CoStar Group, a Virginia-based real estate information and analytics firm, reported its fourth-quarter earnings, revealing a revenue of $709.4 million, which represents a 10.83% year-over-year increase and exceeds analyst expectations by $6.4 million. However, the company's earnings per share (EPS) of $0.15 fell short of estimates by $0.08, marking a 54.55% decline compared to the previous year. The firm has achieved its 55th consecutive quarter of double-digit revenue growth, driven primarily by strong performance in its Apartments-com segment, which saw a 17% year-over-year growth. Despite these positive results, concerns have been raised about CoStar's profitability, as its adjusted EBITDA guidance of $390 million is below the market expectation of $450 million. Additionally, CoStar is reportedly preparing a $1.7 billion bid for Australia's Domain Holdings, which could intensify competition with News Corp’s REA Group, the largest classifieds firm in Australia.