The biggest taboo in contracts is being aggressive and going against the trend. It seems that his previous actions were guided by someone skilled, but in the end, he couldn't control the weaknesses of human nature.

Adding to the "Rolling Warehouse Brother" who has given back all profits this morning, I want to form a team for the four of them called 'Roller Coaster Team': because they all took a ride on the roller coaster and returned to the starting point (or even lower).

Similar styles: all are aggressive plays of rolling profits;
Similar processes: all have made huge profits through rolling;
Similar outcomes: all have gone from huge profits to currently giving back all profits and even losing principal.