Commodity ETFs to consider include the SPDR Gold Trust (NYSEArca:GLD), which tracks the price of gold bullion. Speculation that the Federal Reserve will announce a new round of quantitative easing has increased over the last two weeks and investors are convinced enough that it will happen to put their money on the line. Big money has been flowing into Treasury inflation-protected securities (TIPs) as investors anticipate the next round of so-called QE will lead to higher inflation in the years ahead.