CoStar Group Inc. ($CSGP) Stock Forecast: Down 5.5% Today

What is CoStar Group Inc.?

CoStar Group (NASDAQ: CSGP) is a prominent real estate data company that offers information, analytics, and marketing services to the commercial real estate industry. Today, the stock witnessed a significant bearish movement in the market.

Why is CoStar Group Inc. going down?

CSGP stock is down 5.5% on Dec 15, 2025 18:36

• The copyright lawsuit transfer from New York City to Seattle could have introduced an element of uncertainty and legal expenses for CoStar, potentially impacting investor sentiment negatively.
• Despite Citibank reaffirming a Market Outperform rating on CoStar Group, the recent decrease in stock value and varying opinions from analysts, notably Wells Fargo expressing competition concerns, may have contributed to the downward trend.
• CoStar's appeal to the U.S. Supreme Court to review the antitrust conflict with Crexi, alleging monopolistic practices, might have sparked worries among investors about possible legal consequences and market rivalry.
• In summary, the confluence of legal uncertainties, competition worries, and mixed analyst feedback could have played a role in the bearish movement seen in CoStar's stock price today.

CSGP Price Chart

CSGP Technical Analysis

CSGP News

CoStar and Zillow copyright lawsuit moves to Seattle court

A federal judge has ruled that the copyright infringement lawsuit filed by CoStar against Zillow will be transferred from New York City to Seattle. The decision was influenced by the fact that the majority of witnesses and other related lawsuits for Zillow are located in the Seattle area, addressing convenience for both parties. CoStar had initially opposed the transfer but later withdrew its opposition.

https://www.housingwire.com/articles/costar-zillow-lawsuit-seattle/

CoStar Group stock rating reiterated at Market Outperform by Citizens

Citizens reiterated its Market Outperform rating on CoStar Group (NASDAQ:CSGP) with a $100 price target, despite a recent 15.93% stock decline over six months. The firm highlighted the real estate data company's expanding profit margins and noted that the nationwide median home price increased 2.4% year-over-year. Analysts have mixed views, with Needham maintaining a Buy rating and Wells Fargo lowering its price target due to competition concerns.

https://uk.investing.com/news/analyst-ratings/costar-group-stock-rating-reiterated-at-market-outperform-by-citizens-93CH-4417102

News | JPMorgan expands housing finance team; Transwestern adds research manager; EYA names multifamily chief

JPMorgan Chase appointed Karen Purcell to lead its community development banking team, focusing on affordable housing finance. Transwestern hired Jesse Tollison as a research manager for its Minneapolis office, and EYA named Robin Bettarel as head of multifamily development to expand its Washington D.C. pipeline. The article also details several other significant hires and promotions across various real estate firms.

https://www.costar.com/article/384368256/jpmorgan-expands-housing-finance-team-transwestern-adds-research-manager-eya-names-multifamily-chief

Check Point Software Technologies Ltd. $CHKP Holdings Boosted by Qube Research & Technologies Ltd

Qube Research & Technologies Ltd significantly increased its stake in Check Point Software Technologies Ltd. (NASDAQ:CHKP) by 1,886.1% in Q2, bringing its total to 253,003 shares valued at $55.98 million. This comes after Check Point exceeded earnings estimates, reporting $3.94 EPS against a $2.45 estimate and $677.5 million in revenue, leading to positive analyst sentiment with a consensus "Hold" rating and an average price target of $230.91. The company has also issued optimistic FY2025 guidance, projecting EPS between $11.22 and $11.32.

https://www.marketbeat.com/instant-alerts/filing-check-point-software-technologies-ltd-chkp-holdings-boosted-by-qube-research-technologies-ltd-2025-12-12/

CoStar Asks Supreme Court To Review Antitrust Dispute With Crexi

CoStar Group is petitioning the U.S. Supreme Court to review an antitrust dispute with competitor Crexi. The dispute stems from a 9th Circuit Court of Appeals ruling allowing Crexi's antitrust claims against CoStar to proceed, which argue CoStar's practices create an illegal monopoly by restricting listings on competing platforms and blocking access. This case has significant implications for antitrust law in digital marketplace sectors beyond commercial real estate.

https://www.bisnow.com/national/news/technology/costar-asks-supreme-court-to-review-antitrust-dispute-132321

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CoStar Group Inc. Price History

29.09.2025 - CSGP Stock was down 11.7%

• Despite the anticipation of robust third-quarter earnings results due to its strong portfolio of marketplaces, CoStar Group (CSGP) witnessed a bearish movement today.
• The comparison between CSGP and another stock in terms of value may have influenced investor sentiment, leading to the downward movement in CSGP's stock price.
• It's possible that investors are reevaluating their positions in CSGP based on the value comparison with another stock, causing a sell-off and contributing to the bearish trend observed today.

15.11.2025 - CSGP Stock was down 5.2%

• Despite a Market Outperform rating from Citizens, CoStar Group recorded a significant drop in its stock price. This decline could be linked to apprehensions highlighted by Wells Fargo about intensifying competition within the real estate data sector.
• The 2.4% year-over-year surge in the national median home price might have exerted a positive influence on CoStar's prospects. Nevertheless, broader economic conditions appeared to sway overall market sentiments.
• An ongoing antitrust dispute with competitor Crexi, which CoStar is attempting to bring to the Supreme Court, may have introduced uncertainties and legal risks, contributing to the downward momentum in the stock.
• Favorable news concerning increased home affordability and market equilibrium from Homes.com could have been somewhat overlooked amidst the legal hurdles and competitive landscape faced by CoStar, potentially contributing to the bearish trend in the market.

