Volume, momentum, and adoption metrics are analytical tools used in financial markets to understand market movement and trends. Here is a brief explanation of each:

### 1. Volume

- **Definition**: It refers to the number of shares or contracts that have been traded over a given period of time.

- **Usage**: Volume is used to confirm price trends. For example, if prices rise with high volume, it may indicate the strength of the trend.

### 2. Momentum

- **Definition**: It is a measure of the speed at which prices change over a given period. It can be calculated using indicators such as the momentum indicator or rate of change.

- **Usage**: Momentum is used to determine whether prices will continue to move in a current trend. Momentum is typically considered positive if prices are rising rapidly, and negative if prices are falling.

### 3. Adoption Metrics

- **Definition**: It refers to the extent to which a product or service is accepted and used in the market. They can include the number of active users, growth rate, and customer retention.

- **Use**: They are used to evaluate the success of new products, especially in the areas of technology and innovation. These numbers help companies understand the level of demand and the effectiveness of their marketing strategies.

### Summary

These indicators help traders and investors make informed decisions based on market analysis.