"Commodity ETFs picked up more assets than any other asset class," says Cinthia Murphy. When was the last time that this occurred, and what does this rare occurrence mean for the markets? Murphy examines the GLD ETF gaining momentum as it is often-times seen as an inflation hedge. Other gold ETFs include iShares Gold Trust (IAU), SPDR Gold Minishares Trust (GLDM), and USCF Gold Strategy Plus Income Fund (GLDX). Additionally, she discusses the only wheat ETF - WEAT.