
Is Mueller Industries (MLI) stock Halal?
Under AAOIFI Shariah Standard No. 21, a Halal stock keeps non-permissible income below 5% of revenue and interest-bearing debt and investments each below 30% of market capitalisation. Mueller Industries, Inc. (MLI) passes all four screens as of September 2026, with a dividend purification factor of 98.76%.
Mueller Industries is a prominent manufacturing company, specializing in producing a wide array of products made from copper, brass, aluminum, and plastic. The company's primary function is to supply pipes, fittings, valves, and related products that serve a broad spectrum of industries, including plumbing, HVAC, refrigeration, and industrial manufacturing. With its product range, Mueller Industries plays a crucial role in supporting infrastructure development and maintenance projects worldwide. For Muslim investors, though, the most pressing question is simpler: is Mueller Industries a Halal investment?
Is Mueller Industries Shariah compliant?
Extracting and selling oil, gas or materials is a permissible business, so companies like Mueller Industries rarely stumble on the activity screen. The pressure point is capital structure: energy is a capital hungry industry that borrows heavily, and AAOIFI Shariah Standard No. 21 caps interest bearing debt at 30% of market capitalisation, a line that moves as commodity cycles move the share price.
Does Mueller Industries pass the business activity test?
Yes. In the September 2026 screening Mueller Industries holds an overall PASS, which a stock only earns when its core business clears the activity screen. The activity itself, extracting and selling resources, raises no Shariah objection; the scrutiny belongs to the financing.
Is Mueller Industries' income Halal?
Yes, within AAOIFI's tolerance. Mueller Industries' income from non-permissible sources stays below 5% of revenue in the September 2026 screening, and the small impure portion is handled through purification: the factor of 98.76% tells holders of MLI what share of each dividend to keep and what remainder to donate to charity.
Does Mueller Industries meet AAOIFI's debt and investment ratio requirements?
Yes. Both caps hold this month: interest bearing investments and interest bearing debt each stay below 30% of market capitalisation. Because the caps move with the share price, our Shariah Supervisory Board has MLI re-screened every month, and the result above always shows the latest verdict.
Tabadulat is an ADGM regulated brokerage whose license covers Shari'a Compliant Regulated Activities, as the FSRA permission names them. New to the terminology? Gharar and Maysir, Sukuk, Zakat and purification are all explained in plain English.
New to the four screens? Read AAOIFI Standards Explained: What Makes a Stock Halal?



