Shanghai Composite Index is referred to as "Shanghai Composite Index" or "Shanghai Composite Index". It takes all the stocks listed in Shanghai Stock Exchange (including A shares and B shares) as samples, takes the circulating stocks as weights (including circulating share capital and non-circulating share capital), adopts the weighted average method, and takes 199065438+February19 as the base date. The benchmark date index is set to 65438.

2017165438+123 October, A shares opened lower and went lower, and the whole line was deeply adjusted. The Shanghai Composite Index fell below 3,400 points, the biggest one-day drop in the year. The three major stock indexes in Shenzhen, which took the lead in the previous trading day, fell more than 3% simultaneously.

Extended data

Related indicators:

1, moving average position

The 5-day line and 10 line in short-term operation are especially valued by technical schools. Once the index climbs here, short-term customers who believe in technology will sell decisively, so the formation of resistance is natural.

2. Historical highs

The last time it reached the intraday high, it was because some investors lost money when buying at a relatively high price at that time. When the index falls back and rises again, once it is close to the previous high point, the loss-making investors will be eager to close their positions and sell stock index futures one after another, leading to the continuous decline of the stock index. So the top inversion form is formed on the trend chart.

3. Historical lows

The formation of the early low point is due to the balance between long and short sides, which shows that the buyer's strength is strong. Because in this respect, the number of bargain-hunting has increased. Long investors believe that the current stock index is already in a historical position. When the index gradually loses its support at this low point, a considerable number of short sellers will join the selling ranks, which will lead to a sharp decline in the market, just like diving.

Baidu Encyclopedia-Pan Da