Assalamu alaykom. I personally thought Pfizer isn’t compliant due to what they “sell”… there could be some of their drugs being unislamic… I am personally against certain vaccines which contain either unethical elements or are made in a doubtful way, so I wouldn’t buy such shares…
Allahu A3lam… Apologies, I’m not helping just suggesting there could be reasons other than interest and debt?
Edit:
I just checked my Zoya and it says the interest bearing debt is 31.52%
there are generally two widely accepted methods for screening i.e. calculating the debt ratio VS 1. total assets OR 2) average market capitalisation.
That could be the difference you are seeing. Reading responses from muftis on different posts, both are acceptable method. If a shariah board has screened it then its probably would be ok.