“…This imitation is carried out to calm their nerves and bring their preferences more in line with those of other investors [8]. Some studies mention that several crises caused herding behavior such as: (1) Crisis of financial global, (2) investor sentiment [9][10][11][12], (3) the presence of market sentiment [13] , (4) the role of financial analysts [14], (5) the role of forecasters [15][16][17], (6) the role of foreign investors [15], (Chen et al 2012), (7) the role of institutional investors [18], (8) cascade information [19], (9) the existence of an infectious disease pandemic [20][21][22]3,23], (10) government-released macro and micro news [21,22], (Hwang & Salmon, 2004c); [22], (11) trading volume (Hanafi & Abaoub, 2016; Hsieh et al 2011; Vo & Phan, 2017), (12) fear (Huang & Wang, 2017b) and (13) ). The market attitude of investors during the Covid-19 outbreak contributes to this herding behavior.…”