Stock is a part of the ownership of a joint-stock company and a certificate of ownership issued by a joint-stock company. It is a kind of securities issued by a joint-stock company to all shareholders as a holding certificate to raise funds and obtain dividends and bonuses. Stocks are long-term credit instruments in the capital market and can be transferred and traded. With it, shareholders can share the company's profits, but also bear the risks brought by the company's business mistakes. Each share represents the shareholder's ownership of the basic unit of the enterprise. Every listed company will issue shares. Every stock in the same category represents the equal ownership of the company. The share of ownership of the company owned by each shareholder depends on the proportion of shares held by each shareholder to the total share capital of the company. Stock is an integral part of the capital of a joint-stock company and can be transferred and traded. It is the main long-term credit tool in the capital market, but the company cannot be required to return its capital contribution.
Stochastic indicator KDJ is usually a statistical system used for stock analysis. According to the statistical principle, the immature random value RSV of the last calculation period is calculated by the highest price, lowest price and closing price of the last calculation period in a specific period (usually 9 days, 9 weeks, etc.). ) and the proportional relationship between them. Then, according to smma method, the K value, D value and J value are calculated, and the stock trend is judged by drawing. The Chinese name of KDJ Index is also called stochastics, which originated from the futures market. Stochastics KDJ first appeared in the form of KD index, which was developed on the basis of William index. However, the KD indicator only judges the overbought and oversold phenomenon of stocks, while the KDJ indicator combines the concept of moving average speed to form a more accurate basis for buying and selling signals. In practice, K-line and D-line cooperate with J-line to form KDJ index. In the design process, KDJ index mainly studies the relationship between the highest price, the lowest price and the closing price, and also integrates some advantages of momentum concept, power index and moving average. Therefore, it can judge the market quickly, quickly and intuitively, and is widely used in the short-term trend analysis of the stock market. It is the most commonly used technical analysis tool for futures and stock markets.