<SEC-DOCUMENT>0001379491-18-001663-index.html : 20180426
<SEC-HEADER>0001379491-18-001663.hdr.sgml : 20180426
<ACCEPTANCE-DATETIME>20180426094146
ACCESSION NUMBER:		0001379491-18-001663
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		19
CONFORMED PERIOD OF REPORT:	20180228
FILED AS OF DATE:		20180426
DATE AS OF CHANGE:		20180426
EFFECTIVENESS DATE:		20180426

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIDELITY CONCORD STREET TRUST
		CENTRAL INDEX KEY:			0000819118
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0228

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05251
		FILM NUMBER:		18776615

	BUSINESS ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-563-7000

	MAIL ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIDELITY INSTITUTIONAL TRUST
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000819118
<SERIES-ID>S000006021
<SERIES-NAME>Fidelity Extended Market Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016543
<CLASS-CONTRACT-NAME>Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSEVX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016544
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSEMX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103355
<CLASS-CONTRACT-NAME>Institutional Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSMAX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000819118
<SERIES-ID>S000006023
<SERIES-NAME>Fidelity International Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016547
<CLASS-CONTRACT-NAME>Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSIVX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016548
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSIIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103356
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSPNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103357
<CLASS-CONTRACT-NAME>Institutional Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSPSX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000819118
<SERIES-ID>S000006026
<SERIES-NAME>Fidelity Total Market Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016553
<CLASS-CONTRACT-NAME>Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSTVX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016554
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSTMX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000079288
<CLASS-CONTRACT-NAME>Class F
<CLASS-CONTRACT-TICKER-SYMBOL>FFSMX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103358
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSKTX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103359
<CLASS-CONTRACT-NAME>Institutional Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FSKAX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000819118
<SERIES-ID>S000006027
<SERIES-NAME>Fidelity 500 Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016555
<CLASS-CONTRACT-NAME>Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FUSVX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000016556
<CLASS-CONTRACT-NAME>Investor Class
<CLASS-CONTRACT-TICKER-SYMBOL>FUSEX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000100044
<CLASS-CONTRACT-NAME>Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>FXSIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000100045
<CLASS-CONTRACT-NAME>Institutional Premium Class
<CLASS-CONTRACT-TICKER-SYMBOL>FXAIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000819118
<SERIES-ID>S000056363
<SERIES-NAME>Fidelity Flex 500 Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000177590
<CLASS-CONTRACT-NAME>Fidelity Flex 500 Index Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FDFIX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>filing788.htm
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: filing788.htm

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<DOCUMENT>
<TYPE>EX-99.CODE ETH
<SEQUENCE>2
<FILENAME>code.htm
<DESCRIPTION>CODE.HTM
<TEXT>
Document 2 - file: code.htm

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<SEQUENCE>3
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Document 3 - file: ex99.htm

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<SEQUENCE>4
<FILENAME>ex906.htm
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<TEXT>
Document 4 - file: ex906.htm

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Document 5 - file: fid_cover.gif

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Document 6 - file: img361625439_740.jpg

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Document 7 - file: fi_logo.jpg

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Document 8 - file: img364918654_740.jpg

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Document 9 - file: img361622807_740.jpg

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Document 10 - file: img361623258_740.jpg

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Document 11 - file: img366539564_740.jpg

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<SEQUENCE>12
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<TEXT>
Document 12 - file: img371977839.jpg

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<TEXT>
Document 13 - file: img364918764_740.jpg

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<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>img366546839_740.jpg
<TEXT>
Document 14 - file: img366546839_740.jpg

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<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>img364918857_740.jpg
<TEXT>
Document 15 - file: img364918857_740.jpg

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<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>img371974093.jpg
<TEXT>
Document 16 - file: img371974093.jpg

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<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>img361625099_740.jpg
<TEXT>
Document 17 - file: img361625099_740.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>img361628283_740.jpg
<TEXT>
Document 18 - file: img361628283_740.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>img370737900.jpg
<TEXT>
Document 19 - file: img370737900.jpg

</DOCUMENT>
</SEC-DOCUMENT>