# EDGAR Filing Document

**Accession Number:** 0000794105
**File Stem:** 0001683863-23-000550
**Filing Date:** 2023-1
**Character Count:** 2981
**Document Hash:** be178693af5f79dc967c0ee43e1c3c33
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683863-23-000550.hdr.sgml**: 20230131

**ACCESSION NUMBER**: 0001683863-23-000550

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230131

**DATE AS OF CHANGE**: 20230130

**EFFECTIVENESS DATE**: 20230131

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VANGUARD BOND INDEX FUNDS
- **CENTRAL INDEX KEY:** 0000794105
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-06001
- **FILM NUMBER:** 23569350

**BUSINESS ADDRESS:**
- **STREET 1:** PO BOX 2600
- **STREET 2:** V26
- **CITY:** VALLEY FORGE
- **STATE:** PA
- **ZIP:** 19482
- **BUSINESS PHONE:** 6106691000

**MAIL ADDRESS:**
- **STREET 1:** P.O. BOX 2600 V26
- **CITY:** VALLEY FORGE
- **STATE:** PA
- **ZIP:** 19482

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD BOND INDEX FUND INC
- **DATE OF NAME CHANGE:** 19940111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD BOND MARKET FUND INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD INDEX BOND FUND
- **DATE OF NAME CHANGE:** 19870105

## Series and Classes Contracts Data

### Vanguard Ultra-Short Bond ETF (Series ID: S000071399)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| ETF Shares | VUSB          | C000226472 |

---

## Series and Classes Contracts Data

### Vanguard Ultra-Short Bond ETF (Series ID: S000071399)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000226472 | ETF Shares   | VUSB            |

![](vanguard.jpg)

Vanguard Ultra-Short Bond ETF

**Supplement Dated January 31, 2023, to the Prospectus and Summary Prospectus Dated April 29, 2022**

**Important Changes to Vanguard Ultra-Short Bond ETF (the Fund)**

Effective immediately, Samuel C. Martinez will no longer serve as portfolio manager of the Fund.

Accordingly, all references to Samuel C. Martinez are hereby deleted in their entirety.

The Fund's investment objective, strategies, and policies remain unchanged.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© 2023 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.PS 931A 012023

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![](vanguard.jpg)

**Vanguard Bond Index Funds** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

**Supplement Dated January 31, 2023, to the Statement of Additional Information Dated April 29, 2022**

**Important Changes to Vanguard Ultra-Short Bond ETF (the Fund)**

Effective immediately, Samuel C. Martinez will no longer serve as portfolio manager of the Fund.

Accordingly, all references to Samuel C. Martinez are hereby deleted in their entirety.

The Fund's investment objective, strategies, and policies remain unchanged.© 2023 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.

**SAI 084A 012023**

------