For investors willing to take on very high risk and significant price volatility, the small cap segment may form part of a broader market allocation. Since small cap companies are typically in the early stages of growth, their business performance and stock prices may change significantly over time depending on market conditions and company execution.
To understand the small cap segment, there are two main indices that Indian investors commonly track: Nifty Smallcap 250 and Nifty Smallcap 100. These are diversified stock market indices that form part of the Nifty family of indices managed by the National Stock Exchange (NSE). They may serve as useful tools for research and benchmarking purposes, allowing investors to compare portfolio performance against broader market segments.
In this article, we will understand both indices in simple terms and help you understand which may provide a broader representation of the small cap universe.
Table of Contents
What is the Nifty Smallcap 100 Index?
The Nifty Smallcap 100 Index tracks the performance of 100 small cap companies listed on the National Stock Exchange (NSE). These companies are selected based on factors such as free float market capitalisation and liquidity, in line with NSE index methodology.
In simple terms, the index gives investors a snapshot of how the small cap segment of the market is performing. It includes companies from different sectors, offering broader exposure to smaller listed businesses that may still be in earlier stages of growth.
The index is calculated using the free float market capitalisation method, which means companies with a larger publicly traded market value have a bigger impact on index movement. As of April 30, 2026, the Nifty Smallcap 100 represented around 4.77% of the free float market capitalisation of all stocks listed on the NSE.
The Nifty Smallcap 100 is also used as a benchmark for some index funds, ETFs and mutual fund portfolios focused on the small cap segment. However, like other small cap indices, it can experience high volatility and sharp price movements during changing market conditions.
Source: NSE Indices factsheet and methodology document for Nifty Smallcap 100, as of April 30, 2026.
What is the Nifty Smallcap 250 Index?
The Nifty Smallcap 250 Index tracks the performance of 250 small cap companies that are part of the Nifty 500 and ranked between 251 and 500 based on market capitalisation. It is designed to represent a broader section of the small cap segment of the Indian stock market.
In simple terms, the index gives investors a wider view of the small cap space by covering a larger mix of companies across sectors. Because it includes more companies than narrower small cap indices, it may reflect broader trends within the segment.
The index is calculated using the free float market capitalisation method, which means companies with a larger publicly traded market value have a greater influence on index movement. As of April 30, 2026, the Nifty Smallcap 250 represented around 8.92% of the free float market capitalisation of all stocks listed on the NSE.
The Nifty Smallcap 250 is also used as a benchmark for some index funds, ETFs and mutual fund portfolios focused on the small cap segment. However, like other small cap indices, it can experience high volatility and sharp price movements during changing market conditions.
Source: NSE Indices factsheet and methodology document for Nifty Smallcap 250, as of April 30, 2026.
Nifty Smallcap 250 vs Nifty Smallcap 100: Detailed comparison
Both indices represent the small cap segment, but they differ in terms of coverage, liquidity and market representation:
| Basis | Nifty Smallcap 100 | Nifty Smallcap 250 |
| Number of companies | 100 small cap companies | 250 small cap companies |
| Market coverage | Narrower segment of the small cap space | Broader representation of the small cap universe |
| Liquidity | Relatively higher liquidity | May include stocks with lower trading volumes |
| Diversification | Comparatively lower diversification | Broader diversification across companies and sectors |
| Volatility | Can be highly volatile | May experience relatively higher volatility because of broader exposure |
| Index focus | Focuses on relatively more actively traded small cap stocks | Covers a wider mix of small cap companies |
| Use as benchmark | Commonly tracked for narrower small cap exposure | Often tracked for broader small cap market representation |
| Suitable for understanding | Trends among relatively larger small cap companies | Broader trends within the small cap segment |
Which index is more liquid and investable?
Liquidity plays an important role in mutual funds and index-based products. The Nifty Smallcap 100 generally has higher liquidity than the Nifty Smallcap 250 because its stocks are more actively traded. This may make it relatively easier for fund managers to track the index and manage investor inflows and outflows.
The Nifty Smallcap 250, on the other hand, offers broader exposure to the small cap segment by including a larger number of companies. However, some of these companies may have lower trading volumes, which can affect liquidity and index replication.
Choosing which index to track depends on an investor’s financial goals, investment horizon and risk appetite. Investors looking for a relatively narrower small cap segment with comparatively higher liquidity may prefer to follow the Nifty Smallcap 100. Those wanting a broader view of the small cap universe may consider tracking the Nifty Smallcap 250 alongside other market benchmarks.
Which index should you track as an investor?
Choosing which index to follow depends on an investor’s financial goals, investment horizon and risk appetite. Investors looking for a narrower view of the small cap segment with comparatively higher liquidity may prefer to track the Nifty Smallcap 100. Those wanting broader exposure to the small cap universe beyond the top 100 companies may consider following the Nifty Smallcap 250.
Both indices represent different parts of the small cap market. The Nifty Smallcap 100 focuses on relatively more actively traded small cap companies, while the Nifty Smallcap 250 provides wider market coverage by including companies ranked between 251 and 500 within the Nifty 500.
Conclusion
Both the Nifty Smallcap 100 and the Nifty Smallcap 250 represent different parts of the small cap market. The Nifty Smallcap 100 offers a narrower and relatively more liquid view of the segment, while the Nifty Smallcap 250 provides broader exposure by covering companies ranked between 251 and 500 within the Nifty 500. Which index an investor chooses to follow depends on factors such as financial goals, investment horizon and risk appetite.
FAQs
Is Nifty Smallcap 250 a better representation than Nifty Smallcap 100?
The Nifty Smallcap 250 covers a larger number of companies and may provide a broader view of the small cap segment. The Nifty Smallcap 100 represents a narrower segment focused on relatively more actively traded small cap companies.
Can I invest in Nifty Smallcap 250 via mutual funds?
Yes. Some mutual funds and index funds are designed to track the Nifty Smallcap 250 Index. Investors should review the scheme objectives, risk factors and investment horizon before investing.
What is the volatility difference between Nifty Smallcap 100 and 250?
Both indices can experience high volatility because they track small cap stocks. The Nifty Smallcap 250 may witness relatively higher volatility at times because it includes a broader range of companies across the small cap segment.
Is Nifty Smallcap 100 part of Nifty Smallcap 250?
No. The Nifty Smallcap 100 and Nifty Smallcap 250 are separate indices designed to represent different parts of the small cap market. Their constituents are selected based on NSE index methodology and periodic rebalancing.
Which is riskier: Nifty Smallcap 100 or 250?
Both indices involve exposure to small cap stocks, which can be highly volatile. The Nifty Smallcap 250 may carry relatively broader market risk because it includes a larger number of companies with varying liquidity and market capitalisation profiles.
