aspg-3-3166-1791417427 20261007235707 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group Fusion: Practice and Applications FPA 2770-0070 2692-4048 2025 17 1 Zinah Kareem Mansoor Department of Computer, College of Science for Women, University of Babylon, Babylon, Iraq Ali Yakoob Al-Sultan Department of Computer, College of Science for Women, University of Babylon, Babylon, Iraq The stock price exhibits quick and extremely nonlinear fluctuations in the financial market. A prominent worry among scholars and investors is the correct prediction of short-term stock prices and the corresponding upward and downward trends. Financial organizations have successfully incorporated machine learning and deep learning techniques to anticipate time series data accurately. Nevertheless, the precision of these models' predictions still needs improvement. Most current studies employ single prediction algorithms that cannot overcome intrinsic limitations. This paper proposes a methodology that utilizes the MUTUAL, principal component analysis (PCA), and Long Short-Term Memory (LSTM) model to accurately simulate and predict the variations in stock prices. The technology is utilized for the three global stock market datasets: TSLA, S&P500, and NASDAQ. The highest level of improvement achieved is a correlation of 99%. Furthermore, there is a reduction in error for the metrics MSE, MAPE, and RMSE, with improvements of 0.0001, 0.009, and 0.01 correspondingly. 2025 196 208 3166 https://creativecommons.org/licenses/by/4.0/ 10.54216/FPA.170114 https://www.americaspg.com/journal/3/article/3166 https://www.americaspg.com/storage/01724333904.pdf