CoStar Group Reports Record Third Quarter Revenue of $952 Million; Profitability Surges with Net Income of $74 Million; Highest Ever Adjusted EBITDA of $229 Million, Doubling Year-over-Year; Raises Full-Year 2026 Adjusted EBITDA Guidance

What happened

CoStar Group, ticker CSGP, reported record third-quarter revenue of $952 million, up 14% from a year earlier. Net income was $74 million and adjusted EBITDA reached $229 million, double the prior year. The company also found at least $200 million in potential extra savings and raised its full-year 2026 guidance.

Global impact / market context

The company is selling more and keeping more profit from those sales. It also found ways to spend less. Together this can make the business look stronger to ordinary investors and may support the share price. The raised guidance means the company expects better results for the full year than it said before.

What to watch

1. Check the full-year 2026 guidance details, because the company raised its outlook for adjusted EBITDA, revenue, and adjusted earnings per share. This matters because it shows what management expects for the rest of the year.
2. Check how much of the at least $200 million in potential savings actually gets put in place. This matters because promised savings only help results if they are actually carried out.
3. Check future quarterly revenue and adjusted EBITDA against the record third-quarter figures of $952 million and $229 million. This matters because it shows whether the growth and profit jump keep going.

Affected assets

• CoStar Group, Inc.

Evidence

• Infoway News — CHGG: AI-driven traffic losses cut Q3 revenue 40%, while lower costs narrowed the net loss 2026-11-03T13:45:24+00:00
• Infoway News — Ametek 3Q Net $426.3M >AME 2026-11-03T11:55:00+00:00
• Infoway News — CSGP: Q3 revenue grew 14% to $952M; FY revenue guidance reaches $3.75B–$3.77B 2026-10-27T21:05:21+00:00
• Infoway News — CoStar Group, Inc. reports results for the quarter ended September 30 - Earnings Summary 2026-10-27T21:00:56+00:00
• Infoway News — CoStar: Deep Expense Review Identified Potential Additional Savings of at Least $200 M >CSGP 2026-10-27T20:22:00+00:00
• Infoway News — CoStar Group, Inc. (CSGP) Q3 Revenue $952M; Raises 2026 EBITDA, EPS, Revenue Guidance 2026-10-27T20:05:00+00:00
• Infoway News — CoStar Group 3Q Rev $952M >CSGP 2026-10-27T20:05:00+00:00
• Infoway News — CoStar Group 3Q Net $74M >CSGP 2026-10-27T20:05:00+00:00
• Infoway News — CoStar Group Reports Record Third Quarter Revenue of $952 Million; Profitability Surges with Net Income of $74 Million; Highest Ever Adjusted EBITDA of $229 Million, Doubling Year-over-Year; Raises Full-Year 2026 Adjusted EBITDA Guidance 2026-10-27T20:05:00+00:00
• Incident timeline — CHGG: AI-driven traffic losses cut Q3 revenue 40%, while lower costs narrowed the net loss
• Incident timeline — Ametek 3Q Net $426.3M >AME
• Incident timeline — CSGP: Q3 revenue grew 14% to $952M; FY revenue guidance reaches $3.75B–$3.77B
• Incident timeline — CoStar Group, Inc. reports results for the quarter ended September 30 - Earnings Summary
• Incident timeline — CoStar: Deep Expense Review Identified Potential Additional Savings of at Least $200 M >CSGP
• Incident timeline — CoStar Group, Inc. (CSGP) Q3 Revenue $952M; Raises 2026 EBITDA, EPS, Revenue Guidance
• Incident timeline — CoStar Group 3Q Rev $952M >CSGP
• Incident timeline — CoStar Group 3Q Net $74M >CSGP
• Incident timeline — CoStar Group Reports Record Third Quarter Revenue of $952 Million; Profitability Surges with Net Income of $74 Million; Highest Ever Adjusted EBITDA of $229 Million, Doubling Year-over-Year; Raises Full-Year 2026 Adjusted EBITDA Guidance