A portfolio construction framework using LSTM-based stock markets forecasting


ÇİPİLOĞLU YILDIZ Z., YILDIZ S. B.

International Journal of Finance and Economics, cilt.27, sa.2, ss.2356-2366, 2022 (SSCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1002/ijfe.2277
  • Dergi Adı: International Journal of Finance and Economics
  • Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus, ABI/INFORM, Aerospace Database, Business Source Elite, Business Source Premier, Communication Abstracts, EconLit, Geobase, Metadex, vLex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.2356-2366
  • Anahtar Kelimeler: BIST30, LSTM, portfolio construction, stock market prediction, stock markets
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

A novel framework that injects future return predictions into portfolio constructionstrategies is proposed in this study. First, a long–short-term-memory (LSTM) model is trained to learn the monthly closing prices of the stocks. Then these predictions are used in the calculation of portfolio weights. Five different portfolio construction strategies are introduced including modifications to smart-beta strategies. The suggested methods are compared to a number of baseline methods, using the stocks of BIST30 Turkey index. Our strategies yield a very high mean annualized return (25%) which is almost 50% higher than the baseline approaches. The mean Sharpe ratio of our strategies is 0.57, whereas the compared methods’ are 0.29 and −0.32. Comprehensive analysis of the results demonstrates that utilizing predicted returns in portfolio construction enables a significant improvement on the performance of the portfolios.