On Thursday, the Vanguard Intermediate-Term Treasury Index Fund ETF Shares (VGIT) was flat and the Vanguard Long-Term Treasury Index Fund ETF Shares (VGLT) rose 0.2%. U.S. Treasuries and related exchange traded funds were slightly higher Thursday ahead of the Federal Reserve's annual Jackson Hole summit as investors waited on a potential outline on the central bank's bond tapering outlook. St. Louis Fed President James Bullard has already stated that he wants to see the central bank start cutting back on its asset purchases to help obviate inflationary pressures.