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

What is CoStar Group Inc.?

CoStar Group, Inc. (CSGP) recently exceeded earnings expectations and unveiled a $1.5 billion stock buyback strategy. The stock encountered significant bearish movement today.

Why is CoStar Group Inc. going down?

CSGP stock is down 5.5% on Mar 13, 2026 13:36

• Franklin Resources Inc. expanding its CoStar Group stake likely bolstered investor confidence initially, yet the subsequent bearish trend possibly reflects profit-taking following a period of favorable news.
• Despite a director's increased share purchase, evolving market sentiment might have spurred a sell-off.
• While the stock buyback scheme initially enthused investors, other market dynamics or profit worries may have overshadowed this positive development, prompting today's bearish shift.

CSGP Price Chart

CSGP Technical Analysis

CSGP News

CoStar Group, Inc. $CSGP Shares Acquired by Franklin Resources Inc.

Franklin Resources Inc. has increased its stake in CoStar Group, Inc. by 8.6% during the third quarter, now owning 3,736,949 shares worth over $315 million. Other institutional investors have also adjusted their positions in the technology company, with 96.60% of the stock owned by institutions and hedge funds. CoStar Group recently beat earnings expectations and announced a $1.5 billion stock buyback plan, while a director also purchased additional shares.

https://www.marketbeat.com/instant-alerts/filing-costar-group-inc-csgp-shares-acquired-by-franklin-resources-inc-2026-03-13/

Bamco Expands FactSet Stake to $838 Million as Financial Data Platform Drives Recurring Revenue

Bamco Inc. has significantly increased its stake in FactSet Research Systems (FDS), purchasing over 1 million additional shares, bringing its total holding to 2,888,845 shares valued at $838.31 million as of December 31, 2025. This expansion reflects Bamco's investment in FactSet's strong subscription-based business model, which provides essential financial data and analytics to institutional investors and generates consistent recurring revenue. FactSet's role as a critical partner for financial professionals ensures stable demand, making it an attractive long-term investment.

https://www.theglobeandmail.com/investing/markets/stocks/TSLA/pressreleases/727374/bamco-expands-factset-stake-to-838-million-as-financial-data-platform-drives-recurring-revenue/

Bamco Expands FactSet Stake to $838 Million as Financial Data Platform Drives Recurring Revenue

Bamco Inc. significantly increased its stake in FactSet Research Systems (FDS) during the fourth quarter of 2025, purchasing over 1 million shares and raising the total value of its holding to $838.31 million. This move highlights FactSet's strong recurring revenue model and its essential role as a provider of financial data and analytics to investment professionals. Despite FactSet's stock underperforming the S&P 500, its subscription-based services and embedded role in financial workflows suggest durable revenue for investors.

https://www.theglobeandmail.com/investing/markets/stocks/CSGP/pressreleases/727374/bamco-expands-factset-stake-to-838-million-as-financial-data-platform-drives-recurring-revenue/

Bamco Expands FactSet Stake to $838 Million as Financial Data Platform Drives Recurring Revenue

Bamco Inc. significantly increased its stake in FactSet Research Systems (FDS) by purchasing over 1 million shares, raising its total holding to $838.31 million as of December 31, 2025. This move highlights FactSet's robust subscription model and recurring revenue streams, positioning it as a key partner for institutional investors in the financial data and analytics sector. Despite FactSet's stock underperforming the S&P 500 in the past year, its essential role in investment decision-making through integrated data and analytics makes it a stable long-term asset.

https://www.theglobeandmail.com/investing/markets/markets-news/motley/727374/bamco-expands-factset-stake-to-838-million-as-financial-data-platform-drives-recurring-revenue/

NFL champ Travis Kelce brings star power to Six Flags' shrinking portfolio

NFL star Travis Kelce has partnered with Six Flags Entertainment Corp. as a brand ambassador, marking the company's efforts to boost its business amid a shrinking property portfolio. This partnership follows Kelce's collaboration with activist investor Jana Partners to improve Six Flags' stock and will involve marketing support and digital content creation. Six Flags is selling seven parks for $331 million to EPR Properties, reducing its portfolio to 34 parks across 23 North American sites by the end of the second quarter of 2026.

https://www.costar.com/article/393658268/nfl-champ-travis-kelce-brings-star-power-to-six-flags-shrinking-portfolio

