Analysis of MNC36 Index Movements Using the Autoregressive Integrated Moving Average (ARIMA) Method During and After the COVID-19 Pandemic
This study analyzes the movement of the MNC36 index during the COVID-19 pandemic (2020–2022) and after the pandemic (2023–2025) using the Autoregressive Integrated Moving Average (ARIMA) method. Daily closing-price observations were obtained from Investing.com for the period 2 January 2020 to 30 December 2025, comprisi...