HalalGauge
The HalalGauge letter

Essays on halal investing.

The kind of thoughtful, current, plain-language analysis halal-investing decisions deserve. Written for Muslim investors and the people who serve them.

2026-08-01

AAOIFI vs Mufti Taqi vs DJIM vs Ja'fari: a side-by-side comparison

Most Muslim investors have heard of at least one Shariah screening standard. Few have a clear picture of how the major standards differ from each other.

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2026-07-15

Is my 401(k) halal? A practical guide for US Muslim employees

If you're a Muslim employee in the US, you've probably wrestled with one of these:

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2026-07-01

The 5 financial ratios every Muslim investor should understand

If you've ever looked at a Shariah-screening methodology page and felt like you needed a finance degree to follow it: I have good news. The whole game comes down to five ratios.

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2026-06-15

Mufti Taqi Usmani's illiquid-asset rule: the most overlooked rule in halal investing

If you follow Mufti Taqi Usmani — and millions of Muslim investors do — there's a screening rule in his published work that almost no halal-investing app implements.

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2026-06-13

Are halal ETFs actually halal? SPUS, HLAL, and why SPY isn't

Halal ETFs like SPUS and HLAL screen and purify their holdings — but SPY and QQQ don't. Here's how to tell a Shariah-compliant fund from a conventional one, and why mega-cap holdings with 'billions in debt' can still pass.

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2026-06-01

Is Amazon (AMZN) halal? It depends which scholar you ask.

Ask Wahed: Amazon is halal. Ask Zoya: Amazon is halal. Ask Musaffa: Amazon is halal. Ask the AAOIFI screening standard that every major halal-investing app implements: Amazon is halal.

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