The Short Answer
Onto Innovation stock (ONTO) is generally considered halal by most Islamic scholars and Sharia screening criteria. Onto develops process-control tools, metrology-and-inspection systems, and advanced-packaging-lithography systems for semiconductor manufacturing.
Semiconductor-metrology, inspection, lithography, and process-control-software manufacturing are unambiguously permissible at the activity level. Onto also operates a debt-free, net-cash balance sheet, so the financial screen passes very comfortably.
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)
Onto's Business Activity
Onto Innovation, formed from the merger of Nanometrics and Rudolph Technologies, develops and manufactures:
- Metrology & inspection: Optical-metrology, defect-inspection, and wafer-and-package inspection systems
- Lithography: Advanced-packaging-lithography systems
- Software: Process-control software that integrates and analyzes fab process-control data
These are general-purpose semiconductor-capital-equipment businesses — manufacturing the tools that measure, inspect, and control semiconductor production. This is permissible at the activity level.
Concerns to Be Aware Of
1. Customer Concentration & Cyclicality
Revenue is exposed to the semiconductor-capital-equipment cycle and can be concentrated among a limited number of large fab-and-packaging customers. This is a business-cycle and customer-concentration consideration rather than a Sharia screen concern.
2. Export Controls & Geopolitics
Export-control and geopolitical restrictions on semiconductor equipment can affect specific end-markets. This is a regulatory-and-business consideration rather than a Sharia screen concern.
3. Minor Interest Income
Onto operates a debt-free, net-cash balance sheet, so minor interest income is essentially the only financial-screen consideration — purification of a small portion of any future dividends may be advisable.
Financial Ratios (2025)
Based on Onto's most recent financial statements:
- Total Debt / Market Cap: Effectively zero — debt-free, net-cash ✅
- Interest Income / Revenue: Under 5% ✅
- Haram Revenue: Negligible (semiconductor-capital equipment) ✅
- Business Activity: Permissible semiconductor-equipment manufacturing ✅
Verdict from Major Screening Agencies
Onto Innovation stock is generally screened as compliant (halal) with purification by:
- Zoya App — Compliant with purification ✅
- MSCI Islamic criteria — Generally included ✅
- Most major Sharia advisory boards — Compliant with purification of small interest income ✅
Bottom Line
Onto Innovation (ONTO) is generally halal with purification for Muslim investors, with a clean financial screen thanks to its debt-free balance sheet. The core business — semiconductor metrology, inspection, and process-control — is unambiguously permissible and central to advanced-chip manufacturing.
For Muslim investors seeking semiconductor-equipment exposure, ONTO sits alongside other halal-screened names like Entegris (ENTG) and Advanced Energy (AEIS).
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