# Costar Group Moat

Status: published. Policy: company-analysis-1.

CoStar's proprietary research database and integrated commercial real estate platform support a narrow moat, reinforced by repeated price increases alongside subscriber growth through June 2026. LoopNet also achieved higher listing prices and volumes. Company-wide renewal results demonstrate repeat demand, but do not establish strong switching barriers. Residential average prices declined in 2025 and the first half of 2026, limiting group-wide pricing power. Durable marketplace network effects remain unproven.

## intangible_assets

The researched proprietary database and integrated commercial real estate analytics platform provide differentiated information for customer workflows. Repeated subscriber growth alongside inflation-based price increases supports a current economic advantage rather than merely a product-development ambition.

Durability: Research collection, quality controls, historical information and integrated analytics support persistence. Commercial pricing and subscriber results recur across multiple reporting periods. The passages support a narrow advantage, without establishing exceptional durability or the cost and time competitors would need to replicate it.

Risks: Some inputs are licensed non-exclusively; proprietary content already appears on competitors' sites. Data access, intellectual-property enforcement and technological change could erode differentiation. Residential price declines show that the commercial advantage does not extend uniformly across the portfolio.

Invalidation: The thesis would weaken materially if successive annual periods showed commercial subscriber contraction alongside price concessions, or if competitors replicated the researched information and analytics sufficiently to cause sustained deterioration in renewals and commercial bookings. Loss of essential data rights or ineffective protection that demonstrably reduced customer willingness to pay would also invalidate it.

Competitors: CompStak, CREXi, Reonomy, Yardi Matrix, RealPage
- [https://www.sec.gov/Archives/edgar/data/1057352/000105735226000020/csgp-20251231.htm](https://www.sec.gov/Archives/edgar/data/1057352/000105735226000020/csgp-20251231.htm) · 2026-02-26
- [https://www.sec.gov/Archives/edgar/data/1057352/000105735226000066/csgp-20260630.htm](https://www.sec.gov/Archives/edgar/data/1057352/000105735226000066/csgp-20260630.htm) · 2026-07-29
- [https://www.sec.gov/Archives/edgar/data/1057352/000119312526197205/d903159ddef14a.htm](https://www.sec.gov/Archives/edgar/data/1057352/000119312526197205/d903159ddef14a.htm) · 2026-04-30
- [https://www.sec.gov/Archives/edgar/data/1057352/000105735225000016/csgp-20241231.htm](https://www.sec.gov/Archives/edgar/data/1057352/000105735225000016/csgp-20241231.htm) · 2025-02-20
- [https://www.sec.gov/Archives/edgar/data/1057352/000105735224000013/csgp-20231231.htm](https://www.sec.gov/Archives/edgar/data/1057352/000105735224000013/csgp-20231231.htm) · 2024-02-22
- [https://www.sec.gov/Archives/edgar/data/1057352/000105735226000035/csgp-20260331.htm](https://www.sec.gov/Archives/edgar/data/1057352/000105735226000035/csgp-20260331.htm) · 2026-04-29

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