Under the new methodology, which would come into effect from September, the "listing history" required for initial public offerings (Oops) of companies would be one month as against the current norm of six months.
"IPOs should have a listing history of at least one month, as of the re-balancing reference date, to be eligible for index inclusion," Asia Index said in a notice today.
"The changes will be implemented with the September 2017 re-balancing," it further said.
Asia Index, is a 50-50 partnership between S&P Dow Jones and BSE. The company is best known for calculating, publishing and maintaining a diverse family of Asian indices under the umbrella brand, S&P BSE Indices.
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