Stock price prediction using combined GARCH-AI models

The non-linear and non-stationary nature of financial time series data poses significant challenges for standalone statistical and neural network methods. While predictive modeling in finance often focuses on volatility, there is a notable lack of research on predicting actual stock prices, particul...

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Main Authors: John Kamwele Mutinda, Amos Kipkorir Langat
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Scientific African
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468227624003168
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author John Kamwele Mutinda
Amos Kipkorir Langat
author_facet John Kamwele Mutinda
Amos Kipkorir Langat
author_sort John Kamwele Mutinda
collection DOAJ
description The non-linear and non-stationary nature of financial time series data poses significant challenges for standalone statistical and neural network methods. While predictive modeling in finance often focuses on volatility, there is a notable lack of research on predicting actual stock prices, particularly in the African market. This study addresses this gap by utilizing Airtel stock data from Yahoo Finance, spanning June 28, 2019, to May 8, 2024. The research employs the GARCH model to extract statistical properties, which are then combined with historical prices and fed into LSTM, GRU, and Transformer models leading to GARCH-LSTM, GARCH-GRU, GARCH-Transfomer hybrid models. These hybrid models are benchmarked against standalone LSTM, GRU and Transfomer models using RMSE, MAE, MAPE, and R-squared metrics. Results indicate that hybrid models, especially GARCH-LSTM, significantly outperform standalone models. This integration of GARCH with advanced AI models offers a more robust framework for stock price prediction, enhancing accuracy and reliability in forecasting future prices.
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spelling doaj-art-29d0b47701e54e32b5cefa8cab30cbd72025-08-20T01:57:04ZengElsevierScientific African2468-22762024-12-0126e0237410.1016/j.sciaf.2024.e02374Stock price prediction using combined GARCH-AI modelsJohn Kamwele Mutinda0Amos Kipkorir Langat1African Master’s In Machine Intelligence (AMMI), Senegal; Pan African University Institute for Basic Sciences, Technology and Innovation-JKUAT, Department of Mathematics, Nairobi, KenyaCorresponding author.; African Master’s In Machine Intelligence (AMMI), Senegal; Pan African University Institute for Basic Sciences, Technology and Innovation-JKUAT, Department of Mathematics, Nairobi, KenyaThe non-linear and non-stationary nature of financial time series data poses significant challenges for standalone statistical and neural network methods. While predictive modeling in finance often focuses on volatility, there is a notable lack of research on predicting actual stock prices, particularly in the African market. This study addresses this gap by utilizing Airtel stock data from Yahoo Finance, spanning June 28, 2019, to May 8, 2024. The research employs the GARCH model to extract statistical properties, which are then combined with historical prices and fed into LSTM, GRU, and Transformer models leading to GARCH-LSTM, GARCH-GRU, GARCH-Transfomer hybrid models. These hybrid models are benchmarked against standalone LSTM, GRU and Transfomer models using RMSE, MAE, MAPE, and R-squared metrics. Results indicate that hybrid models, especially GARCH-LSTM, significantly outperform standalone models. This integration of GARCH with advanced AI models offers a more robust framework for stock price prediction, enhancing accuracy and reliability in forecasting future prices.http://www.sciencedirect.com/science/article/pii/S2468227624003168LSTMGRUGARCHTransformers
spellingShingle John Kamwele Mutinda
Amos Kipkorir Langat
Stock price prediction using combined GARCH-AI models
Scientific African
LSTM
GRU
GARCH
Transformers
title Stock price prediction using combined GARCH-AI models
title_full Stock price prediction using combined GARCH-AI models
title_fullStr Stock price prediction using combined GARCH-AI models
title_full_unstemmed Stock price prediction using combined GARCH-AI models
title_short Stock price prediction using combined GARCH-AI models
title_sort stock price prediction using combined garch ai models
topic LSTM
GRU
GARCH
Transformers
url http://www.sciencedirect.com/science/article/pii/S2468227624003168
work_keys_str_mv AT johnkamwelemutinda stockpricepredictionusingcombinedgarchaimodels
AT amoskipkorirlangat stockpricepredictionusingcombinedgarchaimodels