Market Capitalisation

Market capitalisation or Market Cap is the total value of a company's shares.

1 min read Learning to Invest

What it means

Market capitalisation or Market Cap is the total value of a company's shares. It's calculated by multiplying the share price by the number of shares in circulation.

Example

A company with 100 million shares trading at £20 each has a market capitalisation of £2 billion.

Why it matters

Market capitalisation gives you a sense of a company's size and is often used to group companies into large-, mid- and small-cap categories.

A company's market capitalisation changes whenever its share price changes.

What does a larger market capitalisation mean?

It usually means the company is worth more overall, but it doesn't necessarily mean it's a better investment.

Related terms

This term comes up a lot when you're learning to invest.

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