The Time Period Length and Time Period Type Inputs still apply when using a Start Date-Time. It is necessary to specify both the Date and the Time. Start Date-Time: This Input can optionally be set to a starting Date-Time to begin the calculations at for the Volume Weighted Average Price study.To ensure there is the most detailed data for the calculations, a Tick by Tick Data Configuration is recommended. It is recommended when using this setting that since Intraday charts are required, select Chart > Chart Settings and select Chart Data Type > Intraday Chart Only to always ensure the chart is set to use Intraday data. When this Input is set to Yes, the chart may be automatically reloaded to load in the more detailed Volume at Price data. To base the calculations on the underlying price and volume data which is more detailed than the chart bars, set this Input to Yes. The last trade price of the bar is used, which is the default, and the total volume of the chart bar is used. When this Input is set to No, which is the default, then the price and volume data for the calculations are based on the bars in the chart. Base on Underlying Data: This Input setting only applies to Intraday charts and not to Historical charts.For example, for a period of 1 Day, set this to 1 and set Time Period Type to Days. Time Period Length: Sets the quantity to be used with Time Period Type.The number of Days specified always refers to calendar days and not trading days. This Input works in conjunction with Time Period Length. Time Period Type: Sets the type of time period for the calculation.We compute the Bands for each Period as follows. Let \(TB_j\) and \(BB_j\) be Top Band and Bottom Band number \(j\), respectively \((j=1,2,3,4)\). The Standard Deviation Bands are computed using a Multiplier \(b\). Next, the Offset during the period for the given Inputs is denoted as \(Off(X,n)\), and is calculated as follows. The Standard Deviation during the period for the given Inputs is denoted as \(SD(X,n)\), and is calculated as follows. Then the Volume Weighted Average Price during the length for the given Inputs is denoted as \(VWAP(X,n)\), and is calculated as follows. We begin by computing the Period Volume \(V_P\) for the period. Let \(X\) be a random variable denoting the Input Data, let \(X_i\) be the value of the Input Data at chart bar \(i\), let \(V_i\) be the Volume at chart bar \(i\), and let \(n\) be the length of the period in chart bars for the calculation as specified by the Inputs Time Period Type and Time Period Length. The calculation resets at the begining of each new period in the chart. This calculation gives greater weight to trade prices that have a higher volume. The period of time is set by the Time Period Type and Time Period Length Inputs. This study calculates and displays the Volume Weighted Average Price (VWAP) over the specified period of time for the symbol of the chart. Volume Weighted Average Price (VWAP) with Standard Deviation Lines Home > (Table of Contents) Studies and Indicators > Technical Studies Reference > Volume Weighted Average Price - VWAP - with Standard Deviation Lines Technical Studies Reference