Eligibility Criteria for Selection of Stocks in the Bank Nifty index:
Companies should form part of NIFTY 500 at the time of review.
Companies should form a part of the Banking sector.
The company's trading frequency should be at least 90% in the last six months.
The company should have a listing history of 6 months.
Companies that are allowed to trade in the F&O segment are only eligible to be constituents of the index.
Final selection of 12 companies shall be done based on the free-float market capitalization of the companies.
Weightage of each stock in the index is calculated based on its free-float market capitalization such that no single stock shall be more than 33% and weightage of top 3 stocks cumulatively shall not be more than 62% at the time of rebalancing.