---
title: Instrument Public Age Filter
description: "  [![](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-Ori.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-Ori.png)   This filter only exists as a [Buy Filter](https://portfolioboss.com/documentation/buy-filters-panel-guide/). It allows you to select instruments which have been publicly traded within a certain period. For example, stocks fresh out of the IPO tend to have a stronger rally…"
url: "https://portfolioboss.com/documentation/instrument-public-age-filter/"
updated: "2022-08-27"
category: "Chapter 7 - Filters & Rules"
---

# Instrument Public Age Filter

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-Ori.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-Ori.png)

 

This filter only exists as a [Buy Filter](https://portfolioboss.com/documentation/buy-filters-panel-guide/). It allows you to select instruments which have been publicly traded within a certain period.

For example, stocks fresh out of the IPO tend to have a stronger rally and greater profit potential, not just because the hype surrounding the launch but also the growth spurt of a new company (but this isn't always the case). Older stocks on the other hand, have a consistent and more predictable performance for longer term trading.

 

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**1.**  The first parameter defines whether the instrument's age must be "More Than" or "Less Than" the specified period.

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-1st-Param.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-1st-Param.png)

 

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**2.**  The second parameter defines the threshold period; you can enter days or months here by typing and selecting the value.

 

[![](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-2nd-Param.png)](https://portfolioboss.com/wp-content/uploads/2019/10/Instrument-Public-Age-Fillter-2nd-Param.png)

 

---

 

**Note:**

 

This filter can't be applied if you have but one instrument in the strategy's Portfolio.

 

[![](https://portfolioboss.com/wp-content/uploads/2020/04/Portfolio-1-Instrument-1.png)](https://portfolioboss.com/wp-content/uploads/2020/04/Portfolio-1-Instrument-1.png)

 

The filter is grayed out and you can't select to add it:

 

[![](https://portfolioboss.com/wp-content/uploads/2020/04/Instrument-Public-Age-Restricted.png)](https://portfolioboss.com/wp-content/uploads/2020/04/Instrument-Public-Age-Restricted.png)