Are mutual funds halal?

Part of my companies 401k plan are mutual funds. Out of all the companies in the fund’s portfolio theirs a couple haram companies (ex: weapons/defense, banks, entertainment), but theirs a lot of halal companies as well according to Zoya. Because of these couple haram companies does it make it completely impermecable to invest in the fund?

Assalaamu alaykum,

Such funds need to be screened. Without the Shariah screening at fund level, shariah compliance can never be ascertained.

How do I go about getting these funds screened then? Is their a tool or sharia screening service online that screens such funds?