BSE SMLCAP index quote on NDTVProfit.com. Get latest stock market news on BSE SMLCAP stock prices, BSE SMLCAP Index constituents, BSE SMLCAP latest News, Charts, Advancing Stocks, Declining Stocks NIFTY Smallcap 250 represents the balance 250 companies (companies ranked 251-500) from NIFTY 500. This index intends to measure the performance of small market capitalisation companies. Market Representation. The NIFTY Smallcap 250 Index represents about 6.4% of the free float market capitalization of the stocks listed on NSE as on March 29, 2019. About NSE Nifty 50 Index The NIFTY 50 is the flagship index on the NSE, computed using a float-adjusted, market capitalization weighted methodology.