SI155: How to Create the Perfect Backtest ft. Richard Brennan

<p>This week, Richard Brennan joins us to discuss whether there are any similarities between Trend Following and other investment approaches, the benefits of ‘forward-testing’ a system, the art of ‘hunting outliers’, what the optimum level of leverage could be, how much total portfolio ‘risk-to-stop’ to aim for, some thoughts on margin requirements, and which other strategy complements Trend Following the best.&nbsp;We also took a deep dive into backtesting, touching on topics such as: how much we can safely derive from a backtest, why a backtest with a smooth equity curve should raise alarm bells, a good checklist to use when creating a backtest, and whether some level of curve-fitting may actually be required for a good backtest.</p><p><strong>-----</strong></p><p><strong>50 YEARS OF TREND FOLLOWING BOOK AND BEHIND-THE-SCENES VIDEO FOR ACCREDITED INVESTORS - </strong><a href="https://dunncapital.com/DUNN%2050-Year%20Book-TTU" rel="noopener noreferrer" target="_blank"><strong>CLICK HERE</strong></a></p><p><strong>In this episode, we discuss:</strong></p><ul><li>Which strategies would complement portfolio with 80% already allocated to Trend Following</li><li>Why 'forward-testing' a system can be quite important before going live</li><li>The art of finding and latching onto outlier performers</li><li>Leverage, margin, &amp; total portfolio risk-to-stop</li><li>What information to look for in a backtest</li><li>How to avoid 'curve-fitting' (and could some curve-fitting be beneficial?)</li></ul><br /><p>-----</p><p><br /></p><p>Follow Niels on <a href="https://twitter.com/toptraderslive" rel="noopener noreferrer" target="_blank"><strong>Twitter</strong></a>, <a href="https://www.linkedin.com/in/nielskaastruplarsen" rel="noopener noreferrer" target="_blank"><strong>LinkedIn</strong></a>, <a href="https://www.youtube.com/user/toptraderslive" rel="noopener noreferrer" target="_blank"><strong>YouTube</strong></a><strong> </strong>or via the <a href="https://www.toptradersunplugged.com/" rel="noopener noreferrer" target="_blank"><strong>TTU website</strong></a>.</p><p><strong>IT’s TRUE </strong>? – most CIO’s read 50+ books each year – get your FREE copy of the Ultimate Guide to the Best Investment Books ever written&nbsp;<a href="https://www.toptradersunplugged.com/Ultimate" rel="noopener noreferrer" target="_blank"><strong>here</strong></a>.</p><p>And you can get a free copy of my latest book “<strong>Ten Reasons to Add Trend Following to Your Portfolio</strong>” <a href="https://www.toptradersunplugged.com/10-reasons-shownotes" rel="noopener noreferrer" target="_blank"><strong>here</strong></a>.</p><p>Learn more about the Trend Barometer <a href="https://www.toptradersunplugged.com/resources/market-trends/" rel="noopener noreferrer" target="_blank"><strong>here</strong></a>.</p><p>Send your questions to&nbsp;<a href="mailto:info@toptradersunplugged.com%22%20%5Ct%20%22_blank" rel="noopener noreferrer" target="_blank">info@toptradersunplugged.com</a></p><p>And please <strong>share this episode</strong> with a like-minded friend and <strong>leave an honest Rating &amp; Review</strong> on&nbsp;<a href="https://www.toptradersunplugged.com/reviewttu" rel="noopener noreferrer" target="_blank"><strong>iTunes</strong></a>&nbsp;or <a href="https://open.spotify.com/show/2OnOvLbIV3AttbFLxuoaBW" rel="noopener noreferrer" target="_blank"><strong>Spotify</strong></a> so more people can discover the podcast.</p><p>Follow Rich on <a href="https://twitter.com/RichB118" rel="noopener noreferrer" target="_blank"><strong>Twitter</strong></a>.</p><p><strong>Episode TimeStamps:</strong></p><p><strong>00:00</strong>&nbsp;– Intro</p><p><strong>03:25</strong>&nbsp;– A massive thank you to listeners of the show for leaving your 5-star reviews on iTunes</p><p><strong>03:47</strong>&nbsp;– Macro recap from Niels</p><p><strong>05:57</strong>&nbsp;– Weekly review of performance</p><p><strong>10:59 –</strong>&nbsp;Trend Followers as hunters of outliers</p><p><strong>13:34 </strong>&nbsp;<strong>–</strong> Q1; Louis: Do you recommend starting a new model with lower leverage, so that it has time to adjust to the markets?</p><p><strong>20:02 </strong>&nbsp;<strong>–</strong> Q2; Aaron: If you had to choose a different strategy to complement your main Trend Following strategy, which one would you choose, and why?</p><p><strong>25:03 </strong>&nbsp;<strong>–</strong> Q3; Graham: How much margin do you use on different instruments? What total portfolio risk-to-stop do you recommend?</p><p><strong>35:23 –</strong>&nbsp;‘The good, the bad, and the ugly’ of backtesting</p><p><strong>52:50 –</strong>&nbsp;How to make a backtest as objective and robust as possible</p><p><strong>01:25:49</strong>&nbsp;<strong>–</strong> Benchmark performance update</p><p>Copyright © 2025 – CMC AG – All Rights Reserved</p><p>----</p><p><strong>PLUS:</strong> Whenever you're ready... here are 3 ways I can help you in your investment Journey:</p><p><strong>1. eBooks that cover key topics that you need to know about </strong></p><p>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. <a href="https://www.toptradersunplugged.com/resources/ebooks/" rel="noopener noreferrer" target="_blank"><strong>Click Here</strong></a></p><p><strong>2. Daily Trend Barometer and Market Score </strong></p><p>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! <a href="https://www.toptradersunplugged.com/resources/market-trends/" rel="noopener noreferrer" target="_blank"><strong>Click Here</strong></a></p><p><strong>3. Other Resources that can help you</strong></p><p>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. <a href="https://www.toptradersunplugged.com/resources/" rel="noopener noreferrer" target="_blank"><strong>Click Here</strong></a></p><p><a href="https://www.toptradersunplugged.com/legal/privacy-policy/" rel="noopener noreferrer" target="_blank">Privacy Policy</a></p><p><a href="https://www.toptradersunplugged.com/disclaimer/" rel="noopener noreferrer" target="_blank">Disclaimer</a></p>