CoStar Group, Inc. logo
CSGPCoStar Group, Inc.

Shares Outstanding: 414.00M

popular:market cap|pe ratio|revenue|price history|total return

The shares outstanding is 414.00M. It is below its 12-month average by 0.88% (417.66M).

Market Cap|Share Buybacks|EPS|All Metrics
Shares Outstanding

CSGP Shares Outstanding

414.00M

Reported quarterly weighted average share count; no daily interpolation.

+5.05% 5Y
CSGP Shares Outstanding

CSGP Average Shares Outstanding Chart

CSGP Shares Outstanding

CSGP Current vs Average Shares Outstanding Chart

CSGP Shares Outstanding Metrics

SHARES OUTSTANDING

414.00M

SHARES OUTSTANDING AVG TTM

417.66M

SHARES OUTSTANDING AVG 3Y

410.23M

SHARES OUTSTANDING AVG 5Y

405.46M

SHARES OUTSTANDING AVG 10Y

380.75M

SHARES OUTSTANDING AVG 15Y

348.41M

SHARES OUTSTANDING AVG 20Y

310.99M

CURRENT VS TTM AVG

-0.88%

CURRENT VS 3Y AVG

+0.92%

CURRENT VS 5Y AVG

+2.11%

CURRENT VS 10Y AVG

+8.73%

CURRENT VS 15Y AVG

+18.83%

CURRENT VS 20Y AVG

+33.12%

Share Structure

Shares Outstanding

416.80M

Float Shares

N/A

Stock Price

$29.81

Market Cap

$12.2B

Quarterly Shares Outstanding History

PeriodWeighted Average SharesQoQ Change
Q1 2026414.00M-1.33%
Q4 2025419.60M-0.07%
Q3 2025419.90M-1.04%
Q2 2025424.30M+3.36%
Q1 2025410.50M+0.51%
Q4 2024408.40M+0.10%
Q3 2024408.00M+0.15%
Q2 2024407.40M+0.02%
Q1 2024407.30M-0.05%
Q4 2023407.50M+0.07%
Q3 2023407.23M+0.12%
Q2 2023406.75M+0.14%
Q1 2023406.20M+0.03%
Q4 2022406.09M+2.49%
Q3 2022396.21M+0.44%
Q2 2022394.48M+0.06%
Q1 2022394.23M-0.08%
Q4 2021394.53M+0.06%
Q3 2021394.30M+0.05%
Q2 2021394.10M+0.10%
Q1 2021393.71M-0.06%
Q4 2020393.95M-0.02%
Q3 2020394.01M+4.42%
Q2 2020377.34M+2.60%
Q1 2020367.76M+0.28%
Q4 2019366.74M+0.06%
Q3 2019366.52M+0.07%
Q2 2019366.27M+0.16%
Q1 2019365.67M+0.25%
Q4 2018364.74M-0.12%
Q3 2018365.18M+0.19%
Q2 2018364.50M+0.28%
Q1 2018363.50M+0.64%
Q4 2017361.19M+10.07%
Q3 2017328.14M+0.23%
Q2 2017327.39M+0.54%
Q1 2017325.63M+0.28%
Q4 2016324.73M+0.10%
Q3 2016324.40M-0.02%
Q2 2016324.48M+0.20%
Q1 2016323.82M+0.30%
Q4 2015322.84M+0.95%
Q3 2015319.80M-0.03%
Q2 2015319.91M+0.50%
Q1 2015318.31M-0.97%
Q4 2014321.42M+0.21%
Q3 2014320.75M+8.78%
Q2 2014294.86M+2.24%
Q1 2014288.40M+1.41%
Q4 2013284.38M+0.31%
Q3 2013283.49M+0.64%
Q2 2013281.68M+2.70%
Q1 2013274.28M-1.07%
Q4 2012277.24M+0.18%
Q3 2012276.73M+4.56%
Q2 2012264.65M+3.67%
Q1 2012255.28M+1.59%
Q4 2011251.28M-0.75%
Q3 2011253.17M+12.89%
Q2 2011224.26M+6.97%
Q1 2011209.65M+2.11%
Q4 2010205.31M-0.76%
Q3 2010206.88M+0.31%
Q2 2010206.24M+0.11%
Q1 2010206.02M+1.74%
Q4 2009202.49M+0.82%
Q3 2009200.84M+2.27%
Q2 2009196.38M+0.39%
Q1 2009195.62M+0.48%
Q4 2008194.68M-0.69%
Q3 2008196.04M+0.49%
Q2 2008195.08M+0.72%
Q1 2008193.69M+0.79%
Q4 2007192.17M-1.32%
Q3 2007194.75M+0.66%
Q2 2007193.48M+0.73%
Q1 2007192.07M+1.65%
Q4 2006188.96M-1.22%
Q3 2006191.30M-0.68%
Q2 2006192.61M-0.04%
Q1 2006192.69M+3.09%
Q4 2005186.92M-2.10%
Q3 2005190.92M+1.19%
Q2 2005188.68M+0.04%
Q1 2005188.61M+2.96%
Q4 2004183.18M-3.07%
Q3 2004188.98M+0.68%
Q2 2004187.71M+0.39%
Q1 2004186.99M+4.11%
Q4 2003179.61M+8.97%
Q3 2003164.82M+3.95%
Q2 2003158.56M+0.27%
Q1 2003158.14M+0.00%
Q4 2002158.14M+0.23%
Q3 2002157.77M+0.22%
Q2 2002157.42M-

