Plain-English definitions, reviewed by an independent investor

Stock (Share)

A stock is a slice of ownership in a company; holders share in its profits and losses.

A stock is a slice of ownership in a company; holders share in its profits and losses.

(Ownership unit; value = claim on the business)

Why it matters

It is the building block of nearly every portfolio.

Common confusion

Owning one share makes you a part-owner, but with no say in daily operations.

Definitions reviewed by the Investing Glossary editorial team.

Frequently Asked Questions

Stock vs bond?

Stock is ownership and variable; a bond is a loan with scheduled interest.

Common vs preferred?

Common votes and fluctuates; preferred gets paid first but usually no vote.

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