<SEC-DOCUMENT>0001193125-17-146443.txt : 20170428
<SEC-HEADER>0001193125-17-146443.hdr.sgml : 20170428
<ACCEPTANCE-DATETIME>20170428120002
ACCESSION NUMBER:		0001193125-17-146443
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170428
DATE AS OF CHANGE:		20170428
EFFECTIVENESS DATE:		20170428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SPDR S&P MIDCAP 400 ETF TRUST
		CENTRAL INDEX KEY:			0000936958
		IRS NUMBER:				137077797
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-89088
		FILM NUMBER:		17793077

	BUSINESS ADDRESS:	
		STREET 1:		PDR SERVICES LLC C/O NYSE EURONEXT
		STREET 2:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
		BUSINESS PHONE:		212-656-4440

	MAIL ADDRESS:	
		STREET 1:		PDR SERVICES LLC C/O NYSE EURONEXT
		STREET 2:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MIDCAP SPDR TRUST SERIES 1
		DATE OF NAME CHANGE:	19950207
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>d386132d497.htm
<DESCRIPTION>MDY 497
<TEXT>
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<TITLE>MDY 497</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SPDR<SUP STYLE="font-size:85%; vertical-align:top">&reg;</SUP> S&amp;P MIDCAP 400<SUP
STYLE="font-size:85%; vertical-align:top">&reg;</SUP> ETF TRUST </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(the &#147;Trust&#148;) </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(A Unit Investment Trust) </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center">Supplement dated April&nbsp;28, 2017 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center">to the Trust&#146;s Prospectus dated January&nbsp;20, 2017 </P>
<P STYLE="margin-top:36pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman"><B><I>Effective May&nbsp;1, 2017 (the &#147;Effective Date&#148;), State Street Global Markets, LLC, the marketing agent to the Trust, will be renamed State
Street Global Advisors Funds Distributors, LLC. </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman">Accordingly, as of the Effective Date, all references in the Prospectus to State Street Global
Markets, LLC and SSGM are hereby deleted and replaced with State Street Global Advisors Funds Distributors, LLC and SSGA FD, respectively. </P>
<P STYLE="margin-top:72pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE </B></P>
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</TEXT>
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</SEC-DOCUMENT>
