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OpenBB/website/content/sdk/reference/crypto/tools/il.md
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Co-authored-by: teh_coderer <me@tehcoderer.com>
2022-11-22 16:47:03 +00:00

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---
title: il
description: OpenBB SDK Function
---
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
# il
<Tabs>
<TabItem value="model" label="Model" default>
Calculates Impermanent Loss in a custom liquidity pool
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/tools/tools_model.py#L57)]
```python
openbb.crypto.tools.il(price_changeA: float, price_changeB: float, proportion: float, initial_pool_value: float)
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| price_changeA | float | price change of crypto A in percentage | None | False |
| price_changeB | float | price change of crypto B in percentage | None | False |
| proportion | float | percentage of first token in pool | None | False |
| initial_pool_value | float | initial value that pool contains | None | False |
---
## Returns
| Type | Description |
| ---- | ----------- |
| Tuple[pd.DataFrame, str] | - pd.DataFrame: dataframe with results<br/>- str: narrative version of results |
---
</TabItem>
<TabItem value="view" label="Chart">
Displays Impermanent Loss in a custom liquidity pool
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/tools/tools_view.py#L56)]
```python
openbb.crypto.tools.il_chart(price_changeA: int, price_changeB: int, proportion: int, initial_pool_value: int, narrative: bool = False, export: str = "")
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| price_changeA | float | price change of crypto A in percentage | None | False |
| price_changeB | float | price change of crypto B in percentage | None | False |
| proportion | float | percentage of first token in pool | None | False |
| initial_pool_value | float | initial value that pool contains | None | False |
| narrative | str | display narrative version instead of dataframe | False | True |
| export | str | Export dataframe data to csv,json,xlsx file | | True |
---
## Returns
This function does not return anything
---
</TabItem>
</Tabs>