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CoStar Group

CSGP

Market cap $12B

29.67 USD

+0.09

0.3%

At close Updated Sep 10, 3:37 PM EDT

1 day

0.3%

5 days

-6.82%

1 month

-5.75%

3 months

-13.32%

6 months

-35.96%

Year to date

-54.83%

1 year

-65.62%

5 years

-67.09%

10 years

40.62%

About: CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.

Employees: 8,000

Real Estate Real Estate Services

News

Positive

Neutral

Negative

Sentiment 3-Months

Positive 32.8%

Neutral 62.3%

Negative 4.9%

Baron Partners Fund Q2 2026 Contributors And Detractors

Baron Partners Fund performed very well in the second quarter, gaining 16.61% (Institutional Shares). Top contributors include Space Exploration Technologies, Tesla, Red Rock Resorts, Hyatt Hotels and Birkenstock Holding. Top detractors include CoStar Group, Gartner, Guidewire Software, Morningstar and IDEXX Laboratories.

Baron Partners Fund Q2 2026 Contributors And Detractors

Baron Opportunity Fund Q2 2026 Top Contributors And Detractors

We continue to run a high-conviction portfolio with an emphasis on the secular trends cited and listed. In 2025 alone, SPCX executed over 170 launches, including 165 Falcon 9 missions, with individual boosters now achieving up to 35 re-flights. In the April quarter, Nvidia's data center revenue grew 92% year-over-year to $75.2 billion, with total revenue of $81.6 billion, up 85%; for its July quarter, the company guided for total revenue to grow at least another $9.5 billion sequentially.

Baron Opportunity Fund Q2 2026 Top Contributors And Detractors

Baron First Principles ETF Q2 2026 Portfolio Review

Space Exploration Technologies shares rose as the company successfully completed the largest initial public offering in history, raising more than $85 billion. Rising capital expenditure signals conviction in growth initiatives and strengthening Tesla's position as a leading vertically integrated physical AI company. FIGS, Inc. stock detracted from performance as shares slipped due largely to investor positioning.

Baron First Principles ETF Q2 2026 Portfolio Review

OpenAI Features Apartments.com in GPT-6 Astra Apartment-Hunting Demo

ARLINGTON, Va.--(BUSINESS WIRE)--Apartments.com, a CoStar Group (NASDAQ: CSGP) industry-leading brand, today highlighted the growing reach and capabilities of the Apartments.com app in ChatGPT as OpenAI launches GPT-6 Astra, its latest model for computer use and complex professional tasks. Renters can type @Apartments.com in ChatGPT and describe what they need in everyday language, from a two-bedroom apartment with a balcony and EV charging to a pet-friendly home within a specific budget. The a.

OpenAI Features Apartments.com in GPT-6 Astra Apartment-Hunting Demo

3 CEOs Are Buying Millions of Dollars of Their Beaten-Down Stocks

Insider purchases are one of many signals that investors can use to gauge the outlook of a stock. While insider buys are just one piece of a larger picture, they can be particularly notable when made by a company's top executive: the CEO.

3 CEOs Are Buying Millions of Dollars of Their Beaten-Down Stocks

Baron Focused Growth Fund Q2 2026 Portfolio Update

Baron Focused Growth Fund rebounded in Q2 from a disappointing start to the year, with the Fund gaining 13.26% compared with a gain of 24.02% for the Russell 2500 Growth Index. We remain steadfast in our commitment to long-term investing in competitively advantaged, growth businesses. As of June 30, 2026, the Fund owned 28 investments.

Baron Focused Growth Fund Q2 2026 Portfolio Update

Apartments.com Releases Multifamily Rent Growth Report for August 2026

ARLINGTON, Va.--(BUSINESS WIRE)--Today Apartments.com, an industry-leading online marketplace of CoStar Group, Inc. (NASDAQ: CSGP), published its latest report on multifamily rent trends for August 2026. U.S. apartment rents were essentially flat in August, with the national average falling -0.03% to $1,751 from July's upwardly revised level of $1,752. This slight decline ended the eight consecutive months of positive rent increases following a period of flat to declining monthly performance in.

Apartments.com Releases Multifamily Rent Growth Report for August 2026

Zacks Investment Research

Here's Why CoStar Group (CSGP) is a Strong Momentum Stock

Whether you're a value, growth, or momentum investor, finding strong stocks becomes easier with the Zacks Style Scores, a top feature of the Zacks Premium research service.

Here's Why CoStar Group (CSGP) is a Strong Momentum Stock

Baron Generational Growth Fund Q2 2026 Portfolio Activity

As of June 30, 2026, Baron Generational Growth Fund owned 15 investments. The top 10 holdings represented 104.8% of the Fund's net assets (88.1% of gross assets), which have been held for a minimum of three years. Red Rock Resorts, Inc.'s shares increased in Q2 as construction-related disruption dissipated and investors grew more optimistic about the benefits of the company's recent resort investments. Global hotel franchisor Choice Hotels International, Inc. contributed to performance as revenue per available room accelerated throughout the quarter and management highlighted an increase in new hotel contract signings.

Baron Generational Growth Fund Q2 2026 Portfolio Activity

Zacks Investment Research

CoStar (CSGP) Up 7.7% Since Last Earnings Report: Can It Continue?

CoStar (CSGP) reported earnings 30 days ago. What's next for the stock?

CoStar (CSGP) Up 7.7% Since Last Earnings Report: Can It Continue?

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