As filed with the Securities and Exchange Commission on December 28, 2012

File No. 333-31247

811-09170

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

POST EFFECTIVE AMENDMENT NO. 17

TO

Form S-6

FOR REGISTRATION UNDER THE SECURITIES ACT OF 1933 OF

SECURITIES OF UNIT INVESTMENT TRUSTS REGISTERED

ON FORM N-8B-2

A.	Exact name of Trust:
	SPDR DOW JONES INDUSTRIAL AVERAGE ETF TRUST
	(formerly known as DIAMONDS TRUST SERIES 1 prior to February 26, 2010)
B.	Name of Depositor:
	PDR SERVICES LLC
C.	Complete address of Depositor's principal executive office:
	PDR SERVICES LLC
	c/o NYSE Euronext
	11 Wall Street
	New York, New York 10005
D.	Name and complete address of agent for service:
	Marija Willen, Esq.
	PDR SERVICES LLC
	c/o NYSE Euronext
	11 Wall Street
	New York, New York 10005
	Copy to:
	Nora M. Jordan, Esq.
	Davis Polk & Wardwell LLP
	450 Lexington Avenue
	New York, New York 10017
	It is proposed that this filing will become effective:
	[X] on January 25, 2013 pursuant to Rule 485 paragraph (b).
	If appropriate, check the following box:
	[X] this post-effective amendment designates a new effective date for a previously filed post-effective amendment.
E.	Title of securities being registered:
	An indefinite number of Units pursuant to Rule 24f-2 under the Investment Company Act of 1940.
F.	Approximate date of proposed public offering:
	AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THE REGISTRATION STATEMENT.
	oCheck box if it is proposed that this filing will become effective on [date] at [time] pursuant to Rule 487.

The contents of the registrant's Post-Effective Amendment No. 16 under the Securities Act of 1933, filed on October 31, 2012, are incorporated by reference herein.  This amendment is being filed pursuant to Rule 485(b)(1)(iii) under the Securities Act of 1933 for the sole purpose of delaying the effectiveness of the above-referenced amendment until January 25, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant, SPDR Dow Jones Industrial Average ETF Trust, certifies that it meets all the requirements for the effectiveness of this Registration Statement pursuant to Rule 485(b)(1)(iii) under the Securities Act of 1933, as amended, and has duly caused this amendment to the Registration Statement to be signed on its behalf by the undersigned thereunto duly authorized, in the City of New York, and State of New York, on the 28th day of December, 2012.

SPDR DOW JONES INDUSTRIAL AVERAGE ETF TRUST
(Registrant)
By:	PDR Services LLC
By:	/s/ Joe Mecane
	Name: Joe Mecane
	Title: President

Pursuant to the requirements of the Securities Act of 1933, this amendment to the Registration Statement has been signed below on behalf of PDR Services LLC, the Depositor, by the following persons in the capacities and on the date indicated.

PDR SERVICES LLC

Name	Title/Office	Date
/s/ Joe Mecane	President of PDR Services LLC*	December 28, 2012
Joe Mecane
/s/ Laura Morrison	Senior Vice President of PDR Services LLC	December 28, 2012
Laura Morrison

____________

* The President of PDR Services LLC also undertakes all the duties and responsibilities of, and performs all functions of, the principal financial officer of PDR Services LLC.