---
schema_version: "secwatch.filing_event.v1"
accession: "0001057352-25-000116"
form_type: "8-K"
ticker: "CSGP"
cik: "0001057352"
company_name: "COSTAR GROUP, INC."
filed_at: "2025-10-28T23:59:59+00:00"
generated_at: "2026-05-17T01:51:34.373711+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# CoStar Q3 revenue up 20% to $834M, net new bookings up 92%; raises FY EBITDA guidance

## Summary
- Revenue $834M (+20% YoY); GAAP net loss $31M ($0.07 diluted loss per share).
- Adjusted EBITDA $115M (+51% YoY); non-GAAP net income $97M ($0.23 diluted EPS).
- Net new bookings $84M (+92% YoY); Homes.com Members over 26,000 (+150% YoY).
- FY2025 revenue guidance $3.23B-$3.24B; adj EBITDA guidance raised to $415M-$425M.
- Q4 2025 revenue guided $885M-$895M; Q4 adj EBITDA guided $150M-$160M.

## SEC filing metadata
- accession: 0001057352-25-000116
- form_type: 8-K
- ticker: CSGP
- cik: 0001057352
- company_name: COSTAR GROUP, INC.
- filed_at: 2025-10-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1057352/000105735225000116/0001057352-25-000116-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057352/000105735225000116/csgp-20251028.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001057352-25-000116
- JSON: https://secwatch.observer/filing/0001057352-25-000116.json
- Plain text: https://secwatch.observer/filing/0001057352-25-000116.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.