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Portfolio Optimization-Based Stock Prediction Using Long-Short Term Memory Network in Quantitative Trading

Van-Dai Ta · Chuan-Ming Liu · Direselign Addis

191 citations0/0 files storedApplied Sciences

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Stock Market Forecasting Methods Financial Markets and Investment Strategies Financial Analysis and Corporate Governance

Abstract

In quantitative trading, stock prediction plays an important role in developing an effective trading strategy to achieve a substantial return. Prediction outcomes also are the prerequisites for active portfolio construction and optimization. However, the stock prediction is a challenging task because of the diversified factors involved such as uncertainty and instability. Most of the previous research focuses on analyzing financial historical data based on statistical techniques, which is known as a type of time series analysis with limited achievements. Recently, deep learning techniques, specifically recurrent neural network (RNN), has been designed to work with sequence prediction. In this paper, a long short-term memory (LSTM) network, which is a special kind of RNN, is proposed to predict stock movement based on historical data. In order to construct an efficient portfolio, multiple portfolio optimization techniques, including equal-weighted modeling (EQ), simulation modeling Monte Carlo simulation (MCS), and optimization modeling mean variant optimization (MVO), are used to improve the portfolio performance. The results showed that our proposed LSTM prediction model works efficiently by obtaining high accuracy from stock prediction. The constructed portfolios based on the LSTM prediction model outperformed other constructed portfolios-based prediction models such as linear regression and support vector machine. In addition, optimization techniques showed a significant improvement in the return and Sharpe ratio of the constructed portfolios. Furthermore, our constructed portfolios beat the benchmark Standard and Poor 500 (S&P 500) index in both active returns and Sharpe ratios.

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References

1993Common risk factors in the returns on stocks and bonds 1952PORTFOLIO SELECTION*2017Deep learning with long short-term memory networks for financial market predictions 1980An Empirical Investigation of the Arbitrage Pricing Theory 2017A deep learning framework for financial time series using stacked autoencoders and long-short term memory 2017Deep learning networks for stock market analysis and prediction: Methodology, data representations, and case studies 2016Deep Learning for Finance: Deep Portfolios 201360 Years of portfolio optimization: Practical challenges and current trends

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