Exhibit Description 

10.9* Form of Morningstar 2004 Stock Incentive Plan Restricted Stock Unit Award Agreement for awards made on and after January 1, 2009 is incorporated by reference to Exhibit 10.10 to our Annual Report on Form 10-K for the year ended December 31, 2008 (the 2008 10-K). 

10.10* Form of Morningstar 2004 Stock Incentive Plan Director Restricted Stock Unit Award Agreement for awards made on and after January 1, 2009 is incorporated by reference to Exhibit 10.11 to the 2008 10-K. 

10.11* Form of Morningstar 2004 Stock Incentive Plan Deferral Election Form is incorporated by reference to Exhibit 10.3 to the March 2006 10-Q. 

10.12* Form of Morningstar 2004 Stock Incentive Plan Director Deferral Election Form is incorporated by reference to Exhibit 10.4 to the March 2006 10-Q. 

10.13* Purchase Agreement dated April 30, 2003 between Morningstar and Patrick Reinkemeyer is incorporated by reference to Exhibit 10.8 to the Registration Statement. 

10.14* First Amendment to Purchase Agreement dated as of February 1, 2006 between Morningstar and Patrick Reinkemeyer is incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K that we filed with the SEC on February 3, 2006 (the February 2006 8-K). 

10.15* Purchase Agreement dated April 30, 2003 between Morningstar and David Williams is incorporated by reference to Exhibit 10.9 to the Registration Statement. 

10.16* First Amendment to Purchase Agreement dated as of February 1, 2006 between Morningstar and David Williams is incorporated by reference to Exhibit 10.2 to the February 2006 8-K. 

10.17* Agreement dated as of February 18, 2010 between Tao Huang and Morningstar is incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K that we filed with the SEC on February 18, 2010. 

10.18* Separation Agreement dated as of November 10, 2010 between Morningstar Associates, Morningstar, and Patrick Reinkemeyer is incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K that we filed with the SEC on November 10, 2010. 

10.19* Separation Agreement dated as of January 27, 2011between Morningstar and Tao Huang is incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K that we filed with the SEC on January 28, 2011. 

Exhibit Description 

16.1 Letter from Ernst & Young LLP dated as of October 20, 2010 regarding a change in Morningstar’s certified public accoun- tant is incorporated by reference to Exhibit 16.1to our Current Report on Form 8-K that we filed with the SEC on October 20, 2010. 

21.1 † Subsidiaries of Morningstar. 

23.1 † Consent of Ernst & Young LLP. 

31.1 † Certification of Chief Executive Officer pursuant to Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended. 

31.2 † Certification of Chief Financial Officer pursuant to Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended. 

32.1 † Certification of Chief Executive Officer Pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes- Oxley Act of 2002. 

32.2 † Certification of Chief Financial Officer Pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes- Oxley Act of 2002. 

101 ^ The following financial information from Morningstar Annual Report on Form 10-K for the year ended December 31, 2010, filed with the SEC on February 28, 2011, formatted in XBRL: (i) Condensed Consolidated Statements of Income, (ii) Condensed Consolidated Balance Sheets, (iii) Condensed Consolidated Statement of Equity and Comprehensive Income (Loss), (iv) Condensed Consolidated Statements of Cash Flows and (v) the Notes to Unaudited Condensed Consolidated Financial Statements, tagged as blocks of text. 

