---
title: ad
description: The Accumulation/Distribution Line page provides information about how
  this technical analysis tool operates, based on the close location value, to predict
  trends in stock price. It also covers how to interpret divergence in the indicator,
  usage of the tool, and parameters for customization.
keywords:
- Accumulation/Distribution Line
- On Balance Volume
- close location value
- stock market indicator
- price movement
- technical analysis
- price trends
---

import HeadTitle from '@site/src/components/General/HeadTitle.tsx';

<HeadTitle title="etf/ta/ad - Reference | OpenBB Terminal Docs" />

The Accumulation/Distribution Line is similar to the On Balance Volume (OBV), which sums the volume times +1/-1 based on whether the close is higher than the previous close. The Accumulation/Distribution indicator, however multiplies the volume by the close location value (CLV). The CLV is based on the movement of the issue within a single bar and can be +1, -1 or zero. The Accumulation/Distribution Line is interpreted by looking for a divergence in the direction of the indicator relative to price. If the Accumulation/Distribution Line is trending upward it indicates that the price may follow. Also, if the Accumulation/Distribution Line becomes flat while the price is still rising (or falling) then it signals an impending flattening of the price.

### Usage

```python
ad [--open]
```

---

## Parameters

| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| b_use_open | uses open value of stock | False | True | None |

![ad](https://user-images.githubusercontent.com/46355364/154309283-9512c6c0-dda3-4348-9350-105238676479.png)

---