Vanguard Canadian Ultra-Short Government Bond Index ETF seeks to track, to the extent reasonably possible and before fees and expenses, the performance of a Canadian treasury bills and bonds index with an ultra-short term dollar-weighted average maturity. Currently, Vanguard Canadian Ultra-Short Government Bond Index ETF seeks to track the Bloomberg Canadian Short Treasury 1-12M Float Adjusted Index (or any successor thereto). It invests primarily in public, investment-grade government fixed income securities with maturities of less than 365 days issued in Canada.