Vanguard Short-Term Investment-Grade Fund Summary Prospectus

Annual Total Returns — Vanguard Short-Term Investment-Grade Fund Investor Shares. 1. 1 The year-to-date return as of the most recent calendar quarter, which ended on March 31, 2019, was 2.15%. Average Annual Total Returns for Periods Ended December 31, 2018 1 Year 5 Years 10 Years Vanguard Short-Term Investmen t-Grade Fund Investor Shares ................
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