MU, Yitong. Research on S&P 500 Forecasting During High Volatility Periods: Comparative Analysis of ARIMA and LSTM Models. Frontiers in Economics and Management, [S. l.], v. 6, n. 12, p. 139–150, 2025. DOI: 10.6981/FEM.202512_6(12).0012. Disponível em: https://fieam.org/index.php/ojs/article/view/161. Acesso em: 13 nov. 2026.