---
title: adx
description: The page provides detailed information about the ADX or Average Directional
  Movement Index, a Welles Wilder style moving average of the Directional Movement
  Index (DX). It features guidelines on its usage, elaboration of its parameters,
  and aids readers in interpreting it for identifying strong and weak trends.
keywords:
- ADX
- Welles Wilder
- Directional Movement Index
- DX
- trend
- parameters
- n_length
- n_scalar
- n_drift
- n_length
- n_scalar
- n_drift
---

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

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

The ADX is a Welles Wilder style moving average of the Directional Movement Index (DX). The values range from 0 to 100, but rarely get above 60. To interpret the ADX, consider a high number to be a strong trend, and a low number, a weak trend.

### Usage

```python
adx [-l N_LENGTH] [-s N_SCALAR] [-d N_DRIFT]
```

---

## Parameters

| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| n_length | length | 14 | True | None |
| n_scalar | scalar | 100 | True | None |
| n_drift | drift | 1 | True | None |

![adx](https://user-images.githubusercontent.com/46355364/154309667-c67f6078-822f-452d-9853-ffffa9172670.png)

---