First of all, the sharp rise and fall of the main force may be caused by changes in market sentiment. When the market is optimistic, investors will be more inclined to buy stocks, thus pushing up prices; When the market sentiment is pessimistic, investors will be more inclined to sell stocks, which will lead to a decline in prices. In addition, economic, political and social events may also have an impact on market sentiment, which in turn will lead to a sharp rise and fall in major stocks.
Secondly, the reasons for the sharp rise and fall of the main stocks may also be related to internal factors of the company. For example, the company's announcement of poor performance, senior management changes, company violations and other news will have a negative impact on the stock, which will lead to price decline; On the contrary, the company's announcement of new products, cooperation, performance breakthroughs and other news will have a positive impact, leading to price increases.
In addition, the sharp rise and fall of major stocks in the short term may also be related to the flow of market funds. In a capital-rich market environment, capital will flow into the main stocks, prompting their prices to rise; In the case of tight market funds, funds will be withdrawn from the main stocks, leading to a decline in their prices.
Finally, the sharp rise and fall of the main stocks are also related to technical factors. Technical analysis refers to the fluctuation trend and form of stock price on the chart, including moving average, K-line chart, MACD and RSI. The results of technical analysis will affect investors' expectations and investment behavior, thus affecting the main stock price.