Relationship: Market Cap = Shares Outstanding × Stock Price

Key concepts:

  • Float shares: Shares available for public trading
  • Dilution: When new shares are issued, existing shareholders own less
  • Buybacks: Reduce share count, increasing EPS and ownership stake
  • Stock splits: Increase share count but don't change market cap

Shares Outstanding Formula & Definition

Shares Outstanding represents the reported weighted average share count used for per-share metrics. Changes in share count affect EPS and ownership dilution.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

Shares Outstanding FAQ

What is the shares outstanding for CoStar Group, Inc. (CSGP)?
The shares outstanding for CSGP stock is 414.00M.
What is the TTM average shares outstanding for CoStar Group, Inc. (CSGP)?
The TTM average shares outstanding for CSGP stock is 417.66M.
What is the 3Y average shares outstanding for CoStar Group, Inc. (CSGP)?
The 3Y average shares outstanding for CSGP stock is 410.23M.
What is the 5Y average shares outstanding for CoStar Group, Inc. (CSGP)?
The 5Y average shares outstanding for CSGP stock is 405.46M.
What is the 10Y average shares outstanding for CoStar Group, Inc. (CSGP)?
The 10Y average shares outstanding for CSGP stock is 380.75M.
What is the 15Y average shares outstanding for CoStar Group, Inc. (CSGP)?
The 15Y average shares outstanding for CSGP stock is 348.41M.
What is the 20Y average shares outstanding for CoStar Group, Inc. (CSGP)?
The 20Y average shares outstanding for CSGP stock is 310.99M.

