Volume imbalance is the difference between buying and selling volume at a given time in a financial market. It refers to a situation where the number of buying orders (buy volume) and selling orders (sell volume) is unequal, which can indicate that one side of the market is in favor. For example, more buying volume than selling volume suggests demand pressure that could lead to higher prices, while more selling volume could signal falling prices. Volume imbalance is often used in technical analysis to identify potential turning points, trends, or the strength of a current price movement.