Portfolio Optimization Using Novel EW-MV Method in Conjunction with Asset Preselection

Priya Singh () and Manoj Jha
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Priya Singh: Maulana Azad National Institute of Technology
Manoj Jha: Maulana Azad National Institute of Technology

Computational Economics, 2024, vol. 64, issue 6, No 20, 3683-3712

Abstract: Abstract Integration of asset preselection with appropriate portfolio optimization techniques can improve the performance of the portfolio optimization models. This paper morphed the potential asset selection and the optimal portfolio construction rather than focusing on one. A large volume of sample data from 25 stocks is used for the experiment from the National Stock Exchange, India, between January 2005 and December 2021. Initially, a 3-step screening approach, an asset selection method is applied to select potential assets. The 3-steps comprise data choice, fundamental screening, and the Long Short Term Memory model anticipating real-time stock prices to shortlist stocks with higher expected returns. The suggested approach is effective in determining the quality of assets. Further, the optimal asset allocation is done by introducing a novel exponentially weighted-mean-variance model. This exponential weighting scheme outperforms the classical Mean-Variance model when applied to the maximum Sharpe ratio model. The proposed model outperforms the five baseline techniques in terms of the Sharpe ratio and average potential returns and risks. Additionally, the proposed model’s resilience across diversified time frames is tested through the incorporation of multiple time windows, demonstrating robustness of the performance.

Keywords: Portfolio optimization; LSTM; Exponentially weighted-mean variance; Preselection; Deep learning (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10614-024-10583-8

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