CSGP Shares Outstanding History

DATESHARES OUTSTANDING
2026-03-31414.00M
2025-12-31419.60M
2025-09-30419.90M
2025-06-30424.30M
2025-03-31410.50M
2024-12-31408.40M
2024-09-30408.00M
2024-06-30407.40M
2024-03-31407.30M
2023-12-31407.50M
2023-09-30407.23M
2023-06-30406.75M
2023-03-31406.20M
2022-12-31406.09M
2022-09-30396.21M
2022-06-30394.48M
2022-03-31394.23M
2021-12-31394.53M
2021-09-30394.30M
2021-06-30394.10M
2021-03-31393.71M
2020-12-31393.95M
2020-09-30394.01M
2020-06-30377.34M
2020-03-31367.76M
2019-12-31366.74M
2019-09-30366.52M
2019-06-30366.27M
2019-03-31365.67M
2018-12-31364.74M
2018-09-30365.18M
2018-06-30364.50M
2018-03-31363.50M
2017-12-31361.19M
2017-09-30328.14M
2017-06-30327.39M
2017-03-31325.63M
2016-12-31324.73M
2016-09-30324.40M
2016-06-30324.48M
2016-03-31323.82M
2015-12-31322.84M
2015-09-30319.80M
2015-06-30319.91M
2015-03-31318.31M
2014-12-31321.42M
2014-09-30320.75M
2014-06-30294.86M
2014-03-31288.40M
2013-12-31284.38M
2013-09-30283.49M
2013-06-30281.68M
2013-03-31274.28M
2012-12-31277.24M
2012-09-30276.73M
2012-06-30264.65M
2012-03-31255.28M
2011-12-31251.28M
2011-09-30253.17M
2011-06-30224.26M
2011-03-31209.65M
2010-12-31205.31M
2010-09-30206.88M
2010-06-30206.24M
2010-03-31206.02M
2009-12-31202.49M
2009-09-30200.84M
2009-06-30196.38M
2009-03-31195.62M
2008-12-31194.68M
2008-09-30196.04M
2008-06-30195.08M
2008-03-31193.69M
2007-12-31192.17M
2007-09-30194.75M
2007-06-30193.48M
2007-03-31192.07M
2006-12-31188.96M
2006-09-30191.30M
2006-06-30192.61M
2006-03-31192.69M
2005-12-31186.92M
2005-09-30190.92M
2005-06-30188.68M
2005-03-31188.61M
2004-12-31183.18M
2004-09-30188.98M
2004-06-30187.71M
2004-03-31186.99M
2003-12-31179.61M
2003-09-30164.82M
2003-06-30158.56M
2003-03-31158.14M
2002-12-31158.14M
2002-09-30157.77M
2002-06-30157.42M

Related Metrics

Market CapShare BuybacksEPSAll Metrics

About CoStar Group, Inc.

CoStar Group, Inc. (CSGP) stands as a premier global provider of comprehensive information, sophisticated analytics, and dynamic online marketplace services. The company caters to professionals within the commercial real estate, hospitality, residential, and related industries, extending its reach across the United States, Canada, Europe, the Asia Pacific region, and Latin America. Its diverse suite of offerings encompasses powerful data platforms like CoStar Property, which meticulously catalogues an extensive inventory of various property types, including office, industrial, retail, multifamily, hospitality, student housing, and undeveloped land. Other key analytical tools comprise CoStar COMPS, a robust repository of comparable commercial real estate sales transactions; CoStar Market Analytics, designed for examining aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical resource providing detailed tenant information. Additionally, CoStar offers solutions for lease management, including Lease Comps and Analysis and CoStar Lease Analysis, alongside Public Record, a searchable database of commercially-zoned land parcels. Its software solutions feature CoStar Real Estate Manager, designed for comprehensive lease administration, portfolio oversight, and lease accounting compliance, as well as specialized CoStar Risk Analytics and CoStar Investment tools. Beyond its data and software platforms, CoStar operates a vast network of online marketplaces. These include prominent apartment marketing sites such as ApartmentFinder.com and ForRent.com; commercial property listing and advertising services through LoopNet (e.g., Premium Lister, Diamond, Platinum, and Gold Ads); and platforms dedicated to rural land sales like LandsofAmerica.com and LandAndFarm.com. It also facilitates the sale of operating businesses and franchises via sites like BizBuySell.com, and serves as an online auction platform for commercial real estate with Ten-X. Furthermore, CoStar supports the residential home-buying market through HomeSnap, an online and mobile software platform, and Homes.com, a comprehensive listings site for properties for sale. CoStar Group, Inc. was established in 1987 and maintains its corporate headquarters in Washington, D.C.

Arlington, VA
8,441 employees
www.costargroup.com
Real Estate / Real Estate - Services
Sector
Real Estate
Industry
Real Estate - Services
CEO
Andrew C. Florance
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