Is MACOM Stock (MTSI) Halal? A Complete Analysis

The Short Answer

MACOM stock (MTSI) is generally considered halal by most Islamic scholars and Sharia screening criteria, provided the current debt-to-market-cap ratio sits within the 33% threshold and the Sharia advisory board does not apply a strict defense-end-market screen. MTSI is a US designer and manufacturer of analog, RF, microwave, millimeter-wave, photonic, and optoelectronic semiconductor products. End markets span telecom and data-center optical communications, industrial and medical, and aerospace and defense.

Analog and RF semiconductor design and manufacturing are unambiguously permissible at the activity level — the products are general-purpose semiconductor components. The Sharia consideration is the qualitative screen on aerospace-and-defense end-market exposure plus the financial screen on acquisition-financing debt.

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)

MACOM's Business Activity

MACOM's product portfolio includes:

• RF and microwave integrated circuits: Amplifiers, switches, mixers, attenuators for telecom and industrial customers
• Photonics: Lasers, photodetectors, modulator drivers, transimpedance amplifiers, and integrated optical modules for data-center, long-haul, and metro optical communications
• Power amplifiers and switches: Discrete and integrated devices for radar, electronic warfare, satellite communications, and 5G
• Integrated modules: Multi-chip modules for high-performance applications

Analog and RF semiconductor design and manufacturing are permissible at the activity level.

Concerns to Be Aware Of

1. Aerospace-and-Defense End-Market Exposure

A meaningful share of revenue is tied to aerospace and defense end customers (radar, electronic warfare, satellite communications). Some strict Sharia advisory boards apply defense-end-market screens that exclude such names even when the products are general-purpose RF and microwave semiconductors. Most other boards classify MACOM as halal because the products are general-purpose components.

2. Acquisition-Financing Debt

MACOM has been acquiring assets (notably the 2023 Wolfspeed RF business and the 2024 ENGIN-IC acquisition). The debt-to-market-cap ratio has at times sat near the 33% Sharia threshold. Muslim investors should verify the current ratio at their preferred screening platform.

3. Optical-Components Cycle

MACOM is exposed to the optical-components and telecom-and-data-center semiconductor cycle. This is a business-quality consideration rather than a Sharia-screen concern.

4. Customer Concentration

MACOM's customer base is concentrated with a small group of large optical-components, data-center, and defense-prime customers.

Financial Ratios (2025)

Based on MACOM's most recent financial statements:

• Total Debt / Market Cap: Near 33% — verify current ratio ⚠️
• Interest Income / Revenue: Under 5% ✅
• Haram Revenue: Negligible at the activity-level; qualitative-screen view varies on defense end markets ⚠️
• Receivables Ratio: Within limits ✅

Verdict from Major Screening Agencies

MACOM stock screens as compliant or doubtful, depending on Sharia advisory board methodology on defense end markets:

• Zoya App — Often Compliant when ratios pass and defense semiconductors are treated as general-purpose ⚠️
• MSCI Islamic criteria — Methodology view on defense end markets varies ⚠️
• Strict Sharia advisory boards — Some classify as failing the defense-end-market qualitative screen ❌
• Most major Sharia advisory boards — Approved as general-purpose RF and microwave semiconductors ✅

Bottom Line

MACOM (MTSI) is generally halal for Muslim investors who follow Sharia advisory boards that classify defense semiconductors as general-purpose components, subject to verifying the current debt-to-market-cap ratio. The semiconductor business is unambiguously permissible at the activity level, and the qualitative screen passes at most major Sharia advisory boards. Muslim investors who follow stricter defense-end-market screens may prefer alternatives.

For Muslim investors seeking exposure to the analog, RF, and microwave semiconductor category, MTSI sits in a peer group with Analog Devices, ON Semiconductor, Monolithic Power Systems, and Skyworks Solutions — most of which screen halal under standard Sharia methodology when financial ratios pass.