Is it against Jewish or Muslim law to invest in pork belly futures?

According to the Jewish religion, if it was possible for you to walk into the factories and take some food, you would not be able to invest in them. Since it is not possible to do that, You are allowed to invest in them financially. Jewish religion also only prohibits not owning something with Meat and Milk together.

You are allowed to own non kosher meats. You just cannot eat them.

No. Kosher and Halal provide prohibitions on eating, preparing, slaughtering, cooking, etc. They do not address financial investment.

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