WisdomTree Trust has registered with the SEC a new exchange-traded fund that seeks to give investors long-term returns above the rate of inflation.

To do so, the WisdomTree Real Return Fund (NYSEArca: RRF) will invest in inflation-linked securities such as U.S. Treasury Inflation Protected Securities (TIPS), bonds and commodities instruments.

RRF will be the newest member in an expanding group of ETFs that seeks to capitalize on investors' rising fears of inflation.

Though RRF’s basket will comprise maturities of any length, the fund’s primary goal is for its portfolio to have an average effective duration of two to 10 years. As a general rule of thumb, the longer the duration of the securities, the more susceptible the fund is to interest rate fluctuations and volatility.

RRF will also seek commodities exposure in sectors such as energy, precious metals and agriculture.

RRF will compete with a recently launched newcomer: IndexIQ’s IQ CPI Inflation Hedged ETF (NYSEArca: CPI). Similarly to RRF, CPI also invests in a combination of bonds of various maturities as well as commodities instruments to provide a return above the rolling 12-month Consumer Price Index. RRF is narrowly cheaper than CPI, with annual expenses pegged at 0.60 percent vs. CPI’s 0.65 percent.

But the two are not alone in the trend to capitalize on inflation fears. Pimco recently launched the world’s first short-term TIPS ETF, the Pimco 1-5 Year U.S. TIPS Index ETF (NYSEArca: STPZ). Short-term TIPS are said to have a higher correlation to inflation than broad-based TIPS funds. Since its launch, STPZ has gathered $72.1 million in assets.

WisdomTree Asset Management is RRF’s adviser, and Mellon Capital Management Corp. its subadviser.

You can find RRF's prospectus here.