<SEC-DOCUMENT>0001206774-21-000478-index.html : 20210222 <SEC-HEADER>0001206774-21-000478.hdr.sgml : 20210222 <ACCEPTANCE-DATETIME>20210222100949 ACCESSION NUMBER: 0001206774-21-000478 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 48 CONFORMED PERIOD OF REPORT: 20201231 FILED AS OF DATE: 20210222 DATE AS OF CHANGE: 20210222 EFFECTIVENESS DATE: 20210222 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: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-05986 FILM NUMBER: 21658622 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>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> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000219328 <CLASS-CONTRACT-NAME>T. Rowe Price Mid-Cap Index Fund-Z Class <CLASS-CONTRACT-TICKER-SYMBOL>TRSZX </CLASS-CONTRACT> </SERIES> </EXISTING-SERIES-AND-CLASSES-CONTRACTS> </SERIES-AND-CLASSES-CONTRACTS-DATA> </SEC-HEADER> <DOCUMENT> <TYPE>N-CSR <SEQUENCE>1 <FILENAME>armcx_ncsr.htm <DESCRIPTION>CERTIFIED SHAREHOLDER REPORT <TEXT> Document 1 - file: armcx_ncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>2 <FILENAME>ex-99cert.htm <DESCRIPTION>302 CERTIFICATIONS <TEXT> Document 2 - file: ex-99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906 CERT <SEQUENCE>3 <FILENAME>ex-99_906cert.htm <DESCRIPTION>906 CERTIFICATIONS <TEXT> Document 3 - file: ex-99_906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CODE ETH <SEQUENCE>4 <FILENAME>ex-99_codeeth.htm <DESCRIPTION>CODE OF ETHICS <TEXT> Document 4 - file: ex-99_codeeth.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>armcx_ncsrx10x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: armcx_ncsrx10x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>armcx_ncsrx11x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: armcx_ncsrx11x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>armcx_ncsrx12x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: armcx_ncsrx12x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>armcx_ncsrx13x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: armcx_ncsrx13x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>armcx_ncsrx14x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: armcx_ncsrx14x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>armcx_ncsrx15x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: armcx_ncsrx15x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>armcx_ncsrx16x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: armcx_ncsrx16x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>armcx_ncsrx17x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: armcx_ncsrx17x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>armcx_ncsrx18x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: armcx_ncsrx18x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>armcx_ncsrx19x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: armcx_ncsrx19x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>armcx_ncsrx20x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: armcx_ncsrx20x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>armcx_ncsrx21x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: armcx_ncsrx21x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>armcx_ncsrx22x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: armcx_ncsrx22x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>armcx_ncsrx23x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: armcx_ncsrx23x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>armcx_ncsrx24x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: armcx_ncsrx24x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>armcx_ncsrx25x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 20 - file: armcx_ncsrx25x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>armcx_ncsrx26x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 21 - file: armcx_ncsrx26x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>armcx_ncsrx27x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 22 - file: armcx_ncsrx27x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>armcx_ncsrx28x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 23 - file: armcx_ncsrx28x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>armcx_ncsrx29x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 24 - file: armcx_ncsrx29x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>armcx_ncsrx2x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 25 - file: armcx_ncsrx2x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>armcx_ncsrx30x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 26 - file: armcx_ncsrx30x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>armcx_ncsrx31x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 27 - file: armcx_ncsrx31x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>armcx_ncsrx32x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 28 - file: armcx_ncsrx32x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>armcx_ncsrx33x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 29 - file: armcx_ncsrx33x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>armcx_ncsrx34x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 30 - file: armcx_ncsrx34x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>armcx_ncsrx35x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 31 - file: armcx_ncsrx35x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>armcx_ncsrx36x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 32 - file: armcx_ncsrx36x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>armcx_ncsrx37x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 33 - file: armcx_ncsrx37x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>34 <FILENAME>armcx_ncsrx38x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 34 - file: armcx_ncsrx38x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>35 <FILENAME>armcx_ncsrx39x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 35 - file: armcx_ncsrx39x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>36 <FILENAME>armcx_ncsrx40x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 36 - file: armcx_ncsrx40x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>37 <FILENAME>armcx_ncsrx41x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 37 - file: armcx_ncsrx41x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>38 <FILENAME>armcx_ncsrx42x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 38 - file: armcx_ncsrx42x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>39 <FILENAME>armcx_ncsrx43x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 39 - file: armcx_ncsrx43x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>40 <FILENAME>armcx_ncsrx49x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 40 - file: armcx_ncsrx49x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>41 <FILENAME>armcx_ncsrx49x2.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 41 - file: armcx_ncsrx49x2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>42 <FILENAME>armcx_ncsrx4x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 42 - file: armcx_ncsrx4x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>43 <FILENAME>armcx_ncsrx51x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 43 - file: armcx_ncsrx51x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>44 <FILENAME>armcx_ncsrx5x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 44 - file: armcx_ncsrx5x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>45 <FILENAME>armcx_ncsrx64x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 45 - file: armcx_ncsrx64x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>46 <FILENAME>armcx_ncsrx6x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 46 - file: armcx_ncsrx6x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>47 <FILENAME>armcx_ncsrx9x1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 47 - file: armcx_ncsrx9x1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>48 <FILENAME>titlebar_annual.gif <DESCRIPTION>GRAPHIC <TEXT> Document 48 - file: titlebar_annual.gif
</DOCUMENT> </SEC-DOCUMENT>