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United States securities and exchange commission logo





                     July 9, 2020

       Jason Dubinsky
       Chief Financial Officer
       Morningstar, Inc.
       22 West Washington Street
       Chicago, IL 60602

                                                        Re: Morningstar, Inc.
                                                            Form 10-K for the
Fiscal Year Ended December 31, 2019
                                                            Filed March 2, 2020
                                                            File No. 000-51280

       Dear Mr. Dubinsky:

              We have completed our review of your filing. We remind you that
the company and its
       management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.




                     Sincerely,


                     Division of Corporation Finance

                     Office of Finance
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