Is CoStar Group Stock (CSGP) Halal? A Complete Analysis

The Short Answer

CoStar Group stock (CSGP) is generally considered halal by most Islamic scholars and Sharia screening criteria. CSGP is the leading global provider of commercial-real-estate (CRE) information, analytics, and online marketplaces, with a clean SaaS-and-marketplace business model and a net-cash balance sheet.

Commercial-real-estate information, analytics, subscription-software, and online-listings-marketplace services are unambiguously permissible at the activity level under standard Sharia methodology. The financial screen passes comfortably with conservative leverage.

Sharia Screening Methodology

Islamic scholars use several criteria to screen stocks:

• Business activity screen: Is the company's primary business halal?
• Debt ratio: Total debt / market cap must be under 33%
• Interest income: Interest income / total revenue must be under 5%
• Haram revenue: Revenue from haram sources must be under 5%
• Receivables ratio: Total receivables / total assets must be under 49–70% (varies by board)

CoStar Group's Business Activity

CoStar Group is organized into the following reporting segments:

• CoStar Suite: The flagship CRE information-and-analytics subscription platform serving brokerage firms, owners, lenders, investors, appraisers, government agencies, and corporate occupiers — covering office, industrial, retail, multifamily, hospitality, and specialty property types across North America and Europe
• Information Services: LoopNet — the largest CRE listings marketplace, plus Lands of America and BizBuySell
• Multifamily: Apartments.com — the leading US apartment-listings marketplace, plus ApartmentFinder, ForRent, and ApartmentHomeLiving
• Residential: The Homes.com residential-listings marketplace, built out aggressively post-2024
• Other Marketplaces: LandWatch, BizBuySell, Realla, and other niche listings marketplaces

CoStar Group also owns the Matterport spatial-data and 3D-capture platform acquired in 2025.

Concerns to Be Aware Of

1. Net-Cash Position and Interest Income

CoStar Group carries a substantial net-cash position, and interest income may be a non-trivial component of other-income. Purification of a small portion of any dividends or distributions may be advisable, though CoStar does not currently pay a regular dividend.

2. Customer-Mix Look-Through

Some end-customers are commercial-real-estate lenders and financial-services firms. The underlying product is information-services rather than directly facilitating impermissible activity, but stricter screens may flag the customer-mix consideration.

3. Homes.com Build-Out Margin Pressure

The aggressive Homes.com marketing-and-content investment cycle has weighed on operating margin during the build-out period. This is a business-investment consideration rather than a Sharia screen concern.

4. Listings-Platform Content

Listings-marketplace platforms may host third-party listings from a broad range of property owners and operators. At the platform-policy level, the listings-marketplace business is permissible content-distribution; verify the current platform-content treatment at your preferred board.

Financial Ratios (2025)

Based on CoStar Group's most recent financial statements:

• Total Debt / Market Cap: Well below 33% threshold — net-cash balance sheet ✅
• Interest Income / Revenue: Verify against 5% threshold given net-cash position ⚠️
• Haram Revenue: Negligible ✅
• Business Activity: Permissible information-services and software ✅

Verdict from Major Screening Agencies

CoStar Group stock is generally screened as compliant (halal) with purification by:

• Zoya App — Compliant with purification ✅
• MSCI Islamic criteria — Generally included ✅
• Most major Sharia advisory boards — Compliant with purification of small interest-income component ✅

Bottom Line

CoStar Group (CSGP) is generally halal with purification for Muslim investors. The core business — CRE information, analytics, and online marketplaces — is unambiguously permissible at the activity level, and the financial screen passes comfortably with a net-cash balance sheet.

For Muslim investors seeking software-and-information-services exposure, CSGP sits alongside other halal-screened data and SaaS names like Verisk (VRSK), Tyler Technologies (TYL), and Salesforce (CRM).