While existing studies have not detected a significant standard momentum in the A-share market, recent literature has documented several modified momentum factors. Echoing the findings of Ehsani and Linnainmaa (2022), our study identifies strong factor momentum in the A-share market. Factor...

We report that, in the estimation of univariate GARCH or multivariate generalized orthogonal GARCH (GO-GARCH) models, maximizing the likelihood is equivalent to making the standardized residuals as independent as possible. Based on this, we propose three factor GARCH models in the framework of...