> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Post and Collect modes

For each Netting Set, the initial margin is computed in the "Post" and "Collect" modes:

* in "Collect" mode the sensitivities and PV<sup><a id="fnref:1" /><a href="#fn:1" className="footnote-ref" role="doc-noteref">1</a></sup> are taken from the CRIF files *as is*,
* in "Post" mode the sensitivities and PV<sup><a id="fnref:1-2" /><a href="#fn:1" className="footnote-ref" role="doc-noteref">1</a></sup> are multiplied by -1.

Add the hierarchy [Mode](../cube/dimensions/mode) into the view to filter for "Collect" or "Post" or display the calculations side-by-side.

```mermaid theme={"languages":{"custom":["/engine/python-sdk/6.2/languages/pycon.tmLanguage.json"]}}
graph TD;
A{Margin} --> B[Collect]
A -->|Multiply risk and PV by -1| C[Post]
```

<div className="footnotes" role="doc-endnotes">
  <hr />

  <ol>
    <li><a id="fn:1" /><p>see [Schedule](./model-schedule) for more information on PV. <a href="#fnref:1" className="footnote-backref" role="doc-backlink">↩︎</a></p></li>
  </ol>
</div>