This study investigates the role of hybrid financing instruments in the optimization of capital
structure among corporate entities. Ex-post facto research design was used and secondary data
was obtained from the annual reports and accounts of the publicly listed firms across several
sectors in Nigeria. Using data from 250 publicly listed firms across diverse sectors between 2013
and 2023, the study employs panel regression analysis to assess the impact of hybrid financing on
capital structure indicators such as weighted average cost of capital (WACC), return on assets
(ROA), and firm value (Tobin’s Q). The findings revealed that hybrid financing significantly
enhances capital structure optimization, especially in firms facing high volatility or regulatory
constraints. Thus, by blending tax and leverage benefits of debt with flexibility and less dilutive
nature of equity, hybrid instruments offer a middle ground for firms navigating capital constraints,
macroeconomic volatility, and investor expectations. However, the study highlights several
limitations, including the need for enhanced regulatory frameworks, investor education, and
clearer accounting guidelines to support hybrid financial innovation.