Region: General | Usage example: Investing only in that stock meant putting all your eggs in one basket.

Put all your eggs in one basket

Meaning

Rely on a single plan or resource.

Financial or strategic caution advice.

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Imagine risking spilling every egg at once.

Early 20th-century financial commentators urged diversification with this metaphor.