Vanguard 500 Index Fund 

Vanguard Balanced Index Fund 

Vanguard Emerging Markets Stock Index Fund 

Vanguard European Stock Index Fund 

Vanguard Extended Market Index Fund 

Vanguard Growth Index Fund 

Vanguard Intermediate-Term Bond Index Fund 

Vanguard Large-Cap Index Fund 

Vanguard Mid-Cap Index Fund 

Vanguard Pacific Stock Index Fund 

Vanguard REIT Index Fund 

Vanguard Short-Term Bond Index Fund 

Vanguard Small-Cap Index Fund 

Vanguard Total Bond Market Index Fund 

Vanguard Total International Stock Index Fund 

Vanguard Total Stock Market Index Fund 

Vanguard Value Index Fund 

Supplement to the Prospectuses and Summary Prospectuses for Signal^® Shares for Participants

Effective October 16, 2013, Signal Shares are generally closed to new investors. Signal Shares remain open to existing investors and to certain new institutional and financial intermediary investors. It is anticipated that all outstanding Signal Shares will be automatically converted to Admiral^TM Shares in October 2014, at which time Signal Shares will no longer be available.

© 2013 The Vanguard Group, Inc. All rights reserved.
Vanguard Marketing Corporation, Distributor.

PSI SIG 102013