---
title: Portfolio Position Limit Filter
description: "  [![](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Buy.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Buy.png)   This filter only exists as a [Buy Filter](https://portfolioboss.com/documentation/buy-filters-panel-guide/). It allows you to *limit* the number of positions originating from the *same* Portfolio. So for example, your strategy contains various Portfolios, each representing a different sector (sectors like…"
url: "https://portfolioboss.com/documentation/portfolio-position-limit-filter/"
updated: "2023-01-14"
category: "Chapter 7 - Filters & Rules"
---

# Portfolio Position Limit Filter

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Buy.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Buy.png)

 

This filter only exists as a [Buy Filter](https://portfolioboss.com/documentation/buy-filters-panel-guide/).
 It allows you to *limit* the number of positions originating from the *same* Portfolio.

So for example, your strategy contains various Portfolios, each representing a different sector (sectors like financial, industry, technology, commodity, etc.); if you don't want to enter so many Positions within the *same* sector, you can limit the number of Positions using this filter.

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Sector-Limit_00001_00000.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Sector-Limit_00001_00000.png)

 

This is a good way to diversify your Positions, thus reducing risk.

This filter has one parameter only, which defines the *maximum* *amount* of Position from within the *same* Portfolio. For example, with a value of 5 here you can only enter 5 Positions (5 different instruments) from within the same Portfolio at any given time.

If 5 Positions have been entered from that Portfolio, then no more instruments from that Portfolio will be considered as a buy, until any of the previous 5 Positions have been exited (when they hit [Switch Day](https://portfolioboss.com/documentation/system-settings-panel-guide/#monthlyswitch) or [Sell Filters](https://portfolioboss.com/documentation/sell-filters-panel-guide/), for example).

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Param.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Portfolio-Position-Limit-Filter-Param.png)

 

Now, there's a warning on this parameter if you input a value equal to (or greater than) the [Total Positions to Hold](https://portfolioboss.com/documentation/system-settings-panel-guide/#totalpositions):

 

![](https://portfolioboss.com/wp-content/uploads/2023/01/fytusre56awe45g_00000.png)

 

Obviously, that's because the theoretical maximum from each Portfolio can't exceed the total number of Positions the strategy holds at any given time.

 

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#### Note:

If this is your first time using the Strategy, obviously no Positions have been entered. But the limited Positions have been *reserved* for instruments that *rank highly* from that Portfolio (based on the [Ranking Rules](https://portfolioboss.com/documentation/ranking-panel-guide/)), so essentially it’s a race toward the top rank for the instruments in that Portfolio.