Volume-Weighted Average Price: Calculation and Intraday Uses
Summary
The article explains volume-weighted average price (VWAP) as a cumulative average that weights prices by traded volume. It walks through an intraday calculation using minute-level stock data: derive a typical price from each bar’s high, low, and close, multiply by volume, accumulate those products and volume, then divide the cumulative price-volume total by cumulative volume. The worked example uses Amazon data and shows how VWAP changes across the opening minutes of a session.
The article describes several uses: comparing current price with VWAP as a directional signal, confirming a trend, assessing execution for large institutional orders, and checking trade profitability against a benchmark. It characterizes price above VWAP as bullish and below it as bearish, while acknowledging that VWAP is lagging and generally suited to intraday use. These interpretations are presented as basic heuristics, not tested rules; price-volume signals can be ambiguous, and the article notes that strong one-directional sessions may offer few crossovers. It does not provide performance evidence or a complete risk-managed strategy.
Key ideas
- VWAP is calculated by dividing cumulative price times volume by cumulative volume.
- A typical price for each bar can be estimated from its high, low, and close.
- Traders may compare price with VWAP to assess intraday direction or confirm a trend.
- Institutions can use VWAP as an execution benchmark when working large orders.
- VWAP is a lagging measure intended mainly for intraday use, and some sessions provide few crossover signals.
- The article presents VWAP interpretations as heuristics rather than validated standalone trading rules.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.