According to the regulations, when the fluctuation of the Shanghai Composite Index reaches 5%, the first fuse is triggered, and the fuse time is 15 minutes to suspend trading in the stock market; When the fluctuation of Shanghai Composite Index reaches 7%, the second fuse standard is triggered, and the fuse standard time is directly suspended to 14:57. However, as early as 20 16 1.8, the Shanghai Stock Exchange, Shenzhen Stock Exchange and China Financial Futures Exchange jointly issued a notice, and with the consent of the CSRC, the implementation of index fuse was suspended from 1.8.

On October 4th, 2065438+ 16/kloc-0, A shares were "blown" for the first time in history.

In early trading, the two markets both opened lower, and then the Shanghai Composite Index plummeted, falling below 3,500 points and 3,400 points, and all major sectors fell in succession. In the afternoon, the Shanghai and Shenzhen 300 Index continued to fall after the opening, with 13 and 13 exceeding 5%, causing a fuse, and the three exchanges were suspended for 15 minutes.

20 16 17, at 9: 42 am, the Shanghai and Shenzhen 300 Index fell to 5%, triggering a fuse again, and the two markets will resume trading at 9: 57. Only 3 minutes after the opening, the Shanghai and Shenzhen 300 Index quickly bottomed out again, with the largest drop of 7.2 1%, and hit the fuse threshold for the second time.