WU, Chenyi. Mispricing Detection in the S&P 500 ETF Options Market Based on an XGBoost Model. International Journal of Finance and Investment, [S. l.], v. 5, n. 2, p. 33–37, 2026. DOI: 10.54097/bm3g3b60. Disponível em: https://ijfi.net/index.php/ijfi/article/view/126. Acesso em: 30 apr. 2026.