Volume

Volume is the quantity of units or contracts traded during a defined period under the reporting rules of a venue or data source.

Analysts use volume to describe participation and to add context to price moves, breakouts, and liquidity conditions. High volume does not guarantee easy execution because the activity may be fragmented, one-sided, or concentrated at other prices. Crypto and foreign-exchange volume can be especially source dependent, so comparisons should use consistent venues, units, and time windows for reliable analysis over time.