# Signals Churn Threshold

**URL:** <https://forum.numer.ai/t/signals-churn-threshold/7648>\
**Category:** Announcements\
**Created:** [August 16, 2024, 9:53pm UTC](https://forum.numer.ai/t/signals-churn-threshold/7648 "2024-08-16T21:53:51Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![numerologist](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/numerologist/32/2824_2.png) [@numerologist](https://forum.numer.ai/u/numerologist)\
**Post date:** [September 9, 2024, 6:02pm UTC](https://forum.numer.ai/t/signals-churn-threshold/7648/6 "2024-09-09T18:02:03Z")

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Following my post on [Numerai-induced ticker churn](http://forum.numer.ai/t/better-lgbm-params-signals-v2-data-and-reducing-signals-churn/7638/14), I’ve decided to look into what’s the churn for Numerai targets in the v1 data. After all, that’s what our models try to aim for.

Here are the results: in a perfect world, Numerai would want us to have **40.7%** churn on average (or **28.3%** at the very least). Code and stats:

 ![image](https://canada1.discourse-cdn.com/flex009/uploads/numerai/original/2X/d/d6efb735b1efbbde1ee49f46bf68e82eeb58ec3d.png)

Disclaimer: yes, having big ticker gaps across eras (outlined in the post above as _ticker churn_) would make the _target churn_ worse since it could compare to an era that was over a week ago, but this shouldn’t distort results much realistically since you cannot trade a ticker if it regularly falls in and out from the universe. (so at the end of the day, ticker churn is basically additive)

**To the team:** I remember you mentioned that targets in the main tournament are adjusted for churn. Assuming you want us to have **both** high corr with the target **and** low churn, would it be possible to adjust targets for churn in the V2 signals data too?  
Thanks.

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