Is GLW halal?

What the company does

Corning makes specialty glass and optics: Gorilla Glass (phone screens), optical fiber and cables (data centers, telecom — now the fastest growing), display glass, car emission filters and lab ware. Its money comes from product sales.

What was checked

The AAOIFI standard has four steps: business activity first, then three financial ratios. Fail one and the stock is not halal.

• Business activity

  No prohibited activity

• Interest-bearing debt / market cap

  limit 30%

  Interest-bearing debt $8.42B ÷ 36-month average market cap $66.60B = 12.7%

  12.7%

  Pass

• Cash & investments / market cap

  limit 30%

  Cash + interest-bearing securities $2.50B ÷ 36-month average market cap $66.60B = 3.8%

  3.8%

  Pass

• Non-compliant income / total revenue

  limit 5%

  Interest income $38.00M ÷ annual revenue $15.63B (2025) = 0.2%

  0.2%

  Pass

Figures from the company's filings (2026-06-30), USD. Market cap is a 36-month average (the S&P Shariah index approach), so a one-day price move does not flip the verdict. Today's market cap: $125.29B.

For information (AAOIFI 3/1 note): cash + receivables are 16.5% of total assets (2026-06-30). AAOIFI recommends tangible assets of at least one third — this figure does not affect the verdict, and other major screeners do not apply it either.

In the lists

In the S&P 500

0.17% weight · #105 of 503

Among halal stocks

0.18% · #75 of 1455

Held by funds

SPUS 0.28% · HLAL 0.28% · SPTE 0.27%

Dividend

0.75% · purify 0.2% · net 0.75%