Vanguard Bond Funds

Supplement to the Prospectus for Investor Shares and Admiral^TM

Shares Dated February 10, 2012

Prospectus Text Changes

The first paragraph under the heading “Share Class Overview” in the More on the Funds section is replaced with the following:

This prospectus offers the Funds’ Investor Shares and Admiral Shares. A separate prospectus offers Institutional Shares of Vanguard Short-Term Investment-Grade Fund. Institutional Shares are generally for investors who invest a minimum of $5 million.

© 2012 The Vanguard Group, Inc. All rights reserved.
Vanguard Marketing Corporation, Distributor.	PS 28 052012