1, and the calculation formula of strength index is as follows:
RSI= 100×RS/( 1+RS) or, RSI =100-100 ÷ (1+RS).
Rs = daily average rising point /x daily average falling point.
Where RS =/kloc-the average value of the sum of four-day closing price rises//kloc-the average value of the sum of four-day closing price falls.
2. For example:
If the fluctuation of 14 in recent days is:
2 yuan rose on the first day, 2 yuan fell on the second day, and 3 yuan rose on the third to fifth day; On the sixth day, 4 yuan fell to 2 yuan on the seventh day and 5 yuan on the eighth day; It fell to 6 yuan on the ninth day and rose by 1 yuan on the tenth to twelfth day; 13- 14, fell by 3 yuan.
Extended data:
Application principle:
Here, "extremely strong", "strong", "weak" and "extremely weak" are only a relative analysis concept and the application principle of RSI indicators.
(1) Limited by the calculation formula, the value of the strength index is between 0 and 100 no matter how the price changes.
⑵ A strength index higher than 50 indicates that the market is strong, while a strength index lower than 50 indicates that the market is weak.
(3) The strength index fluctuates between 70 and 30. When the six-day index rises to 80, it means that the stock market has been overbought. If it continues to rise and exceeds 90, it means that it has reached the warning zone of serious overbought, and the stock price has formed a head, which is likely to reverse in a short time.
(4) When the six-day strength index falls to 20, it means that the stock market is oversold. If it continues to fall below 10, it means that it has reached a serious oversold area, and the stock price is likely to stop falling and rebound.
The oversold and overbought value of each type of stock is different.
Baidu encyclopedia -RSI