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CoStar Group CSGP

CoStar Group scores good on business quality (6.7 of 10). Here is why, in plain words, and what our sealed record shows.

Last price$29.67Oct 9, 2026
Business qualityGood
Next earningsOct 27, 2026
Insiders, 90 daysBuying

Why it matters

  1. What CoStar Group does

    CoStar Group operates commercial real estate information marketplaces, charging property managers and brokers subscription fees for data access. The company is expanding its residential portal, Homes.com, aggressively scaling consumer traffic through heavy marketing investments.

  2. What it does best

    CoStar dominates commercial real estate data verification, maintaining a gross margin of 78.7% compared to CBRE at 18.4%. This high margin stems from decades of proprietary database building that competitors cannot easily duplicate.

  3. The main risk

    Heavy marketing spend to build the Homes.com residential portal weighs on operating income, with operating margins sitting at just 2.2% in a top-decile revenue growth environment.

Quality, check by check

Scored against its own industry, from company filings.

ProfitabilityWeak

Operating margin sits at 2.2% and FCF margin at 6.4%, reflecting heavy reinvestment. The low profitability score indicates scale does not yet translate to high bottom-line conversion.

MoatFair

CoStar locks in commercial real estate brokers and enterprise clients through unmatched proprietary data depth, placing gross margin in the top quartile at 80th percentile.

GrowthFast

Revenue grew 18.7% to $3.6B, ranking in the top decile of its sector at 98. This growth rate accelerates from historical periods like 2021 when revenue stood at $1.9B.

Financial healthStrong

With cash of $1.6B and total debt of $1.0B, the balance sheet features net cash of $629M. Free cash flow recovered to $227M, pointing to a strengthening financial position.

Insiders

Executives and directors, from SEC Form 4 filings we read ourselves. Open market trades only; grants, option exercises and pre-planned sales left out.

1 insider bought $2.5M on the open market. 2 sold $253K outside pre-planned sales.

Our sealed record on CSGP

Verdicts appear here 30 days after we publish them; members see today's. Each one is in the nightly ledger, fingerprinted the night it was made.

The first sealed verdicts appear here on Oct 11, 2026.

Questions

Is CSGP a good business?

CoStar Group scores good on the Cluenex quality check (6.7 of 10), measured against its own industry. Profitability is weak, moat fair, growth fast and financial health strong.

Are insiders buying CSGP?

In the last 90 days of SEC Form 4 filings: 1 insider bought $2.5M on the open market. 2 sold $253K outside pre-planned sales.

When does CSGP report earnings?

Oct 27, 2026.

For members

See CSGP today

  • Today's verdict on CSGP, and why
  • Fair value with cautious, base and optimistic cases
  • The exact price that would change the verdict
  • Which stocks each signal names, the night it fires
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Cite this page: Cluenex, “CoStar Group (CSGP)”, https://cluenex.com/stocks/csgp/, data as of Oct 10, 2026.