How to Cite Fahmi, M. A. H., Adam, M., Widiyanti, M., & Isnurhadi, I. (2021). The influence of capital structure, its size, growth of the value of the company with its profitability as variable intervening the company LQ45 are listed in Indonesia stock exchange. International Journal of Business, Economics & Management, 4(4), 487-493. https://doi.org/10.21744/ijbem.v5n1.1805 ISSN 2632-9476 Submitted: 09 October 2021|Revised: 27 November 2021| Accepted: 18 December 2021 471 The Influence of Capital Structure, its Size, Growth of the Value of the Company With its Profitability as Variable Intervening the Company LQ45 Are Listed In Indonesia Stock Exchange Mgs. Abdul Hakim Fahmi Master of Management, Sriwijaya University, Palembang, Indonesia Corresponding author email: abdulhakimfahmi@gmail.com Mohamad Adam Lecturer of Magister Management, Economic Faculty, Sriwijaya University, Palembang, Indonesia Email: mr_adam2406@yahoo.com Marlina Widiyanti Lecturer of Magister Management, Economic Faculty, Sriwijaya University, Palembang, Indonesia Email: marlinawidiyanti68@yahoo.co.id Isnurhadi Lecturer of Magister Management, Economic Faculty, Sriwijaya University, Palembang, Indonesia Email: isnurhadi2020@gmail.com Abstract---This study aimed to determine the effect of capital structure, firm size, firm growth on firm value with profitability as an intervening variable in LQ45 companies listed on the Indonesia Stock Exchange in 2018-2020. The sample used is 33 LQ45 companies during the period 2018-2020. This research uses multiple linear regression and path analysis. The results showed that the capital structure had a significant adverse effect on profitability and firm value. Meanwhile, firm size and growth do not significantly affect profitability and firm value. Profitability has a significant positive effect on firm value. Indirectly, capital structure affects firm value through profitability, while firm size and growth do not indirectly affect firm value. Keywords---capital structure, company growth, company size, company's value, profitability. Introduction Good management of company resources is needed so that the company can achieve its goals. The purpose of a go public company is to prosper the shareholders or owners of the company by increasing the value (Salvatore, 2005). The company's value is an important thing to increase because it is related to the welfare of the owner of the company (Dagilienė, 2013). The company's value will be a positive signal for investors who want to invest in the company, while for creditors, the company's value will be one of the added value considerations in providing loans (De Almeida & Eid Jr, 2014). A stock index is a statistical measure that reflects the overall price movement of a group of stocks selected based on specific criteria and methodologies and evaluated regularly (www.IDX.co.id). The LQ45 stock index is often used in research because it measures the stock price movements of 45 companies with high liquidity and good fundamentals to be suitable as samples in this study. The rise and fall of stock prices reflect the value of the company. A low stock price indicates a low company value, which means low investor interest in investing in the company. On the other hand, it reflects the high stock price of investors' confidence in the company because it is considered to have a high value (Natsir & Yusbardini,