in common vs mutual

in common

• Shared with one or more others. 

• Held in joint possession. 

• Possessing similar or identical qualities. 

mutual

• Owned by the members. 

• Having the same relationship, each to each other. 

• Collective, done or held in common. 

• Reciprocal. 

• Possessed in common. 

• A mutual organization. 

• Either of a pair of people who follow each other's social media accounts. 

• A mutual fund.