# Technical Studies Reference

- Technical Studies Reference
- Common Study Inputs (Opens a new page)
- Using Studies (Opens a new page)

### Volume-Down

This study calculates and displays the volume of the Down Bars in a chart.

Let \(O_t\), \(C_t\), and \(V_t\) be the Open Price, Close Price, and Volume, respectively, at Index \(t\). The **Volume-Down** at Index \(t\) is denoted as \(V^{(D)}_t\). The method of computation of **Volume-Down** depends on the setting of the Input **Compare Close With**.

If **Compare Close With** is set to PrevClose, then a Down Bar is a bar for which \(C_t < C_{t - 1}\). \(V^{(D)}_t\) is then computed as follows.

If **Compare Close With** is set to Open, then a Down Bar is a bar for which \(C_t < O_t\). \(V^{(D)}_t\) is then computed as follows.

#### Inputs

**Compare Close With**: This Input sets the value for the Close of a bar to be compared with. If you want the Close compared to the Previous Bar's Close, enter 0. If you want it compared to the Current Bar's Open, enter 1.

#### Spreadsheet

The spreadsheet below contains the formulas for this study in Spreadsheet format. Save this Spreadsheet to the Data Files Folder.

Open it through **File >> Open Spreadsheet**.

*Last modified Monday, 04th May, 2020.