The Nifty Smallcap 100 is a broad market stock index that tracks the performance of 100 small-cap companies listed on the National Stock Exchange (NSE). Small-cap companies are those that are ranked 251 and above in terms of market capitalisation. The index represents leading small-cap companies across various sectors and serves as a benchmark for small-cap equity investments.

The index is reviewed and rebalanced semi-annually on January 31 and July 31 of every year. During the review, companies that have grown significantly in market capitalization are removed and replaced by smaller companies that meet the inclusion criteria. The top five sectors by weight are financial services, capital goods, information technology, healthcare, and automobiles and auto components.

Step 2 calculates the index value: Nifty Smallcap 100 Value = [(Free-Float Market Cap of All Stocks * Base Index Value) ÷ Base Market Cap]. Here, the base index value is 1,000, and the base market cap is the market capitalisation of all of the index's constituents as of the base date of January 1, 2004.

The best way to gain exposure to the constituents of the Nifty Smallcap 100 index is by investing in ETFs or mutual funds that track the index, enabling diversification and participation in small-cap growth opportunities without having to individually select and manage a portfolio.

Alternatively, if you wish to gain exposure to just a select set of stocks in the index, you could invest in them individually. However, this may not provide the same level of diversification that investing in index funds would.

Economic Growth: Small-cap stocks are very sensitive to changes in the economy. A strong economic environment with rising consumer demand, increased business spending, and favourable government policies are likely to have a major positive impact on the index.

Sectoral Dynamics: The Nifty Smallcap 100 index has stocks from as many as 19 different sectors. Changes in sector-specific factors, such as industry trends, regulatory changes, and competitive dynamics, can positively or negatively influence the overall index.

Investor Sentiment: The prevailing investor sentiment can potentially influence the performance of the index. Optimistic sentiment towards small-cap stocks can drive increased demand and boost the index, whereas negative sentiment can lead to increased selling pressure.

Corporate Earnings: The financial performance of small-cap companies could also influence the index's overall direction. Strong earnings growth and attractive valuations will often lead to a positive impact, whereas earnings that fall short of expectations may put pressure on the index.