@Der_Dividenden_Monteur Among other things, yes :) In general, all sales that are not Islamically vertrebtar - interest, sales from distribution and production of: Alcohol, weapons, armaments, pornography, etc. Of course, these must not be the main business model of the Unternhemnes. Incidental income (<5%) is tolerated on the condition that it is "cleaned up". Otherwise, trading in shares would not be possible, since virtually every company somehow receives or pays interest, even if minimal.