In this article, the influence of the managers level of optimism on the capital structure, i.e., the probable mathematical expectations of the amount of the companys main operating profit expected in the future, on the capital structure in the optimization of capital of enterprises is studied using the matrix of game theory. As a result, 19 forecast results were developed for several enterprises under 5 different scenarios, and the lowest and highest values of the ratio of debt capital to private capital were determined. This situation ensures the smooth operation of enterprises and helps to increase its fundamental value.