Nearly 40% components of Nifty50 changed in a decade ending in Dec 2020

% Big names that are out of the index include BHEL, Sterlite Industries, Jindal Steel, Ambuja Cement, ACC, and SAIL.

% The new entrants comprise Asian Paints, Britannia, Titan, Nestlé, BAF (Bajaj Finance), and Bajaj Finserv. 

% RIL, Infosys, ICICI Bank, and HDFC feature among the top five heavyweights even after a decade.

% Twenty, or 40%, of components that were part of the Nifty50 in December 2010 are no longer part of the index today.

% Sector weighting has also changed — those with high weighting a decade ago were oil and gas (14.7%), private banks (14.5%), and IT (14.3%). Sectors with high weighting in 2020 were private banks (24.7%), IT (16.3%) and oil and gas (12.5%).

% Sectors which lost the most were metals (640 bps), and capital goods (610 bps); the biggest gainers were private banks (1,020 bps) and consumer (470 bps).





 https://www.business-standard.com/article/markets/nearly-40-components-of-nifty50-change-in-a-decade-shows-data-121010500039_1.html