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primarysourced Photonics sector Lumentum
LITE
~5 min read · 1,071 words ·updated 2026-04-29 · confidence 77%

Margins and pricing

The Lumentum gross-margin and operating-margin recovery from FY2024 trough to Q2 FY2026 is the most operationally informative chart in the LITE thesis. Non-GAAP operating margin moved from 3.0% in Q1 FY2025 to 25.2% in Q2 FY2026 — a 22-point expansion in five quarters. This is the operating-leverage signature of a high-fixed-cost InP fab business absorbing rising volume on a flat or growing ASP base.

Gross-margin trajectory

QuarterGAAP GMNon-GAAP GMDrivers
Q4 FY2024n/an/aTrough; inventory absorption
Q1 FY202523.1%32.8%Trough recovery; low absorption
Q4 FY2025n/a37.8% (+260 bps QoQ, +1000 bps YoY)Cloud datacom strength; mix shift
Q1 FY202634.0%39.4%EML chip mix; AI-pull
Q2 FY202636.1%42.5%200G/lane EML higher ASP; operating leverage

Non-GAAP gross-margin expansion of nearly 10 points between Q1 FY2025 (32.8%) and Q2 FY2026 (42.5%) is driven by:

  1. Volume absorption of fixed fab cost — incremental wafer starts on the existing fab lower per-unit fixed-cost share
  2. Mix shift to higher-ASP products — 200G/lane EML chips command higher ASPs than 100G or 400G-generation chips; 1.6T modules higher ASPs than 800G
  3. Pricing discipline — duopoly market with tight supply allows ASP increases on the leading-edge node; analyst commentary points to double-digit ASP increases on 200G EML in CY2026 (TrendForce December 2025)
  4. Cloud Light scale efficiencies — module-assembly volume in Thailand achieves better unit economics as throughput rises

The Q2 FY2026 non-GAAP gross margin of 42.5% is approaching the FY2021–FY2022 peak (~45%+ pre-correction) and may push higher as 200G/lane EML scales further and 1.6T modules ramp.

Operating-margin trajectory

QuarterNon-GAAP op marginSource
Q1 FY20253.0%Press release ✓
Q4 FY2025~13% (estimated)Implied from FY2025 full-year
Q1 FY202618.7%Q1 FY2026 release ✓
Q2 FY202625.2%Q2 FY2026 release ✓
Q3 FY2026 (guide)30.0%–31.0%Q2 FY2026 release guidance ✓

The Q3 FY2026 guide of 30%+ non-GAAP operating margin is the highest non-GAAP operating margin in Lumentum’s history since the spin from JDSU. The implied trajectory from 25.2% Q2 to 30%+ Q3 is consistent with continuing operating leverage on the $805M revenue-guide midpoint.

InP EML ASP dynamics

The 200G/lane EML chip is the highest-ASP product in the Lumentum portfolio. Approximate per-chip ASP framework (⚠ inferred from industry trade press; not formally disclosed):

GenerationTypical ASP range per chipUse case
100G EML$5–10Legacy datacom, telecom
200G EML$20–50800G modules (DR8, FR8)
200G/lane current generation$50–100+1.6T modules, AI-cluster spine
1.6T-class modulators$100–200+Leading-edge AI

⚠ ASP figures are aggregated from industry-trade-press estimates and supplier-conference-call commentary; not validated against primary disclosures (which are confidential).

The supply-constrained pricing regime of CY2026 supports double-digit ASP increases at the leading edge. With the NVDA capacity build dedicated to the 200G/lane node, and merchant demand absorbing the rest of the duopoly’s output, the ASP-uplift dynamic should persist through FY2027.

Transceiver-module gross-margin profile

Cloud Light heritage finished-module gross margins are structurally lower than chip-layer gross margins:

  • 800G transceiver module gross margin (industry typical): 25–35%
  • 1.6T transceiver module gross margin: 30–40% (less commoditized at launch)
  • ZR/ZR+ DWDM pluggable margins: variable by spec; 30–45% range
  • CPO modules (future): TBD; likely higher at launch but compresses faster

Cloud Light’s contribution to consolidated gross margin is dilutive vs. the chip layer, but accretive to absolute gross profit dollars — and the strategic value of the Cloud Light business is hyperscaler-direct relationships and finished-module optionality, not gross-margin enhancement.

The operating-leverage mechanic

Lumentum’s operating-leverage profile is steep because:

  • Fab fixed costs are large — InP fab depreciation, clean-room operations, MOCVD reactor utilization
  • Variable costs at the chip layer are modest — once the fab is running, incremental wafers consume modest variable input cost
  • Revenue growth is materially exceeding opex growth — opex (R&D, SG&A) is growing single-digits while revenue is growing 50%+ YoY

Key insights from the FY2025 → FY2026 trajectory:

  • Each $100M of incremental revenue translates to roughly $30–40M of incremental gross profit at the current GM level
  • Each $100M of incremental gross profit drops $80–90M to non-GAAP operating income (modest opex growth)
  • This implies incremental operating margin on next-marginal revenue of 25–35%

By Q3 FY2026 ($805M guide), Lumentum’s incremental operating-leverage drop-through could push non-GAAP operating margin from 25.2% to 30%+ — and the next 12 months of revenue ramp (from $805M quarterly run rate to $1.25B / $2.0B targets) implies non-GAAP operating margin north of 35% at the upper end. This is the basis for management’s $30+ EPS-by-2028 framing.

Margin-trajectory risks

  1. Capex / depreciation drag — once the new San Jose fab depreciation hits the income statement (FY2027–FY2028), it adds a fixed-cost headwind to GAAP gross margin. Non-GAAP margin (which excludes some of this) is less affected. The capex efficiency on the new fab needs to be validated as it ramps.
  2. Mix headwind from CPO transition — if CPO modules (lower module-assembly revenue per port-equivalent than pluggables) replace pluggables faster than expected, blended module-segment gross margin compresses. This is partially offset by the higher EML-chip content per CPO module.
  3. Pricing discipline cracks — most credibly, this would happen if a third source enters the merchant EML duopoly (Sumitomo, HG Genuine via Western channels) or if hyperscaler vertical-integration pulls EML chip volume out of the merchant market. Neither is a near-term event.
  4. Hyperscaler-driven ASP renegotiation — large customers periodically push for price concessions on volume contracts. The current supply-constrained regime limits hyperscaler leverage; this could shift if the industry transitions to oversupply in 2027–2028.

Sources