Corporate governance is a strategic approach to the governance of companies, which is necessary due to strong and frequent changes both in the market and within company. The management of the company needs to worry about changes in the legal framework that can significantly affect the business as well as completely block it, and therefore it is very important that the management of the company adapts to the current legal changes. Also, management must by no means ignore the importance of human capital for successful corporate management, because human capital is the only capital that is not owned by the company and is unique in itself and impossible to replicate. It is necessary to have a healthy financial situation in the company so that investors can see that the company is stable and has the possibility of development. The best way of presentation to investors is through financial reports, where all companies submit standardized reports that are comparable to each other, and in this way investors can analyze where it is most worthwhile to invest their money. Helping financial reports is the Code of Corporate Governance, which with its 10 chapters and questionnaire of 142 questions covers all segments of corporate governance. In this paper, research was done on the difference in share prices before and after the introduction of the new Code of Corporate Governance, and the existence of a connection between the level of corporate governance culture and company characteristics (company size, level of income, level of indebtedness and level of liquidity). During the research, it was determined that there is no significant difference in the price of shares before and after the introduction of the new CCG and that there is a connection between the level of CCG and the company size, while there is no connection between the level of CCG and the level of liquidity, the level of indebtedness and the amount of income. It should be taken into account that the research was done in a period when the economy received a strong blow caused by the corona virus crisis.