Investigation of the financial impact of the COVID-19 process on the businesses traded in the BIST banking sector

For this purpose, it is aimed to determine the orientation on the financial performance of the COVID-19 pandemic in the banking sector. In the research, the origin of the institutions consists of two groups as the pre-COVID-19 period and the COVID-19 period. The 9th quarter financial ratios of banks were compared in terms of the pre-COVID-19 period and the COVID-19 period in children. The data of 8 deposit banks in BIST Banking institution were used in the research. It consists of 5 different groups, including the capital test, asset quality, income-expenditure structure, market performance, profitability ratio, including 11 built-in variables that are the subject of the study. A comparison of groups was made before and after the COVID-19 epidemic between 2019-2020 and 2021. As a result of the analyzes made, it has been determined that the capital adequacy, asset quality, income-expenditure structure ratios of the banks were affected during the COVID 19 period. It is intended as an explanation for overcoming limitations in market performance, despite a large change in banks' profitability during COVID 19 compared to pre-COVID-19.