What is Shariah screening?

A rules-based review

Shariah screening is a structured process for deciding whether an investment meets a particular set of Islamic investment criteria.

For listed companies, the process usually has two main stages.

1. Business activity screening

The first stage looks at the company's products, services and sources of revenue. Businesses centred on prohibited activities are removed from the eligible universe.

2. Financial screening

Companies that pass the business screen are then tested against financial measures. Depending on the methodology, these may look at interest-bearing debt, cash, receivables or non-compliant income.

The ratios and thresholds are not identical across all Shariah standards and index providers.

Review and governance

Screening is repeated periodically because company finances and activities change. Shariah index providers and fund managers may also use a Shariah board or external adviser to oversee the methodology.

A company can therefore move into or out of a Shariah-compliant universe over time.

Why two screens can disagree

Two reputable methodologies can reach different conclusions because they may use different financial ratios, different denominators, different treatment of particular activities or different review dates.

For investors, the useful question is not only 'Is this Shariah-compliant?' but also 'Which methodology is being used?'

This guide is general education, not personal financial advice.