 WASHINGTON--BUSINESS WIRE--CoStar Group, Inc. NASDAQ: CSGP will announce financial results for the fourth quarter and year end 2020 following the market close on Tuesday, February 23, 2021. Management will conduct a conference call to discuss the fourth quarter and full year results, as well as the Companys outlook at 5:00 PM ET that same day. A live audio webcast of the conference will be available in listen-only mode through the Investors section of the CoStar Group website: 