The full English name of KDJ is Stochastic Oscillator, which can also be referred to as Stochastic Index. In professional literature or communication in the financial field, people usually refer to the stochastic indicator as "KDJ indicator" or "Stochastic Oscillator indicator". For example: "The KDJ indicator is widely used in technical analysis of financial markets." (KDJ指标在金融市场的技术分析中被广泛使用.)