<SEC-DOCUMENT>0001209286-15-000310-index.html : 20150529
<SEC-HEADER>0001209286-15-000310.hdr.sgml : 20150529
<ACCEPTANCE-DATETIME>20150529115204
ACCESSION NUMBER:		0001209286-15-000310
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		21
CONFORMED PERIOD OF REPORT:	20150331
FILED AS OF DATE:		20150529
DATE AS OF CHANGE:		20150529
EFFECTIVENESS DATE:		20150529

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)
		CENTRAL INDEX KEY:			0000810902
		IRS NUMBER:				136891420
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05032
		FILM NUMBER:		15898037

	BUSINESS ADDRESS:	
		STREET 1:		767 FIFTH AVE
		STREET 2:		49TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153
		BUSINESS PHONE:		2125832000

	MAIL ADDRESS:	
		STREET 1:		767 FIFTH AVE
		STREET 2:		49TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BARON ASSET FUND
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000000582
<SERIES-NAME>BARON ASSET FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000001635
<CLASS-CONTRACT-NAME>BARON ASSET FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BARAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000077818
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BARIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000000583
<SERIES-NAME>BARON GROWTH FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000001636
<CLASS-CONTRACT-NAME>BARON GROWTH FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BGRFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000077819
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BGRIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000000584
<SERIES-NAME>BARON SMALL CAP FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000001637
<CLASS-CONTRACT-NAME>BARON SMALL CAP FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BSCFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000077820
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BSFIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000000585
<SERIES-NAME>BARON OPPORTUNITY FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000001638
<CLASS-CONTRACT-NAME>BARON OPPORTUNITY FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BIOPX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000077821
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BIOIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000000586
<SERIES-NAME>BARON FIFTH AVENUE GROWTH FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000001639
<CLASS-CONTRACT-NAME>BARON FIFTH AVENUE GROWTH FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BFTHX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000077822
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BFTIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000810902
<SERIES-ID>S000042178
<SERIES-NAME>BARON DISCOVERY FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000130959
<CLASS-CONTRACT-NAME>BARON DISCOVERY FUND
<CLASS-CONTRACT-TICKER-SYMBOL>BDFFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000130960
<CLASS-CONTRACT-NAME>Institutional Shares
<CLASS-CONTRACT-TICKER-SYMBOL>BDFIX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>e105224.htm
<TEXT>
Document 1 - file: e105224.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>e105224_ex302.htm
<TEXT>
Document 2 - file: e105224_ex302.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906 CERT
<SEQUENCE>3
<FILENAME>e105224_ex906.htm
<TEXT>
Document 3 - file: e105224_ex906.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>last.jpg
<TEXT>
Document 4 - file: last.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>linda1.jpg
<TEXT>
Document 5 - file: linda1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>logo_page1.jpg
<TEXT>
Document 6 - file: logo_page1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>logo_wo.jpg
<TEXT>
Document 7 - file: logo_wo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>page2.jpg
<TEXT>
Document 8 - file: page2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>page3.jpg
<TEXT>
Document 9 - file: page3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>page4.jpg
<TEXT>
Document 10 - file: page4.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>page5.jpg
<TEXT>
Document 11 - file: page5.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>page6.jpg
<TEXT>
Document 12 - file: page6.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>page7.jpg
<TEXT>
Document 13 - file: page7.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>page8.jpg
<TEXT>
Document 14 - file: page8.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>page9.jpg
<TEXT>
Document 15 - file: page9.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>page10.jpg
<TEXT>
Document 16 - file: page10.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>page11.jpg
<TEXT>
Document 17 - file: page11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>page12.jpg
<TEXT>
Document 18 - file: page12.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>page13.jpg
<TEXT>
Document 19 - file: page13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>peggy1.jpg
<TEXT>
Document 20 - file: peggy1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>ron1.jpg
<TEXT>
Document 21 - file: ron1.jpg

</DOCUMENT>
</SEC-DOCUMENT>