Over the past few years, investors have seen the introduction of ETFs targeting increasingly specific niches. Much of this growth has come in the commodity ETF arena, with many new funds investing in futures contracts in order to provide investors exposure to a specific resource or broad basket. Institutions and individual investors alike have embraced these products as a way to obtain exposure to an otherwise hard-to-access asset class that can provide valuable diversification benefits. These products have helped to fuel an ETF growth spurt while also significantly expanding the size of the investable universe. The most popular exchange-traded commodity products tend to be either precious metals funds or ETFs offering exposure to a broader basket of resources. But interest in single-commodity funds has been on the rise, with investors finding uses for everything crop copper to sugar in their portfolios. Some investors have embraced commodity exposure as a way to [...] Click here to read the original article on ETFdb.com. Related Stories: First The CORN ETF, Now Five More Funds Inside The Corn ETF (CORN) Corn ETF (CORN) Debuts