3min chapter

Better System Trader cover image

185: How to avoid creating trading strategies that degrade quickly - Timothy Masters

Better System Trader

CHAPTER

Unbiased Performance Measures Are Not Representative of Future Trades

Trading system developers often use the term "unbiased" to describe a performance measure. But an unbiased measure is almost certainly optimistic or pessimistic, he says. The trades we observe in our out of sample data set are not representative of future trades,. They're simply a random sample from the possible trades and hence subject to random variation.

00:00

Get the Snipd
podcast app

Unlock the knowledge in podcasts with the podcast player of the future.
App store bannerPlay store banner

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode

Save any
moment

Hear something you like? Tap your headphones to save it with AI-generated key takeaways

Share
& Export

Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode