---
title: oi
description: This page deals with open interest (OI) in cryptocurrency using OpenBB
  terminal. The models and charts displaying open interest by exchange, frequency
  and crypto symbol (BTC for instance) are available. You can also review the source
  code and instructions on how to use related Python functions.
keywords:
- OI
- Open Interest
- crypto
- symbol
- crypto symbol
- cryptocurrency
- exchange
- price
- frequency
- model
- chart
- parameter
- View
- Source Code
- dataframe
- BTC
- return
- export
- openbb.crypto.dd.oi
- openbb.crypto.dd.oi_chart
---

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

<HeadTitle title="crypto.dd.oi - Reference | OpenBB SDK Docs" />

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

<Tabs>
<TabItem value="model" label="Model" default>

Returns open interest by exchange for a certain symbol

Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/due_diligence/coinglass_model.py#L148)]

```python
openbb.crypto.dd.oi(symbol: str, interval: int = 0)
```

---

## Parameters

| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| symbol | str | Crypto Symbol to search open interest futures (e.g., BTC) | None | False |
| interval | int | Frequency (possible values are: 0 for ALL, 2 for 1H, 1 for 4H, 4 for 12H), by default 0 | 0 | True |


---

## Returns

| Type | Description |
| ---- | ----------- |
| pd.DataFrame | open interest by exchange and price |
---

</TabItem>
<TabItem value="view" label="Chart">

Plots open interest by exchange for a certain cryptocurrency

Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/due_diligence/coinglass_view.py#L55)]

```python
openbb.crypto.dd.oi_chart(symbol: str, interval: int = 0, export: str = "")
```

---

## Parameters

| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| symbol | str | Crypto symbol to search open interest (e.g., BTC) | None | False |
| interval | int | Frequency (possible values are: 0 for ALL, 2 for 1H, 1 for 4H, 4 for 12H), by default 0 | 0 | True |
| export | str | Export dataframe data to csv,json,xlsx file |  | True |


---

## Returns

This function does not return anything

---

</TabItem>
</Tabs>