The point
In Indian mutual fund rules, a large cap is one of the top 100 listed companies by market value. A mid cap is ranked 101 to 250, and a small cap is everything below. Amfi redraws the lists in January and July from a six-month average. The label sorts companies by size rank. It says nothing about quality, safety or what the stock will do next.
What does a large, mid or small cap label actually sort?
It sorts by rank, and the rupee figure follows from the ranking. Business Standard reported on the July 2025 reshuffle. Amfi classes the top 100 stocks by market cap over the previous six months as largecaps. The next 150 are midcaps and the rest are smallcaps (source: Business Standard, 7 July 2025, read 2026-10-04).
Market cap is the share price multiplied by the number of shares outstanding. Wikipedia states it as the market price per common share times the common shares outstanding (source: Wikipedia, Market capitalization, read 2026-10-04). It counts the equity part of a company's value only, so it ignores debt.
Because the buckets are ranks, the rupee cutoff is an output. It is whatever the 100th and the 250th company happen to be worth in that half-year. The same page of Wikipedia notes that there is no official definition of the exact cutoff values worldwide, and that markets and index providers use different numbers.
Why does the same company change label without changing at all?
The cutoff moves with the whole market, so a company can change bucket while its own business stands still. The two sourced readings below show how far the line travels.
- In the July 2023 list, the large cap threshold was ₹48,900 crore. The mid cap cutoff was ₹16,800 crore (source: INDmoney, updated 6 July 2023, read 2026-10-04).
- In the July 2025 list, Nuvama's analysis quoted by Business Standard put the largecap cutoff at ₹91,600 crore, down from ₹1 trillion in December 2024. It expected the midcap threshold at ₹30,800 crore, down from ₹33,200 crore.
Take a company worth ₹60,000 crore. Against the 2023 cutoff of ₹48,900 crore it clears the large cap line with ₹11,100 crore to spare. Against the 2025 cutoff of ₹91,600 crore it falls ₹31,600 crore short and sits in the mid cap bucket. The company has not changed, while the line rose by 87 percent: ₹91,600 ÷ ₹48,900 = 1.87. That example is an illustration, not a named company.
The 2025 reshuffle also shows how much churn one reclassification brings. Ten midcaps, including Indian Hotels, Solar Industries and Mazagon Dock Shipbuilders, moved up to the largecap universe from 1 August, and 11 largecaps moved down (source: same Business Standard report). That is about one name in ten swapped in the top 100 in a single half-year.
What does the label leave out?
It leaves out almost everything that decides whether a holding is a good one. Size is one fact about a company, and the label describes none of the four below.
How the business earns
A large cap can be a bank, a software exporter or a conglomerate with five unrelated businesses. The bucket tells you nothing about which. Two large caps can sit in the same list and behave in opposite ways when interest rates or the rupee move.
How crowded the stock is
The label does not say how many funds already hold the stock. Business Standard reports that category schemes must align their portfolios with the category mandate after each half-yearly reclassification. A reshuffle can therefore force buying and selling that has nothing to do with the company's results.
What you pay for it
A cheap large cap and an expensive large cap carry the same label. So do a cheap and an expensive small cap. A bucket is a size band. Price against earnings is a separate question, and the label never answers it.
How much it swings
Wikipedia notes that small caps are generally riskier than large caps and less able to weather negative macro conditions. That is a tendency across a group, not a fact about any single stock. The small cap bucket starts at rank 251 and has no lower limit. The gap between its largest and smallest name is far wider than inside the large cap bucket.
How should a holder read the label when the buckets are in the news?
Read it as a rank and ask three questions. Which list is this, and when was it drawn? What is the cutoff in rupees right now? What does the portfolio hold, by position, rather than by bucket?
Take a ₹1 crore portfolio with ₹50 lakh in names that Amfi counts as large cap, so 50 percent. One holding is ₹3 lakh, which is 3 percent of the portfolio. If the next reshuffle moves that company to mid cap, the position is still ₹3 lakh. The large cap share becomes ₹47 lakh, or 47 percent, and nothing was bought or sold. The portfolio holds the same rupees as before. Only the sorting moved.
My view: the buckets do one job well, which is showing how big a company is next to the others on the list. They do poorly the job people give them, which is standing in for risk. When a commentator says large caps are out of favour or small caps are crowded, the label has told you where a stock was ranked on the last list. It has not told you why people are buying it.
What does this have to do with a Qatobit index?
Qatobit is a crypto index investing platform in India. Its four QSI Crypto Indices are baskets that Qatobit designs and rebalances monthly on a published methodology, and the weights are published on the home and index pages.
The point of connection is how you read a basket. A label such as large cap is a rank that someone else redraws. An index that holds a stated thesis, with weights you can read and a rebalance you can see before and after, replaces the label with a rule. A rule can be checked against the published methodology, which a label that moves under you cannot.
Each index is a permanent allocation product. The investor makes one decision, the thesis that fits their horizon, and the methodology carries the rest. To see how a published rule differs from a size rank, read what smart beta is and the rule that replaces market cap. For what sits underneath the ranking, read what market cap is and why a crash erases no money. For how an index picks its members, see how the Nifty 50 is calculated and who decides what is in it.
Frequently asked questions
What is the difference between large cap, mid cap and small cap in India?
It is a ranking by market value. In Amfi's classification, the top 100 listed companies by six-month average market cap are large caps, ranks 101 to 250 are mid caps, and the rest are small caps. The rupee cutoff moves each half-year.
How often does Amfi change the large, mid and small cap lists?
Twice a year, in January and July. The revision uses each stock's average market cap over the previous six months. In the July 2025 revision, 10 midcaps moved up to largecap and 11 largecaps moved down.
Does a large cap label mean a stock is safe?
No. The label records size rank and nothing else. It does not describe debt, earnings, price paid or how many funds already hold the stock.
Can a company be large cap in one list and mid cap in another?
Yes, without any change in the business. A company worth ₹60,000 crore cleared the ₹48,900 crore large cap line of July 2023 but sits below the ₹91,600 crore line of July 2025. The illustration is arithmetic, not a named company.
Are Qatobit indices sorted by large, mid and small cap?
No. QSI Core, QSI Growth, QSI VRION and QSI GEQ8 are built on published methodologies. Each is rebalanced monthly, so a stated rule sets the basket, not a size label.
Crypto investments are subject to market risk. Not financial advice.
“A better allocation begins with a better explanation.”
Qatobit principle
Published construction. Fixed cadence. Versioned control.
