1. Most people in the stock market collectively sell stocks in the bearish market;

2. Short-selling stock index futures: China Stock Exchange 20 10 launched stock index futures, which can be long or short. At present, shorting the stock market should refer to the shorting of stock index futures.

Short selling of stock index futures is also called short selling by securities lending, that is, short sellers lend stocks to securities agents first, and then buy them back to securities agents at a low price after the stock price falls, so as to earn the falling price difference.