Jun 9, 2026 · 24 min · 10 segments
In this episode of the Ghost Stories podcast, we welcome Old Mutual Investment Group to the platform for the first time. The Finance Ghost sits down with Maahir Jakoet, lead manager of the Old Mutual…
Maahir JakoetGuest
The Finance GhostHostI think we must absolutely just cover off the basics here, because there are specific rules that you have to follow, right? So what does that practically mean, and what are you not allowed to own in the fund?

Sharia really is rules-based instead of being scored based, where there are some inconsistencies.

There are two vital steps that investors need to understand, and the one is the core business activity screen.

So we cannot own companies where the bulk of the revenue comes from alcohol, tobacco, gambling, conventional financial services such as banks and insurers, weapons manufacturing, adult entertainment, et cetera.

Just to note, banks are a big one, because if you look at the MSCI World Index and you look at financials, whether it's in that index or a different index, it's roughly between 18 to 22%.

So at a starting point, when you're removing financials, it up weights something else.

And there are four, but the important one is the debt ratio, and that is 33% debt to asset value or market capitalization.

Now, if you think about that again, besides the conventional banks, when you take that out, you de-lever your universe by that rule, and that's really the big one.
And you've talked there about core business, so I just wanna maybe confirm something there, and bulk of revenue.
So for example, if a company's making, I don't know, 5% of its money from something that is impermissible, that would technically be okay from a screening perspective, provided it also meets the quantitative debt screen, right? So just to be clear, it's quite a practical test.

That's what we call non-permissible income, and that essentially would have to be removed, and that's a ratio perhaps that I didn't mention in the quantitative screen as well.
I think we must absolutely just cover off the basics here, because there are specific rules that you have to follow, right? So what does that practically mean, and what are you not allowed to own in the fund?

Sharia really is rules-based instead of being scored based, where there are some inconsistencies.

There are two vital steps that investors need to understand, and the one is the core business activity screen.

So we cannot own companies where the bulk of the revenue comes from alcohol, tobacco, gambling, conventional financial services such as banks and insurers, weapons manufacturing, adult entertainment, et cetera.

Just to note, banks are a big one, because if you look at the MSCI World Index and you look at financials, whether it's in that index or a different index, it's roughly between 18 to 22%.

So at a starting point, when you're removing financials, it up weights something else.

And there are four, but the important one is the debt ratio, and that is 33% debt to asset value or market capitalization.

Now, if you think about that again, besides the conventional banks, when you take that out, you de-lever your universe by that rule, and that's really the big one.
And you've talked there about core business, so I just wanna maybe confirm something there, and bulk of revenue.
So for example, if a company's making, I don't know, 5% of its money from something that is impermissible, that would technically be okay from a screening perspective, provided it also meets the quantitative debt screen, right? So just to be clear, it's quite a practical test.

That's what we call non-permissible income, and that essentially would have to be removed, and that's a ratio perhaps that I didn't mention in the quantitative screen as well.
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