This research worked on identifying the effect of increasing the volume of indebtedness by companies listed on the Iraq Stock Exchange on the trading volume of those companies, and this research included some theoretical concepts related to both debt financing and trading volume, and it represents the research community of the joint-stock companies listed in The Iraq Stock Exchange (the banking sector). As for the research sample, it was deliberately chosen represented by companies with continuous trading without stopping, which reached 10 joint-stock companies, and the period of research was extended during the period 2011-2015, and a set of indicators and financial methods were used In measuring research variables.

 The research showed several results through which several conclusions were reached, including: (1) The existence of a strong correlation with significant moral significance between the increase in the proportion of debt size and the trading volume in the Iraqi Stock Exchange, which gives importance to controlling the size of the debt in increasing circulation of companies' shares in the market The Iraqi financial system At the end of the research, a number of recommendations were reached, including Proper planning for the borrowing process must be developed through a study and evaluation of the financial structure in order to determine the optimal ratios of debt that can be used to achieve a positive impact on the volume of trading. Paper type/case study