---
title: spread
description: The 'spread' page shows the rolling spread measurement. Users can learn
  how to use the 'spread' command, including its parameters such as 'n_window' which
  defines the window length.
keywords:
- spread
- rolling spread measurement
- n_window
- window length
---

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

<HeadTitle title="stocks/qa/spread - Reference | OpenBB Terminal Docs" />

Shows rolling spread measurement

### Usage

```python
spread [-w N_WINDOW]
```

---

## Parameters

| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| n_window | Window length | 14 | True | None |

![spread](https://user-images.githubusercontent.com/46355364/154308406-f20812a4-fa04-4937-b8de-dc27042f7462.png)

---