<SEC-DOCUMENT>0001445546-16-006732-index.html : 20160629
<SEC-HEADER>0001445546-16-006732.hdr.sgml : 20160629

<ACCEPTANCE-DATETIME>20160203160839

<PRIVATE-TO-PUBLIC>

ACCESSION NUMBER:		0001445546-16-006732

CONFORMED SUBMISSION TYPE:	485APOS

PUBLIC DOCUMENT COUNT:		3

FILED AS OF DATE:		20160203

DATE AS OF CHANGE:		20160522


FILER:


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			FIRST TRUST EXCHANGE-TRADED ALPHADEX FUND

		CENTRAL INDEX KEY:			0001383496

		IRS NUMBER:				000000000

		STATE OF INCORPORATION:			MA



	FILING VALUES:

		FORM TYPE:		485APOS

		SEC ACT:		1933 Act

		SEC FILE NUMBER:	333-140895

		FILM NUMBER:		161384961



	BUSINESS ADDRESS:	

		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400

		CITY:			WHEATON

		STATE:			IL

		ZIP:			60187

		BUSINESS PHONE:		630-765-8000



	MAIL ADDRESS:	

		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400

		CITY:			WHEATON

		STATE:			IL

		ZIP:			60187




FILER:


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			FIRST TRUST EXCHANGE-TRADED ALPHADEX FUND

		CENTRAL INDEX KEY:			0001383496

		IRS NUMBER:				000000000

		STATE OF INCORPORATION:			MA



	FILING VALUES:

		FORM TYPE:		485APOS

		SEC ACT:		1940 Act

		SEC FILE NUMBER:	811-22019

		FILM NUMBER:		161384962



	BUSINESS ADDRESS:	

		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400

		CITY:			WHEATON

		STATE:			IL

		ZIP:			60187

		BUSINESS PHONE:		630-765-8000



	MAIL ADDRESS:	

		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400

		CITY:			WHEATON

		STATE:			IL

		ZIP:			60187



<SERIES-AND-CLASSES-CONTRACTS-DATA>

<EXISTING-SERIES-AND-CLASSES-CONTRACTS>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017337

<SERIES-NAME>First Trust Large Cap Core AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000047995

<CLASS-CONTRACT-NAME>First Trust Large Cap Core AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FEX

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017338

<SERIES-NAME>First Trust Mid Cap Core AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000047996

<CLASS-CONTRACT-NAME>First Trust Mid Cap Core AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FNX

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017339

<SERIES-NAME>First Trust Small Cap Core AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000047997

<CLASS-CONTRACT-NAME>First Trust Small Cap Core AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FYX

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017340

<SERIES-NAME>First Trust Large Cap Value AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000047998

<CLASS-CONTRACT-NAME>First Trust Large Cap Value Opportunities AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FTA

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017341

<SERIES-NAME>First Trust Large Cap Growth AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000047999

<CLASS-CONTRACT-NAME>First Trust Large Cap Growth AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FTC

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017342

<SERIES-NAME>First Trust Multi Cap Value AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000048000

<CLASS-CONTRACT-NAME>First Trust Multi Cap Value AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FAB

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000017343

<SERIES-NAME>First Trust Multi Cap Growth AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000048001

<CLASS-CONTRACT-NAME>First Trust Multi Cap Growth AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FAD

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000031804

<SERIES-NAME>First Trust Mid Cap Growth AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000099059

<CLASS-CONTRACT-NAME>First Trust Mid Cap Growth AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FNY

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000031805

<SERIES-NAME>First Trust Mid Cap Value AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000099060

<CLASS-CONTRACT-NAME>First Trust Mid Cap Value AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FNK

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000031806

<SERIES-NAME>First Trust Small Cap Growth AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000099061

<CLASS-CONTRACT-NAME>First Trust Small Cap Growth AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FYC

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000031807

<SERIES-NAME>First Trust Small Cap Value AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000099062

<CLASS-CONTRACT-NAME>First Trust Small Cap Value AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FYT

</CLASS-CONTRACT>

</SERIES>

<SERIES>

<OWNER-CIK>0001383496

<SERIES-ID>S000032963

<SERIES-NAME>First Trust Mega Cap AlphaDEX Fund

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000101702

<CLASS-CONTRACT-NAME>First Trust Mega Cap AlphaDEX Fund

<CLASS-CONTRACT-TICKER-SYMBOL>FMK

</CLASS-CONTRACT>

</SERIES>

</EXISTING-SERIES-AND-CLASSES-CONTRACTS>

</SERIES-AND-CLASSES-CONTRACTS-DATA>

</SEC-HEADER>

<DOCUMENT>
<TYPE>485APOS
<SEQUENCE>1
<FILENAME>adex_style485a.txt
<DESCRIPTION>POST-EFFECTIVE AMENDMENT
<TEXT>
Document 1 - file: adex_style485a.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.Q PWR ATTY
<SEQUENCE>2
<FILENAME>exhibit_q.txt
<DESCRIPTION>POWERS OF ATTORNEY
<TEXT>
Document 2 - file: exhibit_q.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>COVER
<SEQUENCE>3
<FILENAME>filename3.txt
<TEXT>
Document 3 - file: filename3.txt

</DOCUMENT>
</SEC-DOCUMENT>