{"id":281137,"date":"2026-09-28T11:03:27","date_gmt":"2026-09-28T11:03:27","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/is-your-strategy-overfitted-why-every-extra-rule-costs-you-every-month\/"},"modified":"2026-09-28T11:03:27","modified_gmt":"2026-09-28T11:03:27","slug":"is-your-strategy-overfitted-why-every-extra-rule-costs-you-every-month","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/is-your-strategy-overfitted-why-every-extra-rule-costs-you-every-month\/","title":{"rendered":"Is Your Strategy Overfitted? Why Every Extra Rule Costs You Every Month"},"content":{"rendered":"<div class=\"youtubomatic-video-container\"><iframe loading=\"lazy\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/o0jPMBI0m4g?autoplay=1&#038;controls=1&#038;hl=en\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>There is a moment in building a system where adding one more condition always improves the<br \/>\nbacktest, and it is the most dangerous moment in the whole process. \ud83c\udfaf<\/p>\n<p>The tax is paid later, and it is paid every month, in the form of a system that behaves in ways<br \/>\nyou cannot predict when conditions move even slightly.<\/p>\n<p>Most of the ideas that made the curve prettier did not survive that. Two of them made more money<br \/>\nin the fitted window and still lost, once the search width was accounted for.<\/p>\n<p>**What I found:**<br \/>\nThe models that keep working after the backtest ends tend to be the ones with few moving parts<br \/>\nyou can hold in your head. Not because simple is virtuous, but because you can tell when a simple<br \/>\nthing has broken.<\/p>\n<p>If you have tested this yourself, I want to hear what you found.<\/p>\n<p>Checkout Meta Trader 5 trading bots and Trading View indicators, plus the daily XAU and BTC bias: <a href=\"https:\/\/kenkem.biz\" target=\"_blank\">https:\/\/kenkem.biz<\/a>?utm_source=youtube&#038;utm_medium=mvp_teaching&#038;utm_campaign=free_door<\/p>\n<p>#quantitativetrading<\/p>\n<p>#Shorts<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There is a moment in building a system where adding one more condition always improves the backtest, and it is the most dangerous moment in the whole process. \ud83c\udfaf The tax is paid later, and it is paid every month, in the form of a system that behaves in ways you cannot predict when conditions move even slightly. Most of the ideas that made the curve prettier did not survive&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[1],"tags":[],"class_list":["post-281137","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Is Your Strategy Overfitted? 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