Investors have been directing cash to new exchange traded funds that invest in commodities and emerging markets bonds to hedge against a weaker U.S. dollar, according to a report.

These ETFs can offer investors a safe haven from a depreciating greenback. Investors are worried economic weakness could trigger more fiscal stimulus from the Federal Reserve and further debase the dollar.

The most popular ETFs invest in emerging market bonds, commodities and rare earths, a new niche sector, reports Austen Sherman for MarketWatch. The $900 million WisdomTree Emerging Markets Local Debt Fund (NYSEArca: ELD) ranked No. 3 out of 300 ETFs launched over the past year. [Playing a Weaker Dollar Without Currency ETFs]

Likewise, No. 4 was the WisdomTree Asia Local Debt Fund (NYSEArca: ALD) with $478 million in assets, according to the report. [New ETFs For Specific Areas of the Market]

“When you have an environment where people are worried about growth at home, and see good stories in emerging markets, they are going to try and get access to them,”said Martin Kremenstein, CIO of Deutsche Bank’s db-X platform, in the report.

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