Costar Group Inc (CSGP)

NASD · Real Estate · Real Estate Services · USA

Costar Group Inc is a large cap company (market value between $10 billion and $200 billion) in the Real Estate Services industry.

CoStar Group provides online marketplaces, data, and analytics for the real estate industry across multiple continents. The company operates subscription-based platforms serving property professionals and consumers, including brands such as CoStar, LoopNet, Apartments.com, and Homes.com. Services encompass commercial property listings, leasing information, sales comparables, tenant details, and residential marketplace offerings.

From its FY2025 annual report (Form 10-K)

Intrinsic value, DCF valuation, financial health and value investing analysis for the Costar Group Inc stock.

Our verdict on CSGP

Overvalued: intrinsic value $14.21 per share, market price $31.81, margin of safety -123.9% (as of 2026-10-19).

Its through-the-cycle earnings (17.4% median margin), capitalised at 9.0% with no growth, values the shares at $14.21; the price of $31.81 is 124% above that value.

Leak Score: 36/100 on 12 of 12 signals (On Watch).

ETFs with the most weight in CSGP

17 more funds hold it; the full list is part of the paid plan.

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8 more in this industry show a wider margin of safety.

Is CSGP undervalued or overvalued?

CSGP is overvalued (as of the 2026-10-19 close). Its through-the-cycle earnings (17.4% median margin), capitalised at 9.0% with no growth, values the shares at $14.21; the price of $31.81 is 124% above that value.

What is the intrinsic value of CSGP?

$14.21 per share (as of the 2026-10-19 close), against a market price of $31.81. That is a margin of safety of -123.9%. The value is the average of the valuation methods that apply to this company, recomputed every night after the US close.

What is Costar Group Inc's Leak Score?

36 out of 100, which we rate "On Watch", on 12 of 12 value investing signals.