Episode 031: Listener question - “Is your out of sample testing even valid?”
Update: 2019-05-09
Description
Strategy validation is a crucial part of live trading. Get it wrong and the results can be disastrous. Traders rely on various techniques to validate strategies, including out of sample testing, but how do we know if the approaches we’re using are even valid? In today’s podcast episode we discuss a series of questions submitted by trader Sam. Sam raises a number of interesting points about out of sample testing that all traders need to consider, including: How much out of sample data is sufficient to identify a stable relationship, How do you know that what worked in Out of Sample testing will continue to work, Is it even possible to avoid curve-fitting, Why you should NEVER use trading techniques as crutches, Plus much more. Do you have any trading questions you’d like answered? Submit them here, and we may cover them in a future episode!
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