The article examines how competitive the Serbian banking sector is from 2010 to 2017 and currently. They looked at different measures of concentration and competition using data from banks in 2016 and 2017. By analyzing factors like total assets, deposits, and loans, they found that there are many banks in Serbia, leading to low concentration and healthy competition. However, the data suggests that the sector is moving towards moderate concentration, which could lead to an oligopoly in the future.