---
title: om
description: A documentation page providing information about the om function that
  calculates the omega ratio of a selected portfolio with customizable start and end
  parameters.
keywords:
- omega ratio
- portfolio
- start parameter
- end parameter
- om function
---

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

<HeadTitle title="portfolio/om - Reference | OpenBB Terminal Docs" />

Provides omega ratio of the selected portfolio.

### Usage

```python
om [-s START] [-e END]
```

---

## Parameters

| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| start | Start of the omega ratio threshold | 0 | True | None |
| end | End of the omega ratio threshold | 1.5 | True | None |

![image](https://user-images.githubusercontent.com/75195383/163531048-c8efc8f7-d2a2-40ba-acca-811c8b92b264.png)

---