Why Multiple Standards Exist

There is no single, universal Shariah screening standard. Just as Islamic jurisprudence (fiqh) has multiple schools of thought that agree on fundamentals but differ on details, Shariah screening has evolved into several distinct methodologies — each developed by different institutions, for different markets, with slightly different thresholds.

This isn't a flaw; it reflects the healthy diversity of Islamic scholarly opinion. What it means in practice is that the same stock can be compliant under one methodology and non-compliant under another. Understanding the differences is essential for any serious halal investor or Islamic fintech developer.

Five major methodologies dominate the global Islamic finance industry. Let's examine each one.

AAOIFI (Accounting and Auditing Organization for Islamic Financial Institutions)

AAOIFI is the closest thing to a global standard-setter for Islamic finance. Based in Bahrain, it develops accounting, auditing, governance, and Shariah standards adopted by institutions across the Gulf Cooperation Council (GCC) and beyond.

AAOIFI's screening criteria are considered among the most stringent:

Denominator: Market capitalization (which makes ratios volatile with stock price fluctuations).

DJIM (Dow Jones Islamic Market)

The Dow Jones Islamic Market Index was launched in 1999 — making it one of the earliest Islamic equity benchmarks. It's maintained by S&P Dow Jones Indices in consultation with an independent Shariah supervisory board.

Denominator: 24-month trailing average market capitalization. This smoothing effect reduces the volatility problem of using spot market cap, making results more stable quarter-over-quarter.

FTSE Shariah

FTSE Russell (part of the London Stock Exchange Group) developed its Shariah screening methodology in partnership with Yasaar Ltd, a Shariah advisory firm. It's widely used in the UK, Europe, and Southeast Asia, particularly Malaysia.

Denominator: Total assets. This is a critical difference — using total assets instead of market cap produces more stable, predictable ratios that don't swing with stock price movements.

MSCI Islamic Index

MSCI's Islamic Index Series is used by institutional investors globally, particularly sovereign wealth funds and Islamic asset managers. The methodology is overseen by an independent Shariah committee.

Denominator: Total assets. Similar to FTSE in its use of balance sheet values, producing stable results.

S&P Shariah Indices

S&P's Shariah indices apply their own screening criteria, distinct from the DJIM methodology despite both being managed under the S&P umbrella.

Denominator: 36-month trailing average market capitalization. S&P is notably more lenient on cash and receivables thresholds (49% vs. 33%), which means fewer companies fail on these criteria.

The Complete Comparison Table

Criteria AAOIFI DJIM FTSE MSCI S&P
Impure Revenue < 5% < 5% < 5% < 5% < 5%
Debt Ratio < 30% < 33% < 33% < 33.33% < 33%
Cash & Interest < 30% < 33% < 33% < 33.33% < 49%
Receivables < 30% < 33% < 50% < 33.33% < 49%
Denominator Market Cap 24-mo Avg MCap Total Assets Total Assets 36-mo Avg MCap
Established 1991 1999 2006 2007 2006
Primary Region Gulf / MENA Global UK / Asia Global Global
Why Stocks Change Compliance Status

Methodologies using market capitalization as the denominator (AAOIFI, DJIM, S&P) produce ratios that fluctuate with stock price. When a stock price drops sharply, the debt-to-market-cap ratio increases — potentially pushing a previously compliant company over the threshold. Conversely, a rising stock price can bring a non-compliant company back into compliance. Total-assets-based methods (FTSE, MSCI) are immune to this effect.

Real Example: Screening Apple (AAPL) Across All 5

Let's see what happens when we screen Apple across all five methodologies simultaneously. Using the Halal Terminal API:

curl https://api.halalterminal.com/api/screen?symbol=AAPL \
  -H "X-API-Key: YOUR_KEY"

As of early 2026, Apple is COMPLIANT across all five methodologies. Its debt-to-market-cap ratio is approximately 14.8% (well under even AAOIFI's strict 30% threshold), its cash ratio is around 2.1%, and its impure revenue ratio is 0.42%. Apple's massive market capitalization keeps its ratios low when using market-cap-based denominators.

But not every company has Apple's profile. Consider a company with moderate debt (~$20B) and a market cap of $60B. Its debt ratio would be 33.3% — non-compliant under AAOIFI (30%), borderline under DJIM/FTSE/S&P (33%), and compliant under MSCI (33.33%). A single percentage point difference in the threshold can change the verdict.

Screen any stock or ETF

Choose Your Tool

Use the interactive terminal to screen visually, or integrate the API into your own applications and workflows.

Open Terminal → Use the API →

Which Methodology Should You Use?

The choice depends on your context:

Building for Multiple Standards

If you're developing an Islamic fintech product, supporting multiple methodologies isn't a nice-to-have — it's essential for serving a global user base. A user in Saudi Arabia may require AAOIFI compliance, while a user in Malaysia expects FTSE screening.

The Halal Terminal API returns results for all five methodologies in a single response, so you can build once and let users choose. This approach also helps with transparency: showing users that a stock passes 5/5 or 3/5 methodologies gives them a nuanced picture rather than a binary yes/no.

Key Takeaways