# EDGAR Filing Document

**Accession Number:** 0000036405
**File Stem:** 0001683863-23-000900
**Filing Date:** 2023-2
**Character Count:** 13167
**Document Hash:** 354eb7aef5c2577ccde0d551b138e440
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683863-23-000900.hdr.sgml**: 20230217

**ACCESSION NUMBER**: 0001683863-23-000900

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230217

**DATE AS OF CHANGE**: 20230217

**EFFECTIVENESS DATE**: 20230217

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VANGUARD INDEX FUNDS
- **CENTRAL INDEX KEY:** 0000036405
- **IRS NUMBER:** 231999755
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-56846
- **FILM NUMBER:** 23640468

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

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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD INDEX FUNDS/
- **DATE OF NAME CHANGE:** 20011121

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD INDEX TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIRST INDEX INVESTMENT TRUST
- **DATE OF NAME CHANGE:** 19800904

## Series and Classes Contracts Data

### Vanguard Mid-Cap Index Fund (Series ID: S000002844)

---

|  |  |  |
|:---|:---|:---|
| Class Name                | Ticker Symbol | Class ID   |
| Investor Shares           | VIMSX         | C000007791 |
| Admiral Shares            | VIMAX         | C000007792 |
| Institutional Shares      | VMCIX         | C000007793 |
| ETF Shares                | VO            | C000007794 |
| Institutional Plus Shares | VMCPX         | C000096111 |

---

### Vanguard Total Stock Market Index Fund (Series ID: S000002848)

---

|  |  |  |
|:---|:---|:---|
| Class Name                  | Ticker Symbol | Class ID   |
| Investor Shares             | VTSMX         | C000007805 |
| Admiral Shares              | VTSAX         | C000007806 |
| Institutional Shares        | VITSX         | C000007807 |
| ETF Shares                  | VTI           | C000007808 |
| Institutional Plus Shares   | VSMPX         | C000155407 |
| Institutional Select Shares | VSTSX         | C000170276 |

---

### Vanguard Mid-Cap Growth Index Fund (Series ID: S000012756)

---

|  |  |  |
|:---|:---|:---|
| Class Name      | Ticker Symbol | Class ID   |
| Investor Shares | VMGIX         | C000034427 |
| ETF Shares      | VOT           | C000034428 |
| Admiral Shares  | VMGMX         | C000105306 |

---

### Vanguard Mid-Cap Value Index Fund (Series ID: S000012757)

---

|  |  |  |
|:---|:---|:---|
| Class Name      | Ticker Symbol | Class ID   |
| Investor Shares | VMVIX         | C000034429 |
| ETF Shares      | VOE           | C000034430 |
| Admiral Shares  | VMVAX         | C000105307 |

---

## Series and Classes Contracts Data

### Vanguard Mid-Cap Index Fund (Series ID: S000002844)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000007791 | Investor Shares           | VIMSX           |
| C000007792 | Admiral Shares            | VIMAX           |
| C000007793 | Institutional Shares      | VMCIX           |
| C000007794 | ETF Shares                | VO              |
| C000096111 | Institutional Plus Shares | VMCPX           |

### Vanguard Total Stock Market Index Fund (Series ID: S000002848)

| Class ID   | Class Name                  | Ticker Symbol   |
|:---|:---|:---|
| C000007805 | Investor Shares             | VTSMX           |
| C000007806 | Admiral Shares              | VTSAX           |
| C000007807 | Institutional Shares        | VITSX           |
| C000007808 | ETF Shares                  | VTI             |
| C000155407 | Institutional Plus Shares   | VSMPX           |
| C000170276 | Institutional Select Shares | VSTSX           |

### Vanguard Mid-Cap Growth Index Fund (Series ID: S000012756)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000034427 | Investor Shares | VMGIX           |
| C000034428 | ETF Shares      | VOT             |
| C000105306 | Admiral Shares  | VMGMX           |

### Vanguard Mid-Cap Value Index Fund (Series ID: S000012757)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000034429 | Investor Shares | VMVIX           |
| C000034430 | ETF Shares      | VOE             |
| C000105307 | Admiral Shares  | VMVAX           |

![](vanguard.jpg)

Vanguard Total Stock Market Index Fund

Vanguard Mid-Cap Index Fund

Vanguard Mid-Cap Value Index Fund

Vanguard Mid-Cap Growth Fund

**Supplement Dated February 17, 2023, to the Prospectuses and Summary Prospectuses Dated April 29, 2022**

**Important Changes to Vanguard Total Stock Market Index Fund, Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Value Index Fund and Vanguard Mid-Cap Growth Index Fund (the Funds)**

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

Effective immediately Michelle Louie has been added as a co-portfolio manager of Vanguard Total Stock Market Index Fund.

Effective immediately Aurélie Denis has been added as a co-portfolio manager of Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Value Index Fund and Vanguard Mid-Cap Growth Index Fund.

The Funds' investment objectives, strategies, and policies remain unchanged.

**Prospectus and Summary Prospectus Text Changes**

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

The following is added under the heading "Investment Advisor" in **the Fund Summary** section for each fund:

**For Vanguard Total Stock Market Index Fund**

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

**Michelle Louie**, CFA, Portfolio Manager at Vanguard. She has co-managed the Fund since February 2023.

------

**For Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Value Index Fund and Vanguard Mid-Cap Growth Index Fund**

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

**Aurélie Denis,** CFA, Portfolio Manager at Vanguard. She has co-managed the Fund since February 2023.

**Prospectus Text Changes**

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

The following is added under the heading "Investment Advisor" in the **More on the Funds** section:

**For Vanguard Total Stock Market Index Fund**

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

**Michelle Louie**, CFA, Portfolio Manager at Vanguard. She has been with Vanguard since 2010, has worked in investment management since 2011, has managed investment portfolios since 2016, and has co-managed the Fund since February 2023. Education: B.S., The American University; M.B.A., Georgia Institute of Technology.

**For Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Value Index Fund and Vanguard Mid-Cap Growth Index Fund**

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

**Aurélie Denis,** CFA, Portfolio Manager at Vanguard. She has been with Vanguard since 2016, has worked in investment management since 2017, has managed investment portfolios since 2023, and has co-managed the Fund since February 2023. Education: B.S., Pennsylvania State University.

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

Vanguard Marketing Corporation, Distributor.**PS 585A 022023**

*CFA*<sup>®</sup> is a registered trademark owned by CFA Institute.

------

![](vanguard.jpg)

**Vanguard Index Funds**

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

**Supplement Dated February 17, 2023, to the Statement of Additional Information Dated April 29, 2022**

**Important Changes to Vanguard Index Funds** 

**Vanguard Extended Market Index Fund**

Effective immediately, Michelle Louie has been added as a co-portfolio manager of Vanguard Extended Market Index Fund (the Fund). She replaces William A. Coleman, who had previously co-managed the Fund, and joins Donald M. Butler, who will continue to co-manage the Fund. All references to Mr. Coleman in the Statement of Additional Information are hereby deleted in their entirety.

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

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

**Vanguard Small-Cap Index Fund**

Effective immediately, Kenny Narzikul has been added as a co-portfolio manager of Vanguard Small-Cap Index Fund (the Fund). He replaces William A. Coleman, who had previously co-managed the Fund, and joins Gerard C. O'Reilly, who will continue to co-manage the Fund. All references to Mr. Coleman in the Statement of Additional Information are hereby deleted in their entirety.

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

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

**Vanguard Small-Cap Growth Index Fund and Vanguard Small-Cap Value Index Fund**

Effective immediately, Nick Birkett has been added as a co-portfolio manager of Vanguard Small-Cap Growth Index Fund and Vanguard Small-Cap Value Index Fund (the Funds). He replaces William A. Coleman, who had previously co-managed the Funds, and joins Gerard C. O'Reilly, who will continue to co-manage the Funds.

The Funds' investment objectives, strategies, and policies remain unchanged.

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

**Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Growth Index Fund and Vanguard Mid-Cap Value Index Fund**

Effective immediately, Aurélie Denis has been added as a co-portfolio manager of Vanguard Mid-Cap Index Fund, Vanguard Mid-Cap Growth Index Fund and Vanguard Mid-Cap Value Index Fund (the Funds). She joins Donald M. Butler and Awais Khan, who will continue to co-manage the Funds.

The Funds' investment objectives, strategies, and policies remain unchanged.

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

**Vanguard Total Stock Market Index Fund**

Effective immediately, Michelle Louie has been added as a co-portfolio manager of Vanguard Total Stock Market Index Fund (the Fund). She joins Gerard C. O'Reilly and Walter Nejman, who will continue to co-manage the Fund.

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

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

------

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

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

**Statement of Additional Information Text Changes**

In the **Investment Advisory and Other Services** section, the following text replaces the information on the table for William A. Coleman under the subheading "**1. Other Accounts Managed"** on page B-48:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Portfolio Manager** |  | **No. of** <br> **accounts**<br>| **Total assets** | **No. of accounts with**<br> **performance-based** <br> **fees**<br>| **Total assets in**<br> **accounts with**<br> **performance-based** <br> **fees**<br>|
| Nick Birkett<sup>1</sup> <br>| Registered investment companies<sup>2</sup> <br>| 10 <br>| $94B | 0 | $0 |
|  | Other pooled investment vehicles | &nbsp;&nbsp; 4 | $10B | 0 | $0 |
|  | Other accounts | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
| Aurélie Denis<sup>3</sup> <br>| Registered investment companies<sup>4</sup> <br>| &nbsp;&nbsp; 0 | $0 | 0 | $0 |
|  | Other pooled investment vehicles | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
|  | Other accounts | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
| Michelle Louie<sup>5</sup> <br>| Registered investment companies<sup>6</sup> <br>| 13 | $1.08T | 0 | $0 |
|  | Other pooled investment vehicles | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
|  | Other accounts | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
| Kenny Narzikul<sup>7</sup> <br>| Registered investment companies<sup>8</sup> <br>| &nbsp;&nbsp; 0 | $0 | 0 | $0 |
|  | Other pooled investment vehicles | &nbsp;&nbsp; 0 | $0 | 0 | $0 |
|  | Other accounts | &nbsp;&nbsp; 0 | $0 | 0 | $0 |

---

1 Mr. Birkett began co-managing the Funds he manages on February 17, 2023.

2 Information provided as of December 31, 2022.

3 Ms. Denis began co-managing the Funds she manages on February 17, 2023.

4 Information provided as of December 31, 2022.

5 Ms. Louie began co-managing the Funds she manages on February 17, 2023.

6 Information provided as of December 31, 2022.

7 Mr. Narzikul began co-managing the Funds he manages on February 17, 2023.

8 Information provided as of December 31, 2022.

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

Within the same section, the following text is added under the subheading **"4. Ownership of Securities"** on page B-49:

As of December 31, 2022, Mr. Birkett owned no shares of Vanguard Small-Cap Growth Index Fund or Vanguard Small-Cap Value Index Fund.

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

As of December 31, 2022, Ms. Denis owned shares of Vanguard Mid-Cap Index Fund within the $1-$10,000 range.

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

As of December 31, 2022, Ms. Louie owned shares of Vanguard Extended Market Index Fund within the $50,000-$100,000 range, and shares of Vanguard Total Stock Market Index Fund valued at over $1,000,000.

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

As of December 31, 2022, Mr. Narzikul owned no shares of Vanguard Small-Cap Index Fund.© 2023 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.

**SAI 040A 022023**

------