Volume Analysis is a technique used to evaluate the level of trading activity in a stock, currency, commodity, or other financial instrument. It is used to assess the strength of price movements, to help determine market trends, and to provide insight into the level of demand or supply for an asset.Volume analysis is calculated by adding up the total number of shares, contracts, or units that have been traded in a given time period, such as a day, a week, or a month. This volume data can then be plotted on a chart along with the stock's price, allowing traders to visualize the relationship between price and volume over time.One of the key concepts in volume analysis is the idea of "volume spikes", or sudden increases in volume that occur over a short period of time. These volume spikes can provide important information about market sentiment and can indicate a potential change in price direction. For example, a large volume spike that occurs during a price increase may indicate a strong buying trend, while a large volume spike during a price decline may indicate a strong selling trend.Another important concept in volume analysis is the idea of "volume accumulation" or "volume distribution". This refers to the ongoing trend of volume over time, and can provide insight into the level of demand or supply for an asset. For example, if the volume of a stock is consistently increasing over time, it may indicate that there is strong demand for the stock and that its price is likely to continue to rise.To calculate the meaning of volume analysis, traders may use various technical indicators, such as the On-Balance Volume (OBV) indicator, which calculates the cumulative total of volume, and compares it to the stock's price to help determine market trends.In conclusion, volume analysis is a key technique used to evaluate trading activity in a financial instrument and to provide insight into market trends. By analyzing volume data in combination with price data, traders can gain a better understanding of the relationship between price and volume, and make informed investment decisions.