---
schema_version: "secwatch.filing_event.v1"
accession: "0001057352-21-000077"
form_type: "8-K"
ticker: "CSGP"
cik: "0001057352"
company_name: "COSTAR GROUP, INC."
filed_at: "2021-07-27T23:59:59+00:00"
generated_at: "2026-06-30T02:03:10.064099+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# CoStar Q2 revenue $480M (+21% YoY); raises FY revenue guide, cuts EBITDA guide due to Homes.com

## Summary
- Revenue $480M (+21% YoY); net income $61M ($0.16 eps); non-GAAP net income $103M ($0.26 eps).
- Net new bookings $51M (+47% YoY); CoStar Suite net new bookings up over 900% YoY.
- Apartments.com traffic up 30% YoY; leads up 57% YoY; LoopNet ad revenue up 71%.
- FY 2021 revenue guidance raised to $1.94-1.95B (~17% growth); adjusted EBITDA lowered to $605-615M.
- Q3 2021 revenue expected $495-500M; adjusted EBITDA $130-135M; non-GAAP EPS $0.22-0.23.

## SEC filing metadata
- accession: 0001057352-21-000077
- form_type: 8-K
- ticker: CSGP
- cik: 0001057352
- company_name: COSTAR GROUP, INC.
- filed_at: 2021-07-27T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1057352/000105735221000077/0001057352-21-000077-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057352/000105735221000077/csgp-20210727.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001057352-21-000077
- JSON: https://secwatch.observer/filing/0001057352-21-000077.json
- Plain text: https://secwatch.observer/filing/0001057352-21-000077.txt

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