<SEC-DOCUMENT>0001445546-16-007867-index.html : 20160404
<SEC-HEADER>0001445546-16-007867.hdr.sgml : 20160404
<ACCEPTANCE-DATETIME>20160404170948
ACCESSION NUMBER:		0001445546-16-007867
CONFORMED SUBMISSION TYPE:	485BXT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160404
DATE AS OF CHANGE:		20160404

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:		485BXT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-140895
		FILM NUMBER:		161551675

	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:		485BXT
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22019
		FILM NUMBER:		161551676

	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>485BXT
<SEQUENCE>1
<FILENAME>adex_style485bxt.txt
<DESCRIPTION>POST-EFFECTIVE AMENDMENT
<TEXT>
Document 1 - file: adex_style485bxt.txt

</DOCUMENT>
</SEC-DOCUMENT>