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Compare · CSGP vs MMI

CSGP vs MMI

Side-by-side comparison of CoStar Group Inc. (CSGP) and Marcus & Millichap Inc. (MMI): market cap, price performance, sector, and recent activity on the wire.

Summary

  • CSGP operates in Real Estate, while MMI operates in Finance - the two are in different parts of the market.
  • CSGP is the larger of the two at $12.30B, about 11.1x MMI ($1.11B).
  • Over the past year, CSGP is down 62.2% and MMI is down 5.8% - MMI leads by 56.3 points.
  • CSGP has been more active in the news (11 items in the past 4 weeks vs 6 for MMI).
  • CSGP has more recent analyst coverage (25 ratings vs 2 for MMI).
PerformanceCSGP-62.16%MMI-5.83%
2025-06-20+0.00%2026-06-18
MetricCSGPMMI
Company
CoStar Group Inc.
Marcus & Millichap Inc.
Price
$30.13-0.95%
$29.23+0.83%
Market cap
$12.30B
$1.11B
1M return
-10.86%
+3.32%
1Y return
-62.16%
-5.83%
Industry
Real Estate
Real Estate
Exchange
NASDAQ
NYSE
IPO
1998
2013
News (4w)
11
6
Recent ratings
25
2
CSGP

CoStar Group Inc.

CoStar Group, Inc. provides information, analytics, and online marketplace services to the commercial real estate, hospitality, residential, and related professionals industries in the United States, Canada, Europe, the Asia Pacific, and Latin America. It offers CoStar Property Professional that provides inventory of office, industrial, retail, and multifamily, and student housing properties and land; CoStar COMPS Professional, which covers comparable commercial real estate sales information; CoStar Market Analytics to view and report on aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical tool that provides tenant information. The company also provides CoStar Lease Comps, a tool to capture, manage, and maintain lease data; CoStar Lease Analysis, a workflow tool; CoStar Public Record, a searchable database of commercially-zoned parcels; CoStar Real Estate Manager, a real estate and asset management, and lease accounting software; and CoStar Risk Analytics and CoStar Investment Analysis that provides market research, consulting and analysis, portfolio and debt analysis, and management and reporting services, as well as STAR Report that offers benchmarking and analytics services. In addition, it offers apartment marketing sites, such as Apartments.com, ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, Apartamentos.com, AFTER55.com, CorporateHousing.com, ForRentUniversity.com, Westside Rentals, and Off Campus Partners; LoopNet Premium Lister; LoopNet Diamond, Platinum, and Gold Ads; LandsofAmerica, LandAndFarm, and LandWatch for rural land for-sale; BizBuySell.com, BizQuest.com, and FindaFranchise.com for operating businesses and franchises for-sale; Ten-X, an online auction platform for commercial real estate; and HomeSnap, an online and mobile software platform. The company was founded in 1987 and is headquartered in Washington, the District of Columbia.

MMI

Marcus & Millichap Inc.

Marcus & Millichap, Inc., an investment brokerage company, provides real estate investment brokerage and financing services to sellers and buyers of commercial real estate in the United States and Canada. The company offers commercial real estate investment sales, financing, research, and advisory services for multifamily, retail, office, industrial, single-tenant net lease, seniors housing, self-storage, hospitality, medical office, and manufactured housing. It also operates as a financial intermediary that provides commercial real estate capital markets solutions, including senior debt, mezzanine debt, joint venture, and preferred equity, as well as loan sales and consultative/due diligence services to commercial real estate owners, developers, investors, and capital providers. In addition, the company provides various ancillary services, including research, advisory, and consulting services to developers, lenders, owners, real estate investment trusts, high net worth individuals, pension fund advisors, and other institutions. Marcus & Millichap, Inc. was founded in 1971 and is headquartered in Calabasas, California.

Latest CSGP

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