SI18: How to know if you are over-fitting your model parameters

SI18: How to know if you are over-fitting your model parameters

Welcome to The Systematic Investor series. It’s a great privilege for me to invite you to a behind the scenes conversation between some of my favorite systematic investors namely Jerry Parker and Moritz Seibert. We get on a “call” each week to discuss the events that took place through the lens of a Systematic Investor and how the trading strategies we work with are reacting. It’s a raw and honest exploration and we hope you will join and be part of…not least by sending us questions that we can discuss.

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50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - CLICK HERE

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Follow Niels on Twitter, LinkedIn, YouTube or via the TTU website.

IT’s TRUE ? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written here.

And you can get a free copy of my latest book “Ten Reasons to Add Trend Following to Your Portfoliohere.

Learn more about the Trend Barometer here.

Send your questions to info@toptradersunplugged.com

And please share this episode with a like-minded friend and leave an honest Rating & Review on iTunes or Spotify so more people can discover the podcast.

Episode TimeStamps:

00:00 – Intro

02:25 – Weekly recap of performance

08:40 – Top tweets

24:05 – Question 1: CR Capital; Thoughts on Winton retreating from TF

30:55 – Question 2: Bill; Do you add to positions as the trend progresses

34:35 – Question 3: George; Why don’t you include short-term TF systems in a robust TF system

44:40 – Question 4: Nick; How would I know if I’m curve fitting my systems

53:10 – Question 5: Richard; Several questions about: historical data distributions; long-term trend following efficacy and related concerns

01:03:00 – Benchmark performance update

Copyright © 2025 – CMC AG – All Rights Reserved

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PLUS: Whenever you're ready... here are 3 ways I can help you in your investment Journey:

1. eBooks that cover key topics that you need to know about

In my eBooks, I put together some key discoveries and things I have learnt during the more than 3 decades I have worked in the Trend Following industry, which I hope you will find useful. Click Here

2. Daily Trend Barometer and Market Score

One of the things I’m really proud of, is the fact that I have managed to published the Trend Barometer and Market Score each day for more than a decade...as these tools are really good at describing the environment for trend following managers as well as giving insights into the general positioning of a trend following strategy! Click Here

3. Other Resources that can help you

And if you are hungry for more useful resources from the trend following world...check out some precious resources that I have found over the years to be really valuable. Click Here

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