15.11.2025 - CSGP Stock was down 5.5%

• The copyright lawsuit transfer from New York City to Seattle could have introduced an element of uncertainty and legal expenses for CoStar, potentially impacting investor sentiment negatively.
• Despite Citibank reaffirming a Market Outperform rating on CoStar Group, the recent decrease in stock value and varying opinions from analysts, notably Wells Fargo expressing competition concerns, may have contributed to the downward trend.
• CoStar's appeal to the U.S. Supreme Court to review the antitrust conflict with Crexi, alleging monopolistic practices, might have sparked worries among investors about possible legal consequences and market rivalry.
• In summary, the confluence of legal uncertainties, competition worries, and mixed analyst feedback could have played a role in the bearish movement seen in CoStar's stock price today.

30.09.2025 - CSGP Stock was up 5.2%

• CoStar Group (CSGP) posted impressive Q3 earnings, surpassing expectations and demonstrating robust revenue growth fueled by its varied portfolio of marketplaces.
• Despite the favorable earnings, the stock price declined due to increased expenses, prompting concerns among investors regarding the company's short-term profitability.
• Investors with a long-term perspective have significantly profited from CSGP investments, as its stock has consistently outperformed the market for 15 years, highlighting its strong growth potential and market position.
• Comparing CSGP to another stock (DOX) in terms of value suggests that CSGP is viewed as a reliable investment choice, bolstering its current upward trend.

30.03.2025 - CSGP Stock was down 7.6%

• The decrease in CSGP stock value today may be linked to profit-taking by investors following the strong revenue growth in Q1 of 2025. This could suggest a temporary adjustment in the stock price after a period of success. Investors' reactions might also be influenced by factors beyond earnings, such as overall market trends or uncertainties about future growth potential.

23.06.2025 - CSGP Stock was up 6.2%

• CoStar Group (CSGP) displayed a significant bullish movement in the market today.
• The upturn is linked to expectations of robust second-quarter financial performance, supported by notable revenue growth in key divisions like Apartments.com, LoopNet, and Homes.com.
• Market sentiment is optimistic due to the company's consistent strong performance over the past 15 years, averaging a yearly return of 21.7%, which has fostered investor trust.
• Investors are enthusiastic about CoStar Group's future potential, underscored by its current market capitalization of $35.85 billion, indicating substantial confidence in the company's growth trajectory.

23.06.2025 - CSGP Stock was up 5.7%

• CoStar Group (CSGP) has experienced a strong uptrend today, possibly influenced by favorable market sentiment and investor confidence in the company's future prospects.
• Mention of CoStar Group's consistent outperformance of the market over the past 15 years, along with its impressive average annual return of 21.7%, underscores the company's sustained growth and profitability, bolstering investor confidence.
• Expectations of robust second-quarter earnings, supported by a diverse portfolio of marketplaces like Apartments.com, LoopNet, and Homes.com, are likely driving the positive movement as investors express optimism about the company's revenue growth and market positioning.
• In general, CoStar Group's solid performance and optimistic earnings projections have pushed the stock towards an upward trajectory, catching the interest of investors exploring opportunities in the commercial real estate industry.

12.07.2025 - CSGP Stock was down 5.1%

• The decline in CSGP today could be linked to profit-taking by investors following a period of strong performance.
• Market sentiment may have changed due to concerns about general market conditions or specific challenges within the commercial real estate sector.
• Investors could be reviewing their positions in CSGP given the evolving economic landscape or industry factors.
• Some investors might be shifting away from high-performing tech stocks like CSGP towards other sectors or asset classes.

22.06.2025 - CSGP Stock was down 0.3%

• The bearish movement in CSGP stock today could be attributed to investors' disappointment in the second-quarter earnings. Despite having a strong portfolio of marketplaces, the results may have fallen short of expectations, leading to a sell-off of the stock.

30.03.2025 - CSGP Stock was down 5.4%

• Despite its robust portfolio of marketplaces such as Apartments.com and LoopNet, CSGP witnessed a significant bearish movement during the latest trading session.
• The market's reaction to the company's Q1 earnings may have contributed to this downturn, suggesting potential discrepancies from analysts' projections.
• Investor apprehension regarding future growth prospects and external factors influencing the company's performance could be driving the negative trajectory of the stock.
• Despite possessing a strong portfolio, broader economic conditions or industry-specific obstacles could be influencing investor sentiment towards CSGP, resulting in the observed bearish trend.

19.01.2025 - CSGP Stock was up 5.6%

• CSGP experienced a strong bullish movement today.
• The anticipation of CoStar Group's Q4 earnings report, with expectations of a robust portfolio performance, likely contributed to the bullish market movement.
• Investors are optimistic about the company's marketplaces like Apartments.com, LoopNet, and Homes.com, which are expected to drive positive results in the fourth quarter.
• The positive outlook for CSGP's top-line growth in Q4 2024 could have fueled investor confidence and led to the bullish market movement.

19.01.2025 - CSGP Stock was up 5.4%

• Strong bullish movement in CSGP stock today.
• Q4 results show solid year-over-year top-line growth and expanding market reach.
• Despite rising expenses, the company's robust portfolio of marketplaces like Apartments.com and LoopNet likely contributed to the positive market sentiment.
• Investors are optimistic about CoStar Group's earnings and revenue potential, driving the stock price higher.