The Nifty Next 50, midcap and smallcap indices track the size rungs below the Nifty 50: the Next 50 covers the largest companies just outside the top 50, midcap indices cover the tier below that, and smallcap indices the tier below midcaps. Together they let you see how each layer of the market is doing, not just the very top.
What is the size ladder?
Indian indices slice the market by company size, if terms like large-cap and small-cap are new to you, read what is market capitalisation, and what are large-cap, mid-cap and small-cap stocks? first.
Picture the ladder Vikram climbs down when he explores beyond the headlines:
| Rung | Index (examples) | Roughly covers |
|---|---|---|
| Top | Nifty 50 | The 50 largest, most traded companies |
| Next | Nifty Next 50 | The next set of large companies, ranked just below the top 50 |
| Middle | Midcap indices (e.g. Nifty Midcap 150) | The mid-sized tier below the large-caps |
| Lower | Smallcap indices (e.g. Nifty Smallcap 250) | The small-company tier below midcaps |
The exact number of stocks and rank boundaries in each index are defined by the index provider's methodology and can change, so treat the names as labels for tiers rather than fixed counts. All of these are built with the same free-float weighting logic described in how is an index constructed?
The Nifty Next 50 has a nickname worth knowing: the "junior" index. Its companies are the most likely candidates to be promoted into the Nifty 50 at a future rebalancing, and Nifty 50 exits often drop into it.
Why do these indices behave differently from the Nifty 50?
Because company size changes the character of the stocks inside.
Risk and swing. Smaller companies typically have less diversified businesses, thinner cushions in bad years and fewer institutional owners. In strong markets, midcap and smallcap indices have often risen faster than the Nifty 50; in weak markets they have often fallen harder. The further down the ladder, the wider the swings tend to be, a gradient, not a cliff.
Liquidity. Large-cap stocks trade in huge volumes, so buying and selling barely moves their prices. Down the ladder, daily volumes shrink. In stressed markets, exiting a smallcap position can mean accepting a noticeably worse price, and that same thinness makes smallcap indices move more sharply on the same amount of buying or selling.
Attention. The top 50 companies are tracked by armies of analysts. Smallcaps get far less scrutiny, which means both more room for undiscovered businesses and more room for nasty surprises.
Vikram sees this in practice: on a strong market day his fictional midcap holding, Himalaya Agro, jumps 4% while the Nifty 50 gains 1%. On a panicky day the reverse happens, the Nifty 50 slips 1% and the midcap index drops 3%. Neither day proves anything about the companies; that's just how the tiers move.
How do people use these indices?
Mostly as measuring sticks. If your portfolio holds mid-sized companies, comparing it to the Nifty 50 is unfair in both directions. A midcap index is the honest benchmark. Index funds and ETFs tracking the Next 50, midcap and smallcap indices also exist, letting investors hold a whole tier at once; the vehicles are explained in what is an index fund, and how is it different from an ETF?
Things to keep in mind
- The lower the rung, the bigger the typical swings, in both directions. Past patterns of midcaps or smallcaps outrunning large-caps are not a promise of repetition.
- Liquidity thins out down the ladder; exits from smaller stocks can be slow or costly in stressed markets.
- Index names and boundaries are provider-defined and revised over time. Check the current methodology rather than assuming counts.
- Compare a portfolio to the index of its own tier; judging smallcap holdings against the Nifty 50 misleads in both directions.
Read next
What are sectoral and thematic indices? — Indices that slice the market by business rather than by size.