of 0.4x and faces risks from customer concentration and trade controls.

πŸ“Š Analysts expect Arm to grow earnings at 25% annually while projecting 132% annualized growth for Lumentum.

πŸ’΅ Lumentum trades at a forward PEG ratio of 0.29x, significantly lower than Arm's forward PEG ratio of 4.3x.

πŸš€ Lumentum revenue surged 109% year-over-year in the recent quarter due to data center shifts to optical connectivity.

βš–οΈ The article recommends Lumentum as the better buy based on valuation discrepancy and faster growth potential.

Bullish Signals
  • Lumentum reported fiscal 2026 revenue of $3 billion, an increase of about 83% over the prior year.
  • The company achieved positive operating profit of $525 million despite a non-recurring net loss due to debt extinguishment.
  • Lumentum is expected to deliver 132% annualized earnings growth as the business scales and expands margins.
  • Revenue surged 109% year over year in the recent quarter, marking the eighth consecutive quarter of growth.
  • The company benefits from data centers shifting to optical connectivity for AI workloads.
Risk Factors
  • Customer concentration adds risk as Customer A accounted for approximately 26.6% of revenue and Customer B for roughly 15%.
  • Many customer relationships lack long-term volume commitments, creating potential revenue instability.
  • The company is subject to complex trade policies and export controls specifically regarding operations in China.
  • Competition from global firms exerts constant pressure on pricing and operating margins.
Full Analysis
The article compares Arm Holdings and Lumentum Holdings as investment options for the AI infrastructure sector, highlighting their distinct business models. Arm generates revenue through licensing fees and royalties on chip designs, achieving fiscal 2026 revenue of $4.9 billion with a net margin of roughly 14%. The company maintains a strong balance sheet with minimal debt and significant free cash flow, though stock-based compensation inflates reported cash generation figures. Lumentum Holdings manufactures optical components essential for data center communication, reporting fiscal 2026 revenue of $3 billion which grew approximately 83% year-over-year. Despite this top-line expansion, the company recorded a net loss of roughly $6.9 billion driven by a non-recurring debt extinguishment charge, while maintaining positive operating profit of $525 million. Lumentum faces customer concentration risks but benefits from a significant valuation discount compared to peers. Analysts project divergent growth trajectories for the two companies, with Arm expected to grow earnings at 25% annually versus Lumentum's projected 132% annualized growth as it scales and expands margins. The article concludes that Lumentum offers superior value due to its attractive forward PEG ratio of 0.29x compared to Arm's 4.3x, driven by accelerating revenue in optical connectivity for AI workloads.