The Short Answer
Sarepta stock (SRPT) is generally considered halal for Muslim investors, subject to the balance-sheet ratios. Sarepta Therapeutics is a commercial-stage biotechnology company developing and marketing RNA-based and gene therapies, with a leading franchise in treatments for Duchenne muscular dystrophy and a broader rare-disease pipeline. Developing and selling medicines is a permissible activity that benefits human health, so the business-activity screen passes.
As with any biotech, the verdict depends on the balance sheet — confirm the debt and receivables ratios against the latest filings, and purify the portion of returns attributable to interest income on cash and investments.
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)
What Sarepta Does
Sarepta Therapeutics, Inc. (headquartered in Cambridge, Massachusetts) is a genetic-medicine company focused on rare diseases:
- RNA therapeutics: Exon-skipping treatments for Duchenne muscular dystrophy.
- Gene therapy: Gene-transfer programs for Duchenne and other rare conditions.
- Pipeline: A broad rare-disease research pipeline across multiple modalities.
Developing and selling medicines that treat serious diseases is a permissible activity, so the business-activity screen passes.
Why It Passes (and What to Check)
1. Permissible Core Business
Sarepta's revenue comes from therapies that treat rare genetic diseases — a clearly permissible activity that benefits human health. There is no haram revenue line.
2. Debt Ratio (Confirm Against Filings)
Biotech companies can carry convertible or other interest-bearing debt, so confirm the total-debt-to-market-cap ratio against the 33% threshold using the latest filings.
3. Interest Income (Purify)
Biotechs earn interest on large cash and investment balances. Check it against the 5% threshold and purify the corresponding portion of returns.
Financial Ratios
Based on Sarepta's most recent financial statements:
- Total Debt / Market Cap: Confirm against filings ⚠️ (threshold: under 33%)
- Interest Income: On cash/investments — check and purify ⚠️ (threshold: under 5%)
- Haram Revenue: None ✅ (threshold: under 5%)
- Receivables Ratio: Confirm against filings ⚠️ (threshold: 49–70%, varies by board)
Assuming the ratios hold, SRPT screens as halal — clinical and regulatory setbacks make the business volatile, so re-screen periodically.
What About Purification?
Purify the portion of returns attributable to interest income earned on Sarepta's cash and investment balances — donating that share of gains to charity.
Verdict from Major Screening Agencies
Sarepta stock is generally screened as halal by:
- Zoya App — Compliant subject to ratios ✅
- MSCI Islamic criteria — Compliant subject to debt ratio ✅
- Most major Sharia advisory boards — Halal with routine purification ✅
Bottom Line
Sarepta (SRPT) is generally halal for Muslim investors, subject to the balance-sheet ratios. The rare-disease medicine business is clearly permissible. Confirm the debt and receivables ratios against the latest filings, purify the interest income, and re-screen periodically given the volatility of clinical-stage biotech.
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