<SEC-DOCUMENT>0000858581-19-000080-index.html : 20190429
<SEC-HEADER>0000858581-19-000080.hdr.sgml : 20190429
<ACCEPTANCE-DATETIME>20190429065832
ACCESSION NUMBER:		0000858581-19-000080
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		42
FILED AS OF DATE:		20190429
DATE AS OF CHANGE:		20190429
EFFECTIVENESS DATE:		20190501

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			T. Rowe Price Index Trust, Inc.
		CENTRAL INDEX KEY:			0000858581
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-32859
		FILM NUMBER:		19773664

	BUSINESS ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		410-345-2000

	MAIL ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INDEX TRUST INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INSTITUTIONAL EQUITY FUNDS INC
		DATE OF NAME CHANGE:	19900227

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			T. Rowe Price Index Trust, Inc.
		CENTRAL INDEX KEY:			0000858581
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05986
		FILM NUMBER:		19773665

	BUSINESS ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		410-345-2000

	MAIL ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INDEX TRUST INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INSTITUTIONAL EQUITY FUNDS INC
		DATE OF NAME CHANGE:	19900227
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000858581
<SERIES-ID>S000002089
<SERIES-NAME>T. Rowe Price Equity Index 500 Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000005457
<CLASS-CONTRACT-NAME>T. Rowe Price Equity Index 500 Fund
<CLASS-CONTRACT-TICKER-SYMBOL>PREIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000159677
<CLASS-CONTRACT-NAME>T. Rowe Price Equity Index 500 Fund-I Class
<CLASS-CONTRACT-TICKER-SYMBOL>PRUIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000858581
<SERIES-ID>S000002090
<SERIES-NAME>T. Rowe Price Extended Equity Market Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000005458
<CLASS-CONTRACT-NAME>T. Rowe Price Extended Equity Market Index Fund
<CLASS-CONTRACT-TICKER-SYMBOL>PEXMX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000858581
<SERIES-ID>S000002091
<SERIES-NAME>T. Rowe Price Total Equity Market Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000005459
<CLASS-CONTRACT-NAME>T. Rowe Price Total Equity Market Index Fund
<CLASS-CONTRACT-TICKER-SYMBOL>POMIX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000858581
<SERIES-ID>S000051326
<SERIES-NAME>T. Rowe Price Mid-Cap Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000161835
<CLASS-CONTRACT-NAME>T. Rowe Price Mid-Cap Index Fund
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000161836
<CLASS-CONTRACT-NAME>T. Rowe Price Mid-Cap Index Fund-I Class
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000858581
<SERIES-ID>S000051327
<SERIES-NAME>T. Rowe Price Small-Cap Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000161837
<CLASS-CONTRACT-NAME>T. Rowe Price Small-Cap Index Fund
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000161838
<CLASS-CONTRACT-NAME>T. Rowe Price Small-Cap Index Fund-I Class
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>ifc485b.htm
<TEXT>
Document 1 - file: ifc485b.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.B BYLAWS <SEQUENCE>2 <FILENAME>ifcbylaws-may1.htm <TEXT> Document 2 - file: ifcbylaws-may1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.G CUST AGREEMT <SEQUENCE>3 <FILENAME>custodianagreement-201256.htm <TEXT> Document 3 - file: custodianagreement-201256.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.H OTH MAT CONT <SEQUENCE>4 <FILENAME>c2019transferagencyagr-20193.htm <TEXT> Document 4 - file: c2019transferagencyagr-20193.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.H OTH MAT CONT <SEQUENCE>5 <FILENAME>retainedfaagmtr-fromaugtoaug.htm <TEXT> Document 5 - file: retainedfaagmtr-fromaugtoaug.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.H OTH MAT CONT <SEQUENCE>6 <FILENAME>bnymello-renewedevery10years.htm <TEXT> Document 6 - file: bnymello-renewedevery10years.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.G CUST AGREEMT <SEQUENCE>7 <FILENAME>fundacctsideletter201-201710.htm <TEXT> Document 7 - file: fundacctsideletter201-201710.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.H OTH MAT CONT <SEQUENCE>8 <FILENAME>c2019rpsagreement-20191.htm <TEXT> Document 8 - file: c2019rpsagreement-20191.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.J OTHER OPININ <SEQUENCE>9 <FILENAME>pwcconsent.htm <TEXT> Document 9 - file: pwcconsent.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.J OTHER OPININ <SEQUENCE>10 <FILENAME>ifc485bcertificati-050120128.htm <TEXT> Document 10 - file: ifc485bcertificati-050120128.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.J OTHER OPININ <SEQUENCE>11 <FILENAME>poamarch2019.htm <TEXT> Document 11 - file: poamarch2019.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.P CODE ETH <SEQUENCE>12 <FILENAME>codeofethics-allcycles1.htm <TEXT> Document 12 - file: codeofethics-allcycles1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>img_0dbd1eb845e54.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: img_0dbd1eb845e54.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>img_3a5c47f985424.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: img_3a5c47f985424.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>img_3cf165fc7d7e4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: img_3cf165fc7d7e4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>img_4c8401abf4804.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: img_4c8401abf4804.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>img_6ba5117319144.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: img_6ba5117319144.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>img_7e36a952d8494.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: img_7e36a952d8494.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>img_9bfc84c930a84.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: img_9bfc84c930a84.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>img_12a23a4234694.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 20 - file: img_12a23a4234694.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>img_82b69c69deef4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 21 - file: img_82b69c69deef4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>img_210db39c9c554.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 22 - file: img_210db39c9c554.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>img_0664cdfb615b4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 23 - file: img_0664cdfb615b4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>img_760d2c954c4f4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 24 - file: img_760d2c954c4f4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>img_836b384909134.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 25 - file: img_836b384909134.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>img_58524dedcbe74.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 26 - file: img_58524dedcbe74.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>img_a23ef96aa01d4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 27 - file: img_a23ef96aa01d4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>img_a71bdcea29574.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 28 - file: img_a71bdcea29574.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>img_a88b00867c104.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 29 - file: img_a88b00867c104.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>img_a93286aa84d24.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 30 - file: img_a93286aa84d24.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>img_ab45d120d1c04.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 31 - file: img_ab45d120d1c04.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>img_ad4060c7f8bc4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 32 - file: img_ad4060c7f8bc4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>img_adc8fb4fcb7a4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 33 - file: img_adc8fb4fcb7a4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>34 <FILENAME>img_afc276b8cdfb4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 34 - file: img_afc276b8cdfb4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>35 <FILENAME>img_b1e0877413734.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 35 - file: img_b1e0877413734.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>36 <FILENAME>img_b5475be586c24.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 36 - file: img_b5475be586c24.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>37 <FILENAME>img_bf69174c855e4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 37 - file: img_bf69174c855e4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>38 <FILENAME>img_c6e2797821f44.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 38 - file: img_c6e2797821f44.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>39 <FILENAME>img_c4517e4763444.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 39 - file: img_c4517e4763444.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>40 <FILENAME>img_c7704109877f4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 40 - file: img_c7704109877f4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>41 <FILENAME>img_cad687eb63284.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 41 - file: img_cad687eb63284.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>42 <FILENAME>img_f89747899e284.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 42 - file: img_f89747899e284.jpg
</DOCUMENT> </SEC-DOCUMENT>