There are only two kinds of unilateral contact (such as stocks).
Buy more, do more, sell more, close your position.
Open positions for selling, buying and closing positions.
Being bullish means that the party whose price rises will buy.
A short position refers to the selling of the party whose price falls.
So bulls are made up of bulls and short positions.
Short positions consist of short positions and closed positions.
The list is made up of the party who actively eats the passive list.
There are four kinds of lists, which will be displayed on the disk in a large proportion.
Specific knowledge can be sent to information consultation.