VWAP, or Volume-Weighted Average Price, is a measure of the average price at which a stock traded over a given timeframe (typically one day).  Assume, for example, the aggregate trades for stock ABC on day ‘T’ equals 100 shares at $21.00, another 100 shares at $22.00 and 300 shares at $24.00. The calculation for the VWAP of ABC for day ‘T’ is as follows: