The Short Answer
Lumentum's business activity is qualitatively halal, but its current quantitative asset-based screen fails. The March 28, 2026 filing shows debt/assets of 46.70%, liquidity/assets of 45.14% and receivables plus cash/assets of 43.53%.
Current quantitative Sharia screen
Based on 10-Q figures for the period ended 2026-03-28; calculated 2026-07-15.
3,281.8 / 7,027.9
3,172.3 / 7,027.9
3,059.4 / 7,027.9
14.9 / 808.4
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.70%, liquidity/assets is 45.14% and receivables-plus-cash/assets is 43.53%; debt, liquidity and receivables exceed examined limits. Income is 1.84% of revenue.
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.70%, liquidity/assets is 45.14% and receivables-plus-cash/assets is 43.53%, above the examined MSCI total-assets limits; this is not an index-membership claim.
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.70% and liquidity/assets is 45.14%, above the examined Malaysia limits; this is not an official classification.
- Financial
- Not calculated
- Overall
- Fails
A licensed historical market-cap series is not stored; the asset-based debt and liquidity screens already fail.
Business-activity disclosure
Lumentum designs optical, photonic and laser components for cloud, AI/ML, telecom, consumer and industrial applications. The technology activity is generally permissible, while customer and end-use revenue is not reduced to a universal prohibited-revenue numerator.
Limitation: The filing does not classify every optical, telecom, consumer or industrial end use by a universal Sharia category; activity remains qualitative.
Purification
Lumentum discloses $14.9 million of interest and investment income for the quarter, but ZakatInvest does not prescribe a scholar-approved purification percentage.
Inputs, assumptions and primary sources
- Amounts are USD millions from Lumentum's March 28, 2026 Form 10-Q.
- Debt includes $3,238.6 million current borrowings and $43.2 million long-term debt; operating lease liabilities are excluded.
- Cash is $2,617.8 million and short-term investments are $554.5 million.
- Net accounts receivable is $441.6 million and third-quarter revenue is $808.4 million.
- The filing reports $14.9 million of interest and investment income on cash equivalents and short-term investments for the quarter; no fixed purification percentage is prescribed.
- Optical, photonic and laser components are generally permissible, but telecom, data-center, consumer and industrial end uses remain qualitative.
This is a reproducible financial screen, not a fatwa. A failed total-assets screen can coexist with a pass under a market-cap methodology. ZakatInvest keeps the qualitative assessment separate so numerical thresholds do not erase material context.
Designing and manufacturing optical and laser components is generally permissible at the activity level. Lumentum carries substantial debt and short-term investments; the filing reports interest and investment income of 1.84% of quarterly revenue and no universal prohibited-revenue numerator is disclosed.
Sharia Screening Methodology
Islamic scholars use several criteria to screen stocks:
- Business activity screen: Is the company's primary business halal?
- Debt ratio: Total debt / market cap must be under 33%
- Interest income: Interest income / total revenue must be under 5%
- Haram revenue: Revenue from haram sources must be under 5%
- Receivables ratio: Total receivables / total assets must be under 49–70% (varies by board)
Lumentum's Business Activity
Lumentum designs and manufactures the optical and photonic technology that moves data and powers lasers. Its products include:
- Cloud & networking: Optical transceivers and components for data centers and telecom
- 3D sensing: Lasers used in consumer-device sensing
- Lasers: Industrial and commercial laser systems
Designing and manufacturing these components is permissible at the activity level — they are general-purpose technology hardware.
Concerns to Be Aware Of
1. Convertible Notes (Debt)
Lumentum reports $3,281.800 million of debt against $7,027.900 million of assets (46.70%), above the examined asset-based debt limits. Convertible and other borrowings are interest-bearing instruments; a market-cap denominator is not calculated here.
2. Interest Income
Cash and short-term investments total $3,172.300 million, or 45.14% of assets, above the examined liquidity limits. Interest and investment income is $14.900 million for the quarter, or 1.84% of revenue; ZakatInvest does not prescribe a fixed purification percentage.
3. Cyclicality and Concentration
Lumentum has exposure to cyclical telecom markets and concentrated data-center customers, so revenue and margins can be volatile. This is a business and valuation consideration rather than a Sharia screen concern.
Filing-Based Ratios (March 28, 2026)
These calculations use Lumentum's third-quarter fiscal 2026 Form 10-Q and total-assets denominators:
- Debt / assets: 46.70% — fails the examined debt limits
- Cash + securities / assets: 45.14% — fails the examined liquidity limits
- Receivables + cash / assets: 43.53% — fails the examined MSCI limit
- Interest and investment income / revenue: 1.84%; no fixed purification percentage asserted
Methodology Interpretation
On the stored total-assets calculations, FTSE Yasaar, MSCI Islamic and Malaysia SAC financial screens fail on debt and/or liquidity. These are comparisons with published methodologies, not claims of index membership or an external agency verdict.
Bottom Line
Lumentum (LITE) has a generally permissible optical-components business, but the current filing-based quantitative screen fails because debt/assets, liquidity/assets and receivables plus cash/assets exceed the examined limits. This is not a universal halal certification; investors should consult a qualified scholar and review updated filings.
For Muslim investors seeking optical- and semiconductor-technology exposure, LITE sits alongside other halal-screened names like Coherent (COHR) and NVIDIA (NVDA).
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