Investors have been piling into ETFs indexed to China and Brazil hoping to profit from the developing countries’ higher economic growth rates and lower debt levels.

For example, iShares FTSE China 25 (NYSEArca: FXI) and iShares MSCI Brazil (NYSEArca: EWZ) are both among the top 10 best-selling ETFs since the end of September.

FXI has netted $1.1 billion while investors have added $579 million to EWZ, according to IndexUniverse ETF flow data.

Brazil and China are among the so-called BRIC nations along with emerging markets Russia and India. Last month, reports surfaced that the BRICS were considering launching a multilateral bank.

In October, China-focused funds were the most popular in the emerging markets ETF category with inflows of $2.8 billion, according to BlackRock global ETF flow data. Brazil ETFs attracted $700 million.

“Central banks in China and Brazil have aggressively lowered interest rates in 2012,” BlackRock said in a note.

EWZ has been a favorite among hedge fund manager for exposure to Brazil, the world’s sixth largest economy and home to the upcoming 2014 World Cup and 2016 Summer Olympics. [Brazil ETF Still Raking in Cash]

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