AI engineering glossary · Time series recsys

What is cointegration?

Cointegration: A situation in which several non-stationary series each wander, but some combination of them stays stable, meaning they share a long-run link. It is used in pairs trading and in error-correction models.

Level: advancedTopic: Time series recsys

Cointegration: an example

Two similar stocks drift, but their price gap keeps returning to a stable level.

Related terms

More Time series recsys terms

Where you learn it

Cointegration is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

Before you go

Take the cheat sheet with you

One free PDF: the key AI-engineering terms, formulas and Python idioms. No spam; unsubscribe any time.