CoStar Group Q3 revenue rises 20% to $834 million; GAAP net loss of $31 million
CoStar Group reported third-quarter 2025 revenue of $834 million, up 20% from a year earlier, and raised its full-year 2025 adjusted EBITDA guidance to $415 million to $425 million. The company posted a GAAP net loss of $31 million, or $0.07 per diluted share, compared with net income of $53 million in the prior-year quarter, although non-GAAP net income rose 10% to $97 million.
Key points
- Q3 2025 revenue was $834 million, up 20% from $693 million a year earlier
- GAAP net loss was $31 million, or $0.07 per diluted share, versus net income of $53 million in Q3 2024
- Adjusted EBITDA was $115 million in Q3, up 51% year over year
- Full-year 2025 adjusted EBITDA guidance raised to $415 million to $425 million, a $40 million increase at the midpoint
The filing
Written by AI on Nov 8, 2026, 1:12 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 28, 2025.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.