Volume-Weighted Average Price

Volume-weighted average price (VWAP) is a widely used trading benchmark and technical indicator that reflects the average price at which a security or derivative has traded during a period, weighted by traded volume.

History

VWAP emerged in the 1980s as computerized trading began reshaping market behavior, with its first known implementation credited to James Elkins at Abel Noser in 1984. The indicator was developed to address the practical needs of institutional traders, aiming to execute large orders while minimizing market impact. Over time, VWAP became a standard tool in both institutional and retail trading platforms and a core component in algorithmic trading strategies.

Usage

VWAP calculates the total dollar value traded for every transaction (price multiplied by volume) and divides it by the total volume during the period, usually intraday. The formula is:

Or

(total value traded) / (total volume traded)

Where total value traded is the dollar sum of all transactions during the period of measurement, and total volume traded is the total number of shares traded in those transactions.

The period of measurement can be any interval. Brokerages that offer clients the ability to buy and sell at VWAP prices often have a short interval, e.g., one-minute windows. The interval can be longer or shorter to suit other technical analysis purposes (e.g. hourly, daily, weekly, monthly, etc).

This indicator acts as a trading benchmark for assessing trade execution quality, helps traders compare the current price to the average price, and is frequently used to time entries and exits or to identify support/resistance levels.

Institutional traders use VWAP to minimize market impact for large trades, often breaking orders into smaller pieces distributed throughout the trading session to align with market volume. Algorithmic trading systems routinely incorporate VWAP for optimized order routing and execution.

VWAP also serves retail traders as a tool for gauging whether trades are being executed at advantageous prices relative to the average for the day. Mean-reversion and trend-following strategies commonly use VWAP, and variations such as Anchored VWAP allow users to set custom timeframes for additional analytical flexibility.

Key Users

Key users of VWAP include:

• Institutional traders (mutual funds, pension funds, hedge funds): Use VWAP as a benchmark to minimize market impact and evaluate execution quality.
• Algorithmic trading systems: Employ VWAP in trade execution logic.
• Broker-dealers: Offer VWAP execution services.
• Retail traders: Apply VWAP for technical analysis, assessing entries and exits, and monitoring market sentiment.

VWAP is widely applicable across asset classes, including equities, futures, foreign exchange, and cryptocurrencies.

VWAP Example

A brokerage accepts buy orders for a stock based on a one-minute VWAP. During a one-minute period, three transactions take place:

• 100 shares traded at $25.00, for a dollar value of $2,500
• 3000 shares traded at $25.10, for a dollar value of $75,300
• 1000 shares traded at $25.15, for a dollar value of $25,150

The total dollar value of the shares traded was $102,950. The total number of shares traded was 4,100. The VWAP is $102,950 / 4,100 or $25.11 (rounded up) for that minute.