Permissible in principle — with screening required for each specific company.
Confidence level: Strong on the framework. Individual stock decisions require company-level screening.
THE CORE RULING
Owning shares in a company is, in Islamic law, equivalent to owning a proportional share of that company's business and assets. This is a form of partnership (musharakah), which Islam not only permits but actively endorses as the foundation of legitimate commerce. The stock market itself is not haram — it is a mechanism for facilitating equity ownership in businesses.
The permissibility of a specific stock depends on what that business does and how it is financed. A stock in a company that produces, sells, or primarily services something prohibited — alcohol, conventional interest-based banking, pork products, weapons, gambling, or adult entertainment — inherits the prohibition of that underlying activity. A stock in a company with otherwise permissible operations but with excessive debt on interest-bearing terms carries a separate concern.
SHARIAH SCREENING: TWO FILTERS
Contemporary Islamic finance bodies apply a two-part screen
1. Business activity screen (qualitative): The company's primary revenue must not come from prohibited sectors. There is a tolerance threshold for incidental haram income — AAOIFI and MSCI Islamic standards generally set this at 5% of total revenue for highly prohibited activities (alcohol, pork, weapons, adult content) and up to 33% for more borderline sectors. A company that earns 2% of revenue from a hotel's alcohol bar is treated differently from a brewery.
2. Financial ratio screen (quantitative): Three ratios are typically applied: — Total interest-bearing debt / total assets: generally must be below 30-33% — Interest income / total revenue: generally must be below 5% — Accounts receivable / total assets: generally must be below 49-67% (depending on the standard)
These ratio screens exist because a company that is primarily permissible but heavily financed through interest-bearing debt means your shareholding is partly funding that interest-based capital structure.
WHAT ABOUT SHORT-TERM TRADING?
Long-term investment based on company fundamentals is the generally accepted form. Short-term speculation — buying and selling purely on price momentum with no consideration of underlying business value — approaches the maysir (gambling) concern that scholars flag. Day trading, leveraged margin trading, and equity derivatives are treated far more strictly than buy-and-hold investment.
INCOME PURIFICATION
Even Shariah-screened stocks may produce a small amount of impermissible income — a company that passes all screens may earn marginal interest on its cash holdings. The standard practice is income purification: calculate the impermissible income as a percentage of total revenue, apply that percentage to your dividend income, and donate that portion without counting it as charity from yourself.
WHAT YOU SHOULD DO
Before investing: Use an established Shariah screening tool (Zoya, IslamicFinanceGuru's screener, MSCI Islamic Index methodology, or your local Islamic bank's screener) to check specific stocks. Do not rely on the sector category alone — screening requires revenue and financial ratio data.
If already invested: Run your current holdings through a screener. Stocks that pass — hold and purify. Stocks that fail the business activity screen — a plan for exiting is appropriate, but you do not need to sell at a loss immediately. Consult a scholar on the timeline. Stocks with borderline financial ratios should be monitored on a quarterly or annual basis.
This is an educational overview. For large portfolios, Shariah-managed funds with independent oversight may be more practical than individual screening.
