Market Capitalisation

"Tags: market cap, shares outstanding, free float, large cap, company value Prerequisites: What Is a Share?, Turnover and Traded Value Share price tells you the price of one unit. Market capitalisation tells you the market value of all equity units together. Questions this article answers How is market capitalisation calculated? Why is share price alone misleading? What is free-float market capitalisation? Does market cap equal the true value of the business? 1. The core formula Market capitalisation, or market cap, is the market price per share multiplied by the total number of outstanding equity shares. Market Capitalisation = Share Price x Shares Outstanding 2. A basic example Suppose a company has 10 crore shares outstanding and each share trades at Rs 300. Its market capitalisation is approximately Rs 3,000 crore. 3. Why share price alone is misleading Company A may trade at Rs 50 with 100 crore shares outstanding. Company B may trade at Rs 1,000 with only 2 crore shares outstanding. Company A has a market cap of Rs 5,000 crore. Company B has a market cap of Rs 2,000 crore. The lower-priced share belongs to the larger company in this example. 4. What market cap represents Market cap represents the market value assigned to the company's outstanding common equity at the current share price. It changes whenever the share price changes or the number of outstanding shares changes. 5. Market cap is not cash available to the company A market cap of Rs 20,000 crore does not mean the company has Rs 20,000 crore in its bank account. It is a market valuation of equity ownership, not a balance-sheet cash figure. 6. Market cap is not the purchase price of the whole business An acquirer must consider debt, cash, control premium and other obligations. Enterprise value is a broader measure often used in business valuation, but it is beyond the basic scope of this lesson. For beginners, the key point is that market cap measures equity value, not every claim on the business. 7. Free-float market capitalisation Free float refers broadly to shares considered available for public trading after excluding certain strategic or locked holdings according to a methodology. Free-float market cap uses only the publicly tradable portion. Major indices often use free-float weighting so that unavailable promoter holdings do not receive the same influence as tradable shares. 8. Large-cap, mid-cap and small-cap labels These labels group companies by relative market size under prevailing classification frameworks. The exact boundaries can change over time as rankings and regulatory frameworks are updated. Size is not the same as quality. A large company can be weak, and a small company can be strong but more volatile and less liquid. 9. How corporate actions affect market cap A stock split increases the number of shares while reducing price proportionately, so market cap should remain approximately unchanged by the split itself. A bonus issue produces a similar mechanical adjustment. A fresh share issue can increase shares outstanding and may change total market cap depending on the issue and subsequent price. 10. Market cap and index weight In a market-cap-weighted index, larger eligible companies usually have greater influence. In a free-float-weighted index, the publicly tradable market value determines the weight. 11. Market cap and liquidity are different A large market cap often supports better liquidity, but the relationship is not guaranteed. A company may have a large promoter holding and limited free float. A smaller company may trade actively. Liquidity must be measured directly using turnover, spread, depth and market impact. 12. Market cap is a moving estimate A 10% share-price rise increases market cap by roughly 10% if shares outstanding are unchanged. This does not mean the company received new cash equal to the increase. It means market participants now value the equity more highly. 13. Common beginner mistakes Calling a Rs 20 share cheap The number of shares outstanding may make the company very large. Treating market cap as company cash It is an equity valuation, not money in the bank. Assuming large cap means low risk Business, valuation and market risks remain. Ignoring dilution New share issuance can change both ownership percentages and market-cap calculations. Assuming market cap equals enterprise value Debt and cash are treated differently in broader valuation measures. 14. DStreet principle Always zoom out from the price of one share to the scale of the entire equity base. 15. Beginner checklist I can calculate market cap from price and shares outstanding. I know market cap is not cash or revenue. I understand why a low share price can belong to a large company. I distinguish total market cap from free-float market cap. I do not equate company size with safety or quality. 16. Quick knowledge check Question: What is the market-cap formula? Answer: Share price multiplied by shares outstanding. Question: Does a stock split automatically change company value? Answer: No, not by itself. Question: What does free float refer to? Answer: The portion considered available for public trading under the relevant methodology. Question: Is market cap the same as cash held by the company? Answer: No. 17. Next lesson Liquidity explains how easily a position can be entered or exited without causing excessive price movement."