In this study, we investigate the speed of adjustment for leverage ratios of firms listed on Borsa Istanbul, in order to investigate the prediction
of the trade-off theory, regarding capital structure rebalancing. For this purpose, we estimate the speed of adjustment by using Generalized
Method of Moments system estimation technique. The results of this estimation suggest the speed of adjustment as approximately 29%. This
significant speed of adjustment is consistent with the prediction of trade-off theory, which suggests that firms follow target capital structures and
when the firms’ leverage ratios deviate from these targets; they make financial decisions with the goal of closing the gap between the previous
year’s leverage and target leverage of the current period.