What Is Market Capitalization?
Market capitalization is a simple way to estimate how big a company looks in the stock market, based on its share price and the number of shares outstanding.
Start the lessonIntroduction
A way to describe a company's market size
Market capitalization, often called market cap, is the total value of a company's shares at the current market price. In simple terms, it tells you how big the company looks in the market right now. It is a size measure, not the same as cash sitting in the company's bank account.
The formula
Market cap = share price × total shares outstanding
Outstanding shares are the company's shares currently held by shareholders.
₹1,000 example and calculator
Try the calculation
Enter a share price and the number of shares in crore. The result is shown in rupees crore.
Estimated market capitalization
₹100 crore
₹1,000 × 0.1 crore shares
For example, if a company has 10 lakh shares and each share is ₹1,000, its market cap is ₹100 crore. This is an illustration, not data about a real company.
What market cap tells you
It helps describe a company's size
Investors often use market capitalization to group companies by their market value.
A higher market cap generally means the company has a higher total market value based on its share price and shares outstanding. In the next lesson, you'll learn about large-cap, mid-cap, and small-cap companies.
Keep the idea simple
The share price alone does not tell you a company's total market size. You also need to know how many shares are outstanding.
What to keep in mind
Market cap is not the company's cash
- Market cap changes when the share price changes.
- It is not the amount of money the company has in its bank account.
- It is not necessarily the price someone would pay to buy the whole company.
- A larger market cap does not guarantee that a share is safer or a better investment.
Key points
What to remember
- Market cap means market capitalization.
- Formula: share price × total shares outstanding.
- It gives an estimate of a company’s total market value.
- It can change when the share price or share count changes.
- It is not the company's cash balance.
- Market cap alone cannot tell you whether to invest.
This lesson is for education only, not personalized financial, tax, or investment advice. Investments in securities are subject to market risks.
Test yourself
5-question quiz
Choose one answer for each question, then check your score.