3Q 2009 QUARTERLY REPORT

Company

COSTAR GROUP, INC.

Filed

November 4, 2009

Period of Report

September 30, 2009

Accession Number

0001057352-09-000076

A 10-Q is a quarterly financial report filed after each of the first three quarters of a fiscal year. It includes unaudited financial statements and management commentary. Learn more about 10-Q filings →