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CoStar Group, Inc. (CSGP)

CoStar Group, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

CoStar Group, Inc. (CSGP) is a Real Estate - Services company based in US with a market capitalization of $13.4B. Revenue grew 18.7% year-over-year and the company generated $41M in free cash flow. This page tracks CSGP's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 8.44K employees · IPO Jul 1, 1998

Valuation

Valuation & price

$32.68 · as of May 17, 2026 · -66.3% vs 52w high

1964.1

P/E ratio

Latest-FY diluted EPS

1.60

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$96.83$63.02$29.22Jul 25Dec 25Jul 26Jul 7, 25$81.60Jul 9, 25$84.50Jul 11, 25$85.43Jul 15, 25$84.09Jul 17, 25$84.95Jul 21, 25$85.01Jul 23, 25$91.00Jul 25, 25$92.97Jul 29, 25$95.59Jul 31, 25$95.19Aug 4, 25$96.83Aug 6, 25$96.29Aug 11, 25$92.50Aug 13, 25$87.56Aug 15, 25$89.66Aug 19, 25$88.95Aug 21, 25$88.36Aug 25, 25$90.51Aug 27, 25$89.45Aug 29, 25$89.49Sep 3, 25$87.86Sep 5, 25$89.46Sep 9, 25$88.14Sep 11, 25$87.06Sep 16, 25$88.13Sep 18, 25$89.26Sep 22, 25$86.31Sep 24, 25$84.05Sep 26, 25$83.99Sep 30, 25$84.37Oct 2, 25$83.90Oct 6, 25$81.15Oct 8, 25$79.00Oct 10, 25$75.58Oct 14, 25$75.73Oct 16, 25$74.35Oct 21, 25$76.85Oct 23, 25$77.66Oct 27, 25$78.12Oct 29, 25$70.51Oct 31, 25$68.81Nov 4, 25$69.79Nov 6, 25$67.36Nov 10, 25$67.23Nov 12, 25$69.02Nov 14, 25$68.05Nov 18, 25$66.81Nov 20, 25$65.52Nov 25, 25$69.20Nov 28, 25$68.80Dec 2, 25$68.20Dec 4, 25$68.19Dec 8, 25$66.33Dec 10, 25$67.87Dec 12, 25$68.23Dec 16, 25$63.62Dec 18, 25$64.88Dec 22, 25$66.60Dec 24, 25$66.89Dec 29, 25$67.60Jan 2, 26$65.69Jan 6, 26$67.20Jan 8, 26$61.36Jan 12, 26$59.30Jan 14, 26$63.87Jan 16, 26$65.34Jan 21, 26$64.77Jan 23, 26$65.60Jan 27, 26$66.22Jan 29, 26$61.93Feb 2, 26$61.18Feb 4, 26$52.34Feb 9, 26$50.96Feb 11, 26$47.87Feb 13, 26$44.99Feb 18, 26$48.94Feb 20, 26$49.87Feb 24, 26$49.15Feb 26, 26$45.00Mar 2, 26$45.17Mar 4, 26$47.60Mar 6, 26$48.38Mar 10, 26$46.33Mar 12, 26$43.36Mar 17, 26$44.25Mar 19, 26$42.82Mar 23, 26$42.91Mar 25, 26$41.41Mar 27, 26$39.77Mar 31, 26$40.34Apr 2, 26$39.95Apr 7, 26$39.48Apr 9, 26$37.32Apr 13, 26$37.06Apr 15, 26$39.31Apr 17, 26$39.72Apr 22, 26$38.77Apr 24, 26$36.44Apr 28, 26$35.96Apr 30, 26$34.61May 4, 26$35.38May 6, 26$34.07May 8, 26$32.77May 12, 26$33.05May 14, 26$31.85May 18, 26$33.20May 20, 26$34.01May 22, 26$33.95May 28, 26$32.30Jun 1, 26$33.86Jun 3, 26$33.40Jun 5, 26$33.89Jun 9, 26$33.93Jun 11, 26$32.65Jun 15, 26$32.04Jun 17, 26$30.46Jun 22, 26$29.22Jun 24, 26$29.81Jun 26, 26$30.25Jul 2, 26$30.00
$28.3252-week range$96.83
Loading valuation history…

Fundamentals

Key fundamentals

$13.4B

Market cap

18.7%

Revenue growth (YoY)

75.2%

Gross margin

$41M

Free cash flow (USD)

-$589M

Net debt

Net cash position

2.6%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Real Estate

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$837.6MFY 2017$965.2MFY 2018$1.2BFY 2019$1.4BFY 2020$1.7BFY 2021$1.9BFY 2022$2.2BFY 2023$2.5BFY 2024$2.7BFY 2025$3.2B
$837.6M$3.2B

Free cash flow by year

2016 → 2025

FY 2016$181.9MFY 2017$210.2MFY 2018$305.8MFY 2019$411.6MFY 2020$437.8MFY 2021$404.5MFY 2022$420.0MFY 2023$464.2MFY 2024$-245.3MFY 2025$41.0M
$181.9M$41M

Gross margin by year

2021 → 2025

FY 202181.6%FY 202281.0%FY 202380.0%FY 202479.6%FY 202575.2%
81.6%75.2%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed Apr 29, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventEmployee Stock Purchase Plan ApprovedJun 25, 2026Filing
  • 8-K eventAcquisition AnnouncedMay 29, 2026Filing
  • Quarterly report10-Q FiledApr 29, 2026Filing
  • 8-K eventEarnings ReleaseApr 28, 2026Filing

Questions

Frequently asked questions

What is CoStar Group, Inc.'s market cap?

CoStar Group, Inc. (CSGP) has a market capitalization of $13.4B.

What is CSGP's P/E ratio?

CSGP trades at a price-to-earnings ratio of 1964.1, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is CSGP's price-to-book (P/B) ratio?

CSGP trades at 1.60 times book value per share.

Are insiders buying CSGP stock?

SEC Form 4 filings show no open-market insider buys at CoStar Group, Inc. in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.