Two investors can run the identical stock through a Sharia screen and get opposite answers — one halal, one not. This guide breaks down the three dominant standards (AAOIFI, Dow Jones Islamic Market, and MSCI Islamic), the two-layer screen they share, and the single arithmetic difference that decides who passes.
Sharia-compliant equity screening is a two-stage filter, and a stock has to clear both stages to be considered permissible (halal) — failing either one is disqualifying. The first stage looks at what the company does; the second looks at how its balance sheet is financed. Understanding both explains a fact that surprises many investors: the same stock can be labelled compliant by one standard and non-compliant by another, purely because of a difference in arithmetic.
Three methodologies dominate the field: the standard published by AAOIFI (the Accounting and Auditing Organization for Islamic Financial Institutions), the Dow Jones Islamic Market (DJIM) methodology now maintained alongside the S&P Shariah indices, and the MSCI Islamic index methodology. They agree on the concept and disagree on the details.
The activity screen excludes companies whose core revenue comes from lines of business considered impermissible. Across all three standards the exclusion list is broadly similar:
Most standards also apply a de minimis tolerance: if a small share of revenue — commonly cited around 5% — comes from an impure activity, the company is not automatically excluded, but that fraction feeds into purification (discussed below). A company that fails the activity screen is out regardless of how clean its balance sheet looks.
A permissible business can still fail on financing. The reasoning is that a company carrying heavy interest-bearing debt, or one that is effectively a pile of cash and monetary claims rather than real operating assets, sits too close to riba to be treated as a halal equity. Three ratios do most of the work:
Each ratio has a ceiling, usually cited near 30% or 33%. On the surface those numbers look almost identical. The disagreement that actually changes verdicts is hidden in the words "divided by."
The three standards use different denominators, and that single choice is why the same company can pass and fail at once. The thresholds below are the figures commonly cited in each methodology; treat them as directional and verify against each provider's current rulebook, since providers periodically revise them.
| Standard | Denominator | Debt ceiling | Cash + interest-bearing securities | Receivables / liquidity test | Impure income |
|---|---|---|---|---|---|
| AAOIFI | Market capitalisation (historically; some apply total assets) | ~30% | ~30% | Tangibility / tradability test on cash + receivables | ~5% of revenue |
| Dow Jones Islamic / S&P Shariah | Trailing 24-month average market cap | ~33% | ~33% | Accounts receivable ~33% | ~5% of revenue |
| MSCI Islamic | Total assets | ~33.33% | ~33.33% | (Receivables + cash) ~33.33% | ~5% of revenue |
Notice the pattern: AAOIFI anchors to market capitalisation with a slightly tighter ~30% line, DJIM smooths out day-to-day price noise with a trailing 24-month average market cap, and MSCI throws out market price entirely and divides by total assets from the balance sheet. AAOIFI also layers on a tangibility rule — the shares should represent real assets, not a bundle of cash and monetary claims — rather than a single receivables percentage.
Consider a profitable company with a fixed amount of interest-bearing debt. In a hypothetical market rally, its share price — and therefore its market capitalisation — climbs sharply, while its total assets on the balance sheet barely move. A standard that divides debt by market cap shows a falling debt ratio, because the denominator ballooned, nudging the stock toward compliance. A standard that divides the same debt by total assets sees almost no change. Reverse the scenario — a sharp price decline — and the market-cap-based ratio spikes, potentially tipping a previously compliant stock into non-compliance even though nothing about the underlying business changed.
This is also why market-cap-based standards can produce different answers on different days, while total-asset-based standards move only when financial statements are updated. Neither approach is "wrong" — they encode different views of what a shareholder actually owns. It does mean that "is this stock halal?" has no single universal answer; it always carries an implied "...under which standard, and as of when?" This is one input among several a values-driven investor weighs, not a verdict on the company itself.
Passing both screens does not always mean 100% of a company's income is pure. A compliant operating business may still earn a little interest on its cash balances, or a sliver of revenue from an incidental impure activity. Purification (dividend cleansing) is the practice of estimating that non-permissible fraction and giving it away to charity, with no expectation of reward or tax benefit, so the investor keeps only the pure portion. The mechanics are straightforward in principle:
Standards and scholars differ at the edges — whether capital gains need purifying, and exactly which income lines count — but income and dividend purification is the widely accepted baseline. This is a religious-observance calculation, not tax advice; the charitable gift is not made in order to claim a deduction.
Quintarthai's Sharia screen evaluates a stock against multiple compliance standards at the same time and shows the underlying ratios — interest-bearing debt, cash plus interest-bearing securities, and receivables — alongside the denominator each standard uses, so you can see exactly why a name passes under one methodology and not another. The figures are computed from public filings (SEDAR+ / EDGAR / SEDI) and licensed market data, presented for your own research rather than as a compliance ruling.
AAPL screens against AAOIFI, Dow Jones, and MSCI rules at once — with the underlying ratios shown — on the free Core dashboard at quintarthai.com/app.