DDE (DailyDollarVolume) indicator is a technical analysis indicator used to measure market trading activity. It calculates the total dollar volume of all contracts traded in a given market during a given period. The DDE indicator is commonly used for technical analysis of markets such as stocks, futures, forex, and cryptocurrencies.

The DDE indicator can help traders understand market trading enthusiasm and liquidity, and then judge market trends and price movements. When the DDE indicator rises, it may mean that market trading activities increase and price volatility increases; when the DDE indicator drops, it may mean that market trading activities decrease and price volatility decreases.

It should be noted that the DDE indicator cannot be used alone to predict market trends, but needs to be used in conjunction with other technical analysis tools and indicators to obtain more comprehensive market analysis results. At the same time, the accuracy of the DDE indicator will also be affected by data sources, calculation methods and market environment. Therefore, when using the DDE indicator for technical analysis, you should be cautious and make comprehensive judgments in combination with other analysis methods and market information.