LITE

Lumentum is a real, improving business riding a real tailwind. FY2025 revenue reaccelerated to $1.65B (+21% YoY) after the FY2024 trough of $1.36B, gross profit jumped +82.9% to $460M, and the company swung back to GAAP profitability at $25.9M net income (+104.7%) from -$547M a year earlier. The MD&A is credible on the driver: 'AI/ML has caused a dramatic surge in the growing demands on data networking in cloud data centers and accelerated the usage of optical components and modules,' and the Cloud & Networking segment supplies exactly the optical chips, modules and DCI links that hyperscaler AI build-outs consume. Operating cash flow rose to $126M (+411%). This is a turnaround with a tangible catalyst, not a value trap on the fundamentals alone.

The problem is entirely the price. At $850 the stock carries a P/E of 2,297x trailing diluted EPS of $0.37 and a P/S of 36.1x on $1.65B of revenue — multiples that imply not just continued growth but a fundamental, sustained step-change in margins and scale. Yet operating income is still negative at -$180M (operating margin -10.9%); the reported net profit rests on a razor-thin 1.6% net margin and a 2.3% ROE. Free cash flow is negative: capex of $231M (+73.7%) exceeds the $126M of operating cash flow, meaning the AI capacity ramp is being funded externally. There is no earnings or cash-flow anchor here that supports anything close to a $59.4B market cap.