Click to get this free report SPDR-SP 500 TR (SPY): ETF Research Reports ISHARS-TIPS BD (TIP): ETF Research Reports SPDR-GOLD TRUST (GLD): ETF Research Reports To read this article on Zacks.com click here. Further, a recent auction for TIPS saw its biggest demand in 2 years. The personal consumption expenditures price index-one of the Fed's preferred measures of inflation--was up by 1.6% in April from a year ago.