Short selling, also known as short selling, bearish selling, short selling (Hong Kong terminology) and short selling (Singapore and Malaysia terminology) is an investment term of stocks and futures, and it is also a mode of operation of the stock and futures markets.
Puncture refers to the risk that the customer's equity in the customer's account is negative, that is, the customer not only loses all the margin in the account before opening the position, but also owes money to the futures company.