The MSCI EM 50 index contains stocks from Brazil, China, India, Mexico, Russia, South Africa, South Korea and Taiwan as of October 4, MSCI said.
The larger MSCI emerging equities index, benchmarked by many emerging market fund managers globally, contains stocks from more than 20 countries including smaller markets like Egypt, the Czech Republic, Poland and Hungary.
“We have seen significant demand from clients around the world for a tradeable version of our market-leading MSCI Emerging Markets Index - especially from those who face various obstacles in replicating broader emerging markets indices,” said MSCI managing director Theodore Niggli.
The MSCI emerging index has fallen 28% this year on global risk aversion, but some larger stock markets have outperformed.
Chinese stocks have fallen 16%, Indian stocks are down 23% and Korean stocks have dropped 19%.
Some investors are also currently more comfortable with positions in more liquid stocks, as liquidity has been drying up on global growth worries.
The new EM 50 index applies eligibility screens to exclude some of the smallest emerging markets and uses depositary receipts for certain markets less accessible to foreign investors, MSCI said.