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CoStar Group Inc. Price History

20.01.2026 - CSGP Stock was up 5.1%

• An upgrade of CoStar Group's stock to Buy by Jefferies has boosted investor sentiment, particularly regarding the future prospects of Homes.com, leading to a positive trajectory in CSGP's stock price.
• Recent staff reductions at CoStar amid investor pressures and a strategic shift towards cost-cutting initiatives and emphasis on AI and technology-driven offerings have likely bolstered investor confidence in the company's strategic vision, fostering positive expectations for its growth trajectory.
• Despite apprehensions surrounding CoStar's residential segment and recent stock price fluctuations, the company's cost-saving measures, substantial stock repurchase program, and robust EBITDA projections through 2026 have likely instilled confidence in investors, driving the current bullish market sentiment towards CSGP.

12.02.2026 - CSGP Stock was down 5.1%

• CSGP's bearish movement could be attributed to the clash with activist investor D.E. Shaw over the reporting of Homes.com's financial performance, creating uncertainty and negative sentiment among investors.
• The reduction in stake by Mackenzie Financial Corp and the criticism from D.E. Shaw regarding CoStar's reporting changes might have contributed to the downward pressure on CSGP's stock.
• Despite the clash with D.E. Shaw, the increased stake by Russell Investments Group Ltd. and the positive quarterly earnings report exceeding estimates indicate a mixed sentiment surrounding CSGP, with investors closely monitoring the ongoing disputes and financial performance.
• The broader market trend of stability in home prices could also be influencing investor sentiment towards real estate-related companies like CoStar Group.

04.02.2026 - CSGP Stock was up 5.6%

• The bullish movement in CoStar Group's stock (CSGP) can be attributed to the positive insider sentiment demonstrated by key executives and directors making significant purchases of company shares.
• The recent insider buying activity, including Chief Financial Officer Christian M. Lown and Director Rachel Glaser acquiring shares, signals confidence in the company's future prospects.
• Additionally, the awarding of restricted stock units to President of Marketplaces, Frederick G. Saint, further aligns his interests with the long-term performance of CoStar Group, potentially boosting investor confidence in the stock.
• Overall, the combination of insider purchases and strategic stock grants may have contributed to the bullish market movement of CoStar Group's stock today.

13.02.2026 - CSGP Stock was down 5.5%

• Franklin Resources Inc. expanding its CoStar Group stake likely bolstered investor confidence initially, yet the subsequent bearish trend possibly reflects profit-taking following a period of favorable news.
• Despite a director's increased share purchase, evolving market sentiment might have spurred a sell-off.
• While the stock buyback scheme initially enthused investors, other market dynamics or profit worries may have overshadowed this positive development, prompting today's bearish shift.

10.02.2026 - CSGP Stock was down 5.2%

• The bearish movement in CoStar Group's stock today can be attributed to activist scrutiny and criticism, raising concerns about the company's transparency and financial reporting practices.
• Pressure regarding reduced visibility into Homes.com's performance has raised doubts among investors about CoStar's future growth prospects and overall financial health.
• The increased volatility in CoStar's shares following demands for tighter oversight and accountability from management could lead to a reevaluation of the company's outlook by analysts and investors, potentially impacting future price targets.
• Despite strong financial indicators and recent positive developments, the lack of transparency and accountability highlighted in the activist scrutiny has overshadowed these positives, leading to the bearish market movement.

10.02.2026 - CSGP Stock was down 5.0%

• The bearish movement in CoStar Group's stock price can be attributed to the open letter from D. E. Shaw Group criticizing the company's lack of transparency regarding the financial performance of its Homes.com business segment. This move has raised concerns about accountability and shareholder value destruction.
• Despite positive news such as insider buying by Director Louise S. Sams and strong institutional investor interest, the market seems to be reacting more strongly to the transparency issues highlighted in the open letter.
• The bullish performance of SL Green Realty, driven by securing AI-related office leases in New York, highlights the growing demand for tech and AI-driven spaces, contrasting with CoStar Group's current challenges.
• Overall, the market sentiment towards CoStar Group appears to be influenced by concerns over transparency and accountability, overshadowing positive indicators such as insider buying and institutional interest.

10.02.2026 - CSGP Stock was down 5.0%

• Despite surpassing earnings projections and revealing a new share repurchase initiative, CoStar Group's stock price fell by 5% due to heightened geopolitical tensions in the Middle East, causing investors to adopt a cautious approach.
• Concerns emerged following critical comments from a significant investor about alterations in the company's financial reporting structure, casting doubts on transparency and future performance, subsequently impacting shareholder trust.
• Activist investor attention from The D. E. Shaw group regarding decreased transparency in financial reporting, notably concerning Homes.com metrics, challenged CoStar's reputation for transparency, potentially influencing investor confidence and future growth outlook.
• The demand from hedge fund D. E. Shaw for stricter oversight and accountability from management concerning Homes.com's performance may prompt analysts and investors to reassess their views on the company, possibly resulting in downward revisions of price targets.

03.02.2026 - CSGP Stock was up 6.0%

• Today's upward trend in CSGP stock is linked to CEO Andrew Florance's insider share purchase, which has had a notable impact on investor sentiment regarding the company's strategic focus on Homes.com and AI-driven expansion.
• Despite noted concerns regarding profitability stemming from high marketing and product expenses, the insider purchase has boosted market confidence in CoStar Group's potential for future growth.
• Furthermore, the recent announcement of a $1.50 billion share buyback initiative by the company has likely contributed to the stock's positive momentum, indicating management's faith in the business's enduring value.
• The broader market view of AI-centric firms like CoStar Group may have also been influenced positively by external developments, such as Blackstone's intentions to establish a publicly traded entity for data center acquisitions and News Corp's spotlight on digital growth and AI prospects at the recent Morgan Stanley conference.

03.02.2026 - CSGP Stock was up 5.7%

• The bullish movement in CSGP stock today could be attributed to the announcement of the CoStar Power Broker Award winners in the Greenville/Spartanburg market, showcasing the company's strong presence and success in the commercial real estate sector.
• Despite hitting a new 52-week low recently, the stock saw a positive uptick, possibly fueled by CEO Andrew Florance's rare insider share purchase, signaling confidence in the company's direction amidst concerns about profitability.
• The market may also be reacting positively to the news of institutional investors increasing their stakes in CSGP, despite a reduction in position by one investor, indicating varying sentiments among investors.
• Overall, the combination of strategic initiatives, insider confidence, and investor interest could have contributed to the bullish movement in CoStar Group's stock today.

25.01.2026 - CSGP Stock was down 11.5%

• An analyst lowered CoStar Group's price target to $44 and maintained an underweight rating, influencing the bearish sentiment.
• Despite a significant surge in full-year Adjusted EBITDA and strategic integration plans, the weaker Q1 guidance overshadowed the positive financial results.
• Another analyst adjusted the price target to $60 from $80, while several others also revised their targets downward, contributing to the unfavorable investor sentiment.
• The general market trend indicates that despite robust financial performance and growth strategies, concerns regarding future performance and guidance can have a substantial impact on stock prices.

25.01.2026 - CSGP Stock was down 8.8%

• CoStar Group's stock reached a new 52-week low due to an analyst downgrade and a lowered price target by a notable financial institution, highlighting concerns about the company's future performance.
• Although exceeding Q4 earnings expectations, CoStar encountered pessimism due to its weak Q1 guidance and potential impact of AI on future projections, resulting in a drop in sentiment and stock value.
• Despite the announcement of a $1.5 billion share repurchase program, the market's negative perception prevailed, leading to a significant downturn in the stock price.
• The amalgamation of the analyst downgrade, subdued Q1 outlook, and general market sentiment collectively influenced the bearish trend witnessed in CoStar Group's stock performance.

25.01.2026 - CSGP Stock was down 5.5%

• Weitz Investment Management Inc. reducing its stake in CSGP by 6.0% could have signaled reduced confidence in the company's future prospects, contributing to the bearish movement.
• The adjustment of the price target by Needham and other analysts to $60 from $80 following the unimpressive quarterly results forecast might have added selling pressure on the stock.
• Despite the surge in EBITDA and revenue growth, concerns about Homes.com profitability, commercial margins, and higher costs could have weighed on investor sentiment, leading to the bearish market movement.
• The mixed Q4 results, decreased net income, and the stock being considered 37% undervalued with risks related to future earnings and competition might have created uncertainty among investors, prompting the bearish trend.