Is TDY halal?
Teledyne Technologies Incorpora
Halal
Teledyne Technologies Incorpora passed every check under AAOIFI Shariah standard No. 21: no prohibited business activity, and all three financial ratios are within limits.
Checked: 14 October 2026
Exchange
NYSE
Price
618.6
Day
-0.21%
Market cap
$28.23B
Industry
Scientific & Technical Instruments
Sector
Technology
What the company does
Teledyne makes sensors and instruments: FLIR thermal cameras, digital imaging, marine and aerospace instruments, and test equipment. Customers are industrial, government and defense; its money comes from instrument 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 $2.03B ÷ 36-month average market cap $23.57B = 8.6%
8.6%
Pass
Cash & investments / market cap
limit 30%
Cash + interest-bearing securities $340.10M ÷ 36-month average market cap $23.57B = 1.4%
1.4%
Pass
Non-compliant income / total revenue
limit 5%
—
No data
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: $28.23B.
For information (AAOIFI 3/1 note): cash + receivables are 11.2% 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
- 0.04% weight · #316 of 503
- Among halal stocks
- 0.04% · #233 of 1454
- Held by funds
- Not held by any tracked fund
Superinvestors
SEC 13F, 2026 Q3. Up to 45 days delayed.Held by 3 superinvestors · Average reported price: $666.90
- Dodge & Cox Funds$1.1B0.6%
- Yacktman Asset Management$1.8M0.0%
- First Eagle Investment Management$44K0.0%
Halal stocks in the same industry
The largest halal stocks in Scientific & Technical Instruments — for comparison.
Related articles
- Halal investingBlogHow to calculate purification for a halal stockEven a halal company earns a little interest. A simple formula and worked example for how much of your dividend to give to charity.
- GuideBlogDividends, zakat and tax: a practical guide for US stock holdersHow much US tax is withheld from dividends, what to declare in Uzbekistan, and how zakat on shares is calculated — with one worked example.
- Halal investingBlogWhy does a stock's halal status change?A stock that was halal yesterday can leave the list today. The four main reasons — and why none of them is a bug.
Halal is the first question. The second: when to enter?
Our scanner watches 1454 halal stocks around the clock and fires a signal with entry, TP and SL when a technical setup completes. The full signal history — with outcomes — is public.
This is neither investment advice nor a fatwa. Screening is based on public financial statements and AAOIFI standard No. 21; data may lag. For a personal decision consult your own scholar.