This article examines the importance of good corporate governance in increasing the capital value of Uzbek joint-stock companies. The article examines approaches to developing an effective management methodology in joint-stock companies based on agency theory, stakeholder theory, and resource dependency theories. The study analyzes the increase in capital value through modern financial indicators, including ROI (return on investment), EVA (economic value added), and ROE (return on equity). The theoretical and practical approaches presented in the article conclude with recommendations aimed at improving the management systems of joint-stock companies in the conditions of Uzbekistan and increasing their market value.

This article proposes the strategic openness index (SOI) as a new metric aimed at evaluating and improving the quality of strategic decision-making in joint-stock companies. The index is built on three fundamental pillars – transparency, accountability, and stakeholder participation. Based on international experience and empirical research in the context of Uzbekistan, it is shown that companies with higher SOI scores demonstrate improved capital valuation (Tobin’s Q), reduced strategic risks, and increased investor confidence. This approach advances the governance and performance paradigm by shifting focus from formal outcomes to the openness and inclusivity of decision-making processes.