Lumentum Holdings Inc.

LITE · NASDAQ · USD

Analysis

Last 4 earnings calls · through Q4 FY2026

Lumentum has turned from a telecom parts supplier into the maker of the lasers inside AI data centres, and revenue, profit and guidance have climbed at every one of the last four calls. The binding limit on it now is what it can build, not what it can sell. How far behind demand is its laser supply today?

  • Every guidance raise has arrived ahead of schedule.

    Revenue crossed a billion dollars a quarter in Q4 FY2026, and the $1.25 billion target set in March is now due a quarter early. Gross margin passed 50%, a level tied to a far bigger business, so the limit here is production, not demand. How much of the Q1 guidance assumes optical switches ship on time?

  • Profit is being lifted by which products ship, not by cost cutting.

    Laser chips sold to other companies grew faster than the finished gear it makes, and the fastest 200-gig versions now bring in a quarter of laser revenue. That mix, plus price rises, lifted gross margin from below 40% to above 50%.

  • Lumentum is turning customers away because it cannot build enough.

    Demand runs 30% ahead of laser supply, and the gap widened as capacity was added. It now picks which customers to serve and signs multi-year deals with them — comfortable, but a ceiling: the cure is new plants that produce only in 2028. How much of the OCS backlog is gated by supply rather than demand?

Bullish
  • Laser demand exceeds supply
    Demand for Lumentum's lasers and transceivers exceeds what the company can build, so growth is set by how fast capacity comes online rather than by customer interest.
  • Repeatedly raised growth targets
    Management has raised its own growth plans repeatedly, dropping an earlier cap on the transceiver business and pulling revenue milestones forward by quarters.
  • New optical product lines
    Optical circuit switches, co-packaged optics and near-packaged optics give Lumentum several separate ways to grow on top of its current components business.
Bearish
  • Hyperscale customer dependence
    Growth now rests on a very small number of hyperscale customers, most of whom buy without long-term contractual commitments and can slow spending quickly.
  • Shipments below demand
    Lumentum ships far less than customers ask for, which gives rivals an opening and leaves reported revenue tied to its own execution rather than to demand.
  • Co-packaged optics timing
    The largest promised growth driver, co-packaged optics, does not ship in volume until late next year, and its timing depends on decisions customers have not finalised.
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Product segmentsGeography
FY2026 · USD

How Lumentum Holdings turned $3.0B of revenue into $524.8M of operating income.

Revenue
Systems$2.0B
Components$1.0B
Total revenue$3.0B
Operating income$524.8M17.4%
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