Last Update 29 Oct 25
Fair value Decreased 3.16%Analysts have lowered their fair value estimate for CoStar Group from $97.13 to $94.06, citing moderated sales growth expectations and a higher required return. However, they remain optimistic due to anticipated margin expansion and strong platform performance.
Analyst Commentary
Recent analyst perspectives on CoStar Group highlight a balanced view, acknowledging both the company's strengths and areas for caution as they evaluate the path to future growth.
Bullish Takeaways- Expectations for continued robust growth across core platforms, including sustained momentum in Apartments.com as well as stability in LoopNet and CoStar Suite.
- Analysts cite material margin expansion potential, driven by operating leverage as revenue grows, which supports increased EBITDA and profitability.
- Investment in Homes.com is seen as a catalyst for enhanced market position and returns. This is expected to contribute to low double-digit to low teens sales growth over the medium term.
- The medium-term sales growth outlook is supported by the diverse performance of CoStar’s platform portfolio, which helps maintain a premium valuation.
- Sales growth, while solid, is expected to moderate. This raises questions about the pace of future expansion and the ability to consistently meet elevated expectations.
- Execution on new initiatives, such as further integrating Homes.com, may face competitive or operational challenges that could impact the realization of projected returns.
- Valuation remains high compared to industry peers, making continued outperformance necessary to justify premium multiples.
- The potential for margin expansion is acknowledged, but analysts note that operating leverage will need to be sustained amid evolving market dynamics and ongoing investments.
What's in the News
- CoStar Group issued new earnings guidance and projects fourth quarter 2025 revenue between $885 million and $895 million, reflecting approximately 25% year-over-year growth at the midpoint. For the full year of 2025, revenue is expected in the range of $3.23 billion to $3.24 billion, representing an 18% increase (Key Developments).
- REcore Solutions LLC has filed a breach of contract claim against Homes.com and its parent company, CoStar, relating to unpaid fees on MLS data usage and agreement terms. The dispute centers on compensation owed to listing brokers for their data contributions and may delay payments to brokers until at least 2026 (Key Developments).
- REcore will terminate data feeds to Homes.com and HomesPro containing CRMLS listings as of November 1, 2025, unless the dispute is resolved. Listing brokers can still opt in individually to have their listings included without any cost or restrictions (Key Developments).
Valuation Changes
- Fair Value Estimate: Lowered from $97.13 to $94.06, reflecting a modest decrease in expected company value.
- Discount Rate: Increased slightly from 8.40% to 8.52%, indicating a higher required return for investors.
- Revenue Growth Projection: Reduced from 16.9% to 15.9%, suggesting a more conservative outlook for future top-line expansion.
- Net Profit Margin: Increased from 18.6% to 20.4%, highlighting improved profitability expectations.
- Future P/E Ratio: Decreased from 66.7x to 55.8x, signifying a reduction in anticipated valuation multiples.
Key Takeaways
- Robust user growth, tech innovation, and regulatory trends are strengthening CoStar's role as an industry standard, supporting sustainable pricing and expanding profit margins.
- Major investments in residential real estate, international expansion, and advanced analytics are unlocking new revenue streams and accelerating long-term growth opportunities.
- Aggressive investments, competitive pressures, and market uncertainties could increase expenses, compress profitability, and drive revenue volatility across key CoStar business segments.
Catalysts
About CoStar Group- Provides information, analytics, and online marketplace services in the United States, Canada, Europe, the Asia Pacific, and Latin America.
- Continued digitalization and demand for high-quality, data-driven real estate platforms are driving significant user growth, engagement, and record net new bookings across CoStar's core and expansion businesses, supporting ongoing double-digit revenue growth and higher recurring earnings.
- Market and regulatory trends continue to increase the need for transparency, fee disclosure, and real-time data, solidifying CoStar's role as a trusted industry standard and enabling sustainable pricing power, which should help further margin expansion.
- Aggressive investment in the Homes.com platform and rapid sales force expansion are enabling accelerated penetration in residential real estate, opening up a vast addressable market and creating meaningful opportunities for top-line growth and revenue diversification.
- Integration of AI-driven features, Matterport's 3D technology, and advanced analytics across platforms is increasing user engagement, enabling higher-value product offerings and upsells, and improving client retention-positioning the company for elevated margins and increased net income over time.
- CoStar's international expansion-through acquisitions (Domain in Australia), pan-European offerings, and market share gains-broadens its addressable market and underpins sustained long-term revenue growth and earnings scalability.
CoStar Group Future Earnings and Revenue Growth
Assumptions
How have these above catalysts been quantified?- Analysts are assuming CoStar Group's revenue will grow by 16.9% annually over the next 3 years.
- Analysts assume that profit margins will increase from 3.6% today to 18.6% in 3 years time.
- Analysts expect earnings to reach $866.2 million (and earnings per share of $1.49) by about September 2028, up from $104.2 million today.
- In order for the above numbers to justify the analysts price target, the company would need to trade at a PE ratio of 66.7x on those 2028 earnings, down from 358.4x today. This future PE is greater than the current PE for the US Real Estate industry at 25.8x.
- Analysts expect the number of shares outstanding to grow by 3.34% per year for the next 3 years.
- To value all of this in today's terms, we will use a discount rate of 8.4%, as per the Simply Wall St company report.
CoStar Group Future Earnings Per Share Growth
Risks
What could happen that would invalidate this narrative?- The rapid expansion of Homes.com's sales force and aggressive investments in marketing and headcount carry a risk of increased operating expenses outpacing revenue growth if the residential business fails to achieve anticipated adoption and margin improvement, potentially compressing net margins and profitability over time.
- Matterport, while integrated into CoStar, is not profitable and its growth rate has slowed; if the B2B pivot, increased investment, and planned global salesforce expansion do not yield expected results, this could be a continued drag on consolidated earnings and limit EBITDA growth.
- Competitive threats, particularly from Zillow's aggressive tactics, ongoing lawsuits, antitrust scrutiny, and pricing actions, may increase customer acquisition costs or pressure pricing at Apartments.com, Homes.com, and other segments, creating potential headwinds for revenue and earnings if market share gains are challenged.
- The office segment of commercial real estate remains weak due to high vacancies and negative absorption, and while there has been an uptick in transaction volumes, a persistent shift towards remote/hybrid work or a macroeconomic downturn could structurally shrink the CRE market CoStar relies on, negatively impacting long-term revenue growth.
- A continued reliance on subscription models and large-scale annual contracts exposes CoStar to risk of elevated churn or lower renewal rates should major economic swings, increased competition, or changes in technology commoditize their data offerings, resulting in revenue volatility and potential earnings disruptions.
Valuation
How have all the factors above been brought together to estimate a fair value?- The analysts have a consensus price target of $97.125 for CoStar Group based on their expectations of its future earnings growth, profit margins and other risk factors. However, there is a degree of disagreement amongst analysts, with the most bullish reporting a price target of $107.0, and the most bearish reporting a price target of just $70.0.
- In order for you to agree with the analyst's consensus, you'd need to believe that by 2028, revenues will be $4.7 billion, earnings will come to $866.2 million, and it would be trading on a PE ratio of 66.7x, assuming you use a discount rate of 8.4%.
- Given the current share price of $88.14, the analyst price target of $97.12 is 9.3% higher.
- We always encourage you to reach your own conclusions though. So sense check these analyst numbers against your own assumptions and expectations based on your understanding of the business and what you believe is probable.
How well do narratives help inform your perspective?
Disclaimer
AnalystConsensusTarget is a tool utilizing a Large Language Model (LLM) that ingests data on consensus price targets, forecasted revenue and earnings figures, as well as the transcripts of earnings calls to produce qualitative analysis. The narratives produced by AnalystConsensusTarget are general in nature and are based solely on analyst data and publicly-available material published by the respective companies. These scenarios are not indicative of the company's future performance and are exploratory in nature. Simply Wall St has no position in the company(s) mentioned. Simply Wall St may provide the securities issuer or related entities with website advertising services for a fee, on an arm's length basis. These relationships have no impact on the way we conduct our business, the content we host, or how our content is served to users. The price targets and estimates used are consensus data, and do not constitute a recommendation to buy or sell any stock, and they do not take account of your objectives, or your financial situation. Note that AnalystConsensusTarget's analysis may not factor in the latest price-sensitive company announcements or qualitative material.

