2, the performance of the pre-increase in the pre-complexity stocks refers to the listed companies generally in a year of course, half-yearly and annual or quarterly reports, in the financial report is about to come out before the performance of the listed companies is very good, there will be a performance increase in the news released in advance, and then there will be a good distribution plan, such as: 10 to 2 or turn 3 to send 1 of the information, such as the stock is called the performance of the pre-increase in the pre-complexity stocks.