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What large, mid and small cap mean, and why EV is better than market cap
Published by The Retail Trader · AUG 09, 2026 · Features
'What is the company worth?' — the most common answer to this question is market cap, and it is incomplete. The full answer comes from enterprise value, and its logic is like buying a house.
Market cap means share price times total shares. It tells you what price the market is putting on the company's equity.
On this basis companies are divided into large, mid and small cap. These categories are set by SEBI's rules, according to the ranking by market cap, and are revised from time to time.
The broad difference:
• Large cap — more liquid, more research coverage, less volatile. Easy to sell even in a decline.
• Mid cap — more growth and more risk. Less institutional participation, so moves are sharper.
• Small cap — the most volatile, the least liquid. In a decline there are often simply no buyers, and the circuit gets hit.
• Liquidity is the real difference. The difference in returns shows up later; the difference in being able to get out shows up the same day.
Suppose you are buying a house that already has a loan on it. You should not look only at the price paid to the owner — the loan will land on you as well. And if there is cash lying inside the house, you get that back.
Enterprise value does exactly this: add debt to market cap, subtract cash. That is why two companies can have the same market cap and very different real values.
Wherever debt is large, a comparison without EV is wrong. This is why valuation uses ratios like EV/EBITDA — both sides of the calculation include the capital structure.
A cash-rich company's PE can look expensive while the business is cheap on an EV basis — because part of its price is simply cash.
Market cap tells you the price of the shareholders' stake. Enterprise value tells you what it would take to buy the entire business. The second question is almost always the more useful one.
This article is for educational purposes only — it is not a buy or sell recommendation, makes no claim of guaranteed returns, and is not advisory. Rules, rates and mechanics change from time to time at the exchanges, SEBI and RBI, so verify every number yourself with your broker or an official source.