This objective of this study is to forecast the profit of automotive and component sub sector companies using a monte carlo simulation with R Program. The data used are profit per quarter from 2019 to 2021 of five automotive and component sub sector companies listed on IDX. The method use in this study is the monte carlo simulation. This method uses a probabilistic approach so that it is able to consider uncertainty. The result of profit forecasting in 2022 to 2024 for PT Astra Internasional Tbk is IDR 62,275 trillion, PT Garuda Metalindo Tbk is IDR 53,594 billion, PT Gajah Tunggal Tbk is IDR 711,669 billion, PT Indomobil Sukses Internasional Tbk is IDR 826,315 billion, and PT Indospring Tbk is IDR 253,959 billion.

Keywords : Forecasting, Monte Carlo Simulation, R Program.