Engineering Alpha

Engineering Alpha

Stationarity Explained Without Math Anxiety

The First Thing to Check

Sofien Kaabar, CFA's avatar
Sofien Kaabar, CFA
Mar 03, 2026
∙ Paid

If you’ve spent any time around time series, you’ve probably heard this word thrown around like it’s sacred:

Stationarity.

It sounds intimidating. It’s often wrapped in equations. And it’s usually introduced in a way that makes perfectly capable people think, “Maybe this isn’t for me.”

Let’s fix that.

You don’t need heavy math to understand stationarity. Yo…

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