CoStar Group's results for Q3 2026 (quarter ended September 30, 2026) come from the company's own earnings release, filed with the SEC on 2026-10-27. Everything below is taken from that filing; quotes are copied exactly. Company outlooks are the company's own.
At a glance
| Item | Value |
|---|---|
| Revenue (GAAP) | $952 million (+14.2% vs a year earlier) |
| Diluted EPS (GAAP) | $0.18 |
| Adjusted per-share figure (company's non-GAAP measure; FFO/AFFO for REITs) | $0.38 |
| Full-year guidance | Raised |
Guidance
CoStar raised 2026 guidance: adjusted EBITDA to $820-840 million (+$30 million midpoint), revenue to $3.75-3.77 billion, adjusted EPS to $1.38-1.41.
Why this label: Release says it is increasing 2026 adjusted EBITDA, revenue and adjusted EPS guidance.
| Metric | Period | New | Prior (as stated in the release) |
|---|---|---|---|
| adjusted EBITDA | FY2026 | $820–840 million | not stated |
| revenue | FY2026 | $3.75–3.77 billion | not stated |
| adjusted EPS | FY2026 | $1.38–1.41 | not stated |
| adjusted EBITDA target | FY2028 | $1.25 billion | not stated |
Next-quarter outlook:
| Metric | Period | Range |
|---|---|---|
| revenue | Q4 2026 | $976–996 million |
| adjusted EBITDA | Q4 2026 | $275–295 million |
| adjusted EPS | Q4 2026 | $0.46–0.50 |
From the release
Revenue: "Revenue · $ · 952 · $ · 834 · $ · 2,774 · $ · 2,347"
Earnings per share: "Earnings per diluted share was $0.18 for the third quarter of 2026. Adjusted Net Income rose to $153 million in the third quarter, up 59% year-over-year. Adjusted EPS was $0.38 in the third quarter, up 65% year-over-year."
adjusted EBITDA: "The Company is increasing its Adjusted EBITDA guidance for the full year of 2026 to a range of $820 million to $840 million, which represents an increase of $30 million at the midpoint of the range from its guidance in July 2026"
revenue: "The Company is increasing its revenue guidance for 2026 to a range of $3.75 billion to $3.77 billion, representing revenue growth of approximately 16% year-over-year at the midpoint of the range."
adjusted EPS: "The Company is increasing its full year 2026 Adjusted EPS guidance in a range of $1.38 to $1.41 based on 405 million shares."
Quotes are copied from the filing; in table rows, cell borders are shown as “·”.
Key fact: Q3 adjusted EBITDA doubled to $229 million; 2026 EBITDA guidance raised $30 million
Source
CoStar Group earnings release (SEC filing), accession 0001057352-26-000078, filed 2026-10-27.
Part of the Q3 2026 Guidance Tracker. Educational only, not advice. Free weekly recap every Sunday: yieldterminalpro.com/newsletter.