What are the fuse rules for US stocks?
During the US trading hours, the US stock market fell by 7%, causing the primary market to fuse; The market decline reached 13%, triggering the secondary market to fuse; The market fell by 20%, which triggered the melting of the tertiary market. The fuse mechanism of each stage is different. For example, when the NYSE triggers the primary and secondary fuses, the trading will be suspended for 15 minutes, and when the tertiary fuses are triggered, the trading will be stopped all day.
Because American stocks have multiple indexes, such as Dow Jones Industrial Average, Nasdaq and S&P 500. The decline of US stocks is measured by the decline of the S&P 500 index.
Is there a fuse rule in China stock market?
At present, there is no fuse mechanism in China stock market, but it has been implemented in China stock market.
20 15, A shares plunged. At that time, thousands of shares fell and thousands of shares were suspended. At that time, the decline, on the one hand, was a continuous surge and accumulated a big bubble, on the other hand, leveraged funds such as fund-raising entered the market, making the market excessively fanatical. In the context of deleveraging, liquidity dried up, leading to a sharp decline in that year. After that, the regulatory authorities learned from the fuse mechanism of US stocks, so as to stabilize the market to a certain extent when there is a systematic downside risk again.
After the publication of the draft for public comment in September 20 15, with the consent of China Securities Regulatory Commission, Shanghai Stock Exchange, Shenzhen Stock Exchange and CICC officially issued the relevant regulations on index fuse, which took effect in June 20 16 and 1 year. However, from the actual operation, the implementation of the fuse mechanism in A-shares did not have the effect of "cooling down" the market, so the fuse mechanism was suspended on 20 161October 8, and the "fuse" mechanism only existed in A-shares for seven days, that is, it withdrew from history.