Lumentum stock surged 769% over the past year as the company struggled to meet massive demand for its AI-enabling indium phosphide lasers and EML chips.

Key Points

• Lumentum management warned of supply shortages for EML chips as early as November 2024, projecting constraints through 2026.
• The company’s Cloud & Networking segment revenue grew 16% year-over-year in the fiscal third quarter of 2025.
• Trailing-twelve-month revenue growth reached 3.6%, reversing a previous three-year trend of 3.4% annual declines.
• Options traders underestimated the potential for a price surge, with implied volatility dropping to the 17th percentile shortly before the stock's rally.
• Lumentum’s specialized components serve as critical infrastructure for the rapid expansion of AI data centers.

Why it Matters

Lumentum’s performance highlights how supply chain bottlenecks in the semiconductor sector can create significant investment opportunities during the ongoing artificial intelligence boom. The company's experience demonstrates that clear management signals regarding production capacity can sometimes be overlooked by the broader options market, leading to sudden and substantial stock repricing.