CSGP
T2CoStar Group, Inc.
OverviewCoStar Group offers global real estate data, analytics, and online marketplaces. Its commercial segment provides property research and advertising, while reside
CoStar Group offers global real estate data, analytics, and online marketplaces. Its commercial segment provides property research and advertising, while residential platforms like Apartments.com and Homes.com connect users with listings. Q1 2026 revenue was nearly evenly split between commercial ($472M) and residential ($425M). They serve real estate professionals, owners, and lenders, leveraging AI.
- What They Do (Plain English & Analogies)
- CoStar Group acts like the 'Bloomberg Terminal' for the real estate world, offering in-depth information and sophisticated analytics primarily for commercial properties to professionals. Beyond this, they operate a vast 'digital shopping mall' for various property types, connecting individuals and businesses looking to buy, sell, or rent. This encompasses everything from commercial offices, retail spaces, and industrial properties to apartments, houses for sale, undeveloped land, and even businesses for sale. The company gathers immense amounts of data, employing researchers and advanced technology, including artificial intelligence, to provide critical insights and streamline transactions across the global real estate market. They also provide cutting-edge 3D digital twin technology through Matterport, enabling users to create immersive virtual tours of properties.
- Very Brief History
- Founded in 1987 by Andy Florance, CoStar began by digitizing commercial real estate data in Washington, D.C. The company went public in 1998 and expanded significantly through strategic acquisitions over two decades, including LoopNet (commercial listings) in 2012 and Apartments.com (multifamily rentals) in 2014. A major strategic shift into the residential real estate market occurred with the 2021 purchase of Homes.com, positioning the company to challenge established residential portals like Zillow. More recently, CoStar Group acquired Matterport in 2025 and OnTheMarket in 2023, further enhancing its digital twin capabilities and expanding its international residential presence.
- "Street Stereotype"
- CoStar Group is generally perceived as a 'Ruthless Compounder' – an exceptionally well-managed, high-margin company fortified by a robust data moat. However, it also carries a reputation for being highly litigious and an aggressive spender, particularly concerning its multi-billion dollar marketing investments aimed at capturing market share in the residential sector with Homes.com. The current market discussion largely revolves around whether this substantial residential investment represents a visionary strategic move or a costly 'ego trip,' although the recent earnings call indicated that 'the activist distraction is behind us,' allowing for a more focused pursuit of growth and EBITDA.
- Subsidiaries On Linked In*
- CoStar — Main commercial information and analytics platform; LinkedIn: costar-group
- Apartments.com — Leading multifamily rental marketplace; LinkedIn: apartments.com
- LoopNet — Commercial real estate marketplace; LinkedIn: loopnet
- Homes.com — Residential homes for sale and rent marketplace; LinkedIn: homes.com
- Matterport — 3D spatial data and digital twin technology; LinkedIn: matterport
- Ten-X — Online auction platform for commercial real estate, now integrated with LoopNet; LinkedIn: ten-x
- OnTheMarket — UK residential property portal; LinkedIn: onthemarket
- Domain Group — Australian digital property portal and real-estate industry business; LinkedIn: domain-group
- STR — Global leader in hotel data benchmarking and analytics; LinkedIn: str-global
- Business Immo — French commercial real estate news and information; LinkedIn: business-immo
- BureauxLocaux — France's specialized commercial real estate marketplace; LinkedIn: bureauxlocaux
- Land.com — Umbrella for rural land marketplaces (LandsofAmerica, LandAndFarm, LandWatch); LinkedIn: land.com
- BizBuySell — Largest network for buying or selling a business (includes BizQuest, FindaFranchise); LinkedIn: bizbuysell
- CoStar Real Estate Manager — Real estate lease administration, portfolio management, and lease accounting software; LinkedIn: costar-real-estate-manager
- Customer Sectors & Example Clients
- CoStar Group serves a diverse range of professionals across multiple real estate sectors. In **Commercial Real Estate (CRE)**, their customers include brokerage firms, property managers, institutional investors, lenders, and regulators. Notable clients in this sector include global brokerage giants like CBRE, JLL, and Cushman & Wakefield; institutional investors such as Blackstone; and major lenders like JP Morgan Chase and Wells Fargo. For **Residential Real Estate**, their clientele spans real estate agents, homebuilders, mortgage bankers, retailers, retail center owners, independent property owners, and large residential brokerages like eXp Realty. They also serve 663 homebuilders. In the **Hospitality** sector, their data and analytics are utilized by major hotel brands, operators, and owners worldwide. Additionally