A screen you can check, from an investor who had to build one.

Who writes this

Amadou Camara

I spent twenty-five years in corporate finance at a Fortune 500 company. My job was to help it decide where its capital should go, where it should not, and when to change its mind. That work teaches one thing above all: write the rule down before the decision, and grade the decision afterwards.

At home I faced a harder question: how to invest my own money, and my family's, without compromising my faith. The tools I found either told me what was halal and stopped, or told me what to buy and ignored the faith. So I applied the discipline from work to the problem at home. Friends asked for the list. Then strangers did.

Purefolio is that discipline, written down so anyone can check it: rules published in advance, every number dated, every change explained, a record that opens in public at thirty graded names. I am not a scholar and not an adviser; I apply a published standard and tell you the date. I built this for myself first. I am sharing it because the questions I struggled with are the questions every Muslim with a paycheck and a retirement plan is asking. The research is produced by HalalQuant Research.

The yardstick is SPUS, the halal S&P 500, not the S&P 500. Beating the market while trailing the halal index would mean the screen did the work, not the selection.

What we will not do

• • Give personalised investment advice or tell you what to buy.
• • Publish a performance claim we cannot show you the data for.
• • Issue rulings. We apply a published standard, date every status, and tell you when another screen could reasonably differ.
• • Quietly change the rules. Changes are dated and explained in the paper.
• • Publish positions, sizes or anyone's personal holdings.

The halal question

Checked every month, and then by you.

Every name is checked against the AAOIFI standard, the most widely used in Islamic finance: what the company sells, what it owes, and how much it keeps in accounts that pay interest. The full screen runs every month and every answer shows the date of its last check. A name that reaches the weekly list is also compared with what the certified halal funds hold. Other screens can disagree, because they use different limits, denominators or filing dates. If an answer looks wrong to you, tell us, and ask a scholar you trust. The last word is yours.