485BXT 1 bxtfinal.htm INDEX FUNDS BXT bxtfinal.htm - Generated by SEC Publisher for SEC Filing
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
Form N-1A
 
REGISTRATION STATEMENT (NO. 2-56846) UNDER  
THE SECURITIES ACT OF 1933 [X]
PRE-EFFECTIVE AMENDMENT NO. [ ]
POST-EFFECTIVE AMENDMENT NO. 152 [X]
and
 
REGISTRATION STATEMENT (NO. 811-2652) UNDER THE INVESTMENT COMPANY ACT
OF 1940    
AMENDMENT NO. 153 [X]
 
 
VANGUARD INDEX FUNDS
(Exact Name of Registrant as Specified in Declaration of Trust)
 
P.O. Box 2600, Valley Forge, PA 19482
(Address of Principal Executive Office)
 
Registrant’s Telephone Number (610) 669-1000
 
Anne E. Robinson, Esquire
P.O. Box 876
Valley Forge, PA 19482
 
Approximate Date of Proposed Public Offering:  
It is proposed that this filing will become effective (check appropriate box)  
[ ] immediately upon filing pursuant to paragraph (b)  
[x] on May 10, 2017, pursuant to paragraph (b)  
[ ] 60 days after filing pursuant to paragraph (a)(1)  
[ ] on (date) pursuant to paragraph (a)(1)  
[ ] 75 days after filing pursuant to paragraph (a)(2)  
[ ] on (date) pursuant to paragraph (a)(2) of rule 485  
If appropriate, check the following box:  
[x] This post-effective amendment designates a new effective date for a
  previously filed post-effective amendment.  

 


Explanatory Note 
 
This Post Effective Amendment No. 152 under the Securities Act of 1933, as amended (the “Securities 
Act”) (Amendment No. 153 under the Investment Company Act of 1940, as amended (the “1940 Act”)) 
to the registration statement on Form N 1A (the “Registration Statement”) of Vanguard Index Funds 
(the “Trust”) is being filed pursuant to paragraph (b)(1)(iii) of Rule 485 under the Securities Act solely for 
the purpose of delaying, until May 10, 2017, the pending effective date of the Trust’s 150th Post
Effective Amendment. By way of further background: 
   
· Post Effective Amendment No. 151 was filed under Rule 485(b)(1)(iii) on March 10,2017, for the 
  sole purpose of extending to April 11, 2017, the then pending effective date of Post Effective 
  Amendment No. 150.  
· Post Effective Amendment 150 was filed under Rule 485(a)(1) on January 11, 2017, for the 
  purpose of adding the expense ratios for the Institutional Shares and Institutional Plus Shares of 
  Vanguard 500 Index Fund.  Post Effective Amendment 150 originally requested that the 
  Amendment become effective on March 13, 2017. 
· Post Effective Amendment No. 149 was filed under Rule 485(a)(1) on December 23,2016, for the 
  purposes of (1) adding Institutional Shares and Institutional Plus Shares of Vanguard 500 Index 
  Fund, a series of the Trust, and (2) effecting a number of non material editorial changes.  
 
   
This Post Effective Amendment No. 152 incorporates by reference the information contained in Parts A, 
B, and C of Post Effective Amendment No. 150 to the Registrant’s Registration Statement. 

 


SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant hereby certifies that it meets all requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the Town of Valley Forge and the Commonwealth of Pennsylvania, on the 10th day of April, 2017.

VANGUARD INDEX FUNDS
BY:___________/s/ F. William McNabb III*_________

F. William McNabb III
Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date

indicated:    
Signature Title Date
/S/ F. WILLIAM MCNABB III* Chairman and Chief Executive April 10, 2017
Officer
F. William McNabb III    
/S/ EMERSON U. FULLWOOD* Trustee April 10, 2017
Emerson U. Fullwood    
/S/ RAJIV L. GUPTA* Trustee April 10, 2017
RAJIV L. GUPTA    
/S/ AMY GUTMANN* Trustee April 10, 2017
Amy Gutmann    
/S/ JOANN HEFFERNAN HEISEN* Trustee April 10, 2017
JoAnn Heffernan Heisen    
/S/ F. JOSEPH LOUGHREY* Trustee April 10, 2017
F. Joseph Loughrey    
/S/ MARK LOUGHRIDGE* Trustee April 10, 2017
Mark Loughridge    
/S/ SCOTT C. MALPASS* Trustee April 10, 2017
Scott C. Malpass    
/S/ ANDRÉ F. PEROLD* Trustee April 10, 2017
André F. Perold    
/S/ PETER F. VOLANAKIS* Trustee April 10, 2017
Peter F. Volanakis    
/S/ THOMAS J. HIGGINS* Chief Financial Officer April 10, 2017
Thomas J. Higgins    
*By: /s/ Anne E. Robinson    

 

Anne E. Robinson, pursuant to a Power of Attorney filed on October 4, 2016, see File Number 33-32548, Incorporated by Reference.