The Short Answer
Armstrong World Industries stock (AWI) has a qualitative business verdict that is HALAL and passes the known filing-based financial ratios, but the overall screen remains incomplete. Armstrong is a manufacturer of ceiling and wall systems.
Building-products manufacturing is generally permissible at the activity level. The March 31, 2026 filing reports debt/assets of 26.00%, below the examined 33% limits; gross interest income and a universal prohibited-revenue numerator are not separately disclosed.
Current quantitative Sharia screen
Based on 10-Q figures for the period ended 2026-03-31; calculated 2026-07-15.
516.3 / 1,985.9
79.8 / 1,985.9
245.4 / 1,985.9
- Financial
- Incomplete
- Overall
- Incomplete
Debt/assets is 26.00%, liquidity/assets is 4.02% and receivables-plus-cash/assets is 12.36%; gross interest income and activity remain unavailable.
- Financial
- Pass
- Overall
- Incomplete
Known debt, liquidity and receivables-plus-cash ratios are below the examined MSCI limits; this is not an index-membership claim and activity remains incomplete.
- Financial
- Pass
- Overall
- Incomplete
Debt/assets and identifiable liquidity/assets are below the examined Malaysia limits; this is a calculation against SAC ratios, not an official classification.
- Financial
- Not calculated
- Overall
- Incomplete
A licensed historical market-cap series is not stored; filing-based asset ratios remain documented.
Business-activity disclosure
Armstrong World Industries manufactures mineral-fiber, architectural-specialty ceiling and wall systems for commercial and residential buildings. The core building-products activity is generally permissible, but the filing does not provide a universal prohibited-revenue numerator for downstream end uses.
Limitation: No universal prohibited-activity revenue numerator or scholar-specific purification percentage is disclosed; end-market allocation remains qualitative.
Purification
The filing does not separately disclose gross interest income; ZakatInvest does not infer a purification amount or prescribe a fixed scholar-approved percentage.
Inputs, assumptions and primary sources
- Amounts are USD millions from Armstrong World Industries' March 31, 2026 Form 10-Q.
- Interest-bearing debt combines $10.3 million of current long-term debt, $469.0 million of long-term debt and $37.0 million of finance-lease liabilities; operating leases are excluded.
- Cash and cash equivalents are $79.8 million; no separate interest-bearing securities balance is identified; net current receivables are $165.6 million.
- First-quarter net sales are $409.9 million. The filing does not provide a separately reproducible gross interest-income numerator.
- Ceiling and wall-system manufacturing is retained as qualitative analysis; no universal prohibited-revenue numerator is disclosed.
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.
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)
Armstrong's Business Activity
Armstrong designs, manufactures, and sells:
- Ceiling systems: Mineral-fiber, fiberglass, and metal ceiling tiles
- Architectural specialties: Custom architectural-specialty ceilings and wall systems
- Suspension systems: Grid-suspension systems for commercial and residential buildings
These are general-purpose building-products businesses — manufacturing ceiling and wall materials. This is permissible at the activity level.
Concerns to Be Aware Of
1. Leverage Profile
Armstrong reports $516.3 million of debt and finance leases against $1,985.9 million of assets. The filing-based debt/assets ratio is 26.00%; a licensed market-cap denominator is not calculated here, so leverage should still be re-verified after material transactions.
2. End-Market Look-Through
Armstrong's systems are sold through distributors and contractors into commercial and residential construction-and-renovation markets. Under standard methodology, the relevant classification is general-purpose building-products manufacturing rather than the look-through end-customer mix.
3. Minor Interest Income
The filing does not separately disclose gross interest income. ZakatInvest does not infer a purification amount or prescribe a fixed scholar-approved percentage.
Filing-Based Ratios (March 31, 2026)
Using Armstrong's latest Form 10-Q (USD millions):
- Debt / total assets: 26.00%
- Cash + securities / total assets: 4.02%
- Receivables + cash / total assets: 12.36%
- Gross interest income: Not separately disclosed
Methodology Interpretation
These are ZakatInvest calculations from the cited filing, not claims of current index membership or an official scholar ruling:
- FTSE-style: Known financial ratios pass; activity and gross interest income remain incomplete.
- MSCI-style: Known financial ratios pass; this is not an index-membership claim.
- Malaysia-style: Known debt and liquidity ratios pass; this is not an official classification.
Bottom Line
Armstrong World Industries (AWI) has a generally permissible ceiling-and-wall-systems business and passes the known filing-based ratios. Because gross interest income and a universal prohibited-revenue numerator are not disclosed, the overall result remains incomplete rather than a universal halal certification; consult the methodology you follow.
For Muslim investors seeking building-products exposure, AWI sits alongside other halal-screened names like Carlisle Companies (CSL) and Trex (TREX).
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