---
schema_version: "secwatch.filing_event.v1"
accession: "0001057352-26-000004"
form_type: "8-K"
ticker: "CSGP"
cik: "0001057352"
company_name: "COSTAR GROUP, INC."
filed_at: "2026-01-07T23:59:59+00:00"
generated_at: "2026-05-16T11:18:38.255097+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# CoStar guides 2026 Adj. EBITDA to record $740M-$800M, announces $1.5B buyback

## Summary
- 2026 revenue guidance $3.78B-$3.82B (~18% YoY growth).
- 2026 Adj. EBITDA $740M-$800M (record, 83% YoY growth, 20% margin).
- Medium-term: ~15% revenue CAGR 2025-2028, $1.25B Adj. EBITDA in 2028.
- Homes.com net investment reduced by $300M in 2026 (from $850M); positive Adj. EBITDA by 2030.
- New $1.5B share repurchase program authorized; CEO Andrew Florance's tax gross-up eliminated.

## SEC filing metadata
- accession: 0001057352-26-000004
- form_type: 8-K
- ticker: CSGP
- cik: 0001057352
- company_name: COSTAR GROUP, INC.
- filed_at: 2026-01-07T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1057352/000105735226000004/0001057352-26-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057352/000105735226000004/csgp-20260107.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001057352-26-000004
- JSON: https://secwatch.observer/filing/0001057352-26-000004.json
- Plain text: https://secwatch.observer/filing/0001057352-26-000004.txt

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