aspg-1-4128-1792176648 20261016185048 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group American Journal of Business and Operations Research AJBOR 2770-0216 2692-2967 2025 13 1 Ahmad Hussein Battal Department of Economics, College of Administration and Economics, University of Anbar, Iraq Abdulrazaq Shabeeb Department of Economics, College of Administration and Economics, University of Anbar, Iraq Bha Aldan Abdulsattar Faraj Department of Finance and Banking Sciences, College of Financial and Administrative Sciences, University of Al Maarif, Iraq Wisam Al-Anezi Department of Economics, College of Administration and Economics, University of Anbar, Iraq Faisal Ghazi Faisal Department of Finance and Banking, Al-Idrisi University College, Iraq The research aimed to predict the fluctuations in closing Stock Price of four agricultural companies listed on the Iraq Stock Exchange using daily closing Stock Price data from 11/3/2015 to 15/3/2025. The symmetric and asymmetric ARCH model was applied to the research data. The results of the GARCH models showed that the closing price behavior of the companies (Al-Ahliyah for Agricultural Production, Middle East for Fish, Iraqi for Meat Production and Marketing) achieved a GARCH (1,1) rank, indicating that the effect of past error variance (ARCH) was of rank 1, in addition to the conditional variance element GARCH also being of rank 1. Meanwhile, the results showed that the closing prices for the Iraqi Seed Production Company were of rank GARCH (1,2). The results indicated that the first-order variance parameter was greater than one for all agricultural companies, suggesting that the fluctuations in stock closing prices exhibit a slight upward trend, which aligns with the logic of financial behavior in financial markets. 2025 37 44 4128 https://creativecommons.org/licenses/by/4.0/ 10.54216/AJBOR.130104 https://americaspg.com/journal/1/article/4128 https://americaspg.com/storage/articles/manuscripts/01KZKQEJPQ5HCFQ2BR6H5RJRNN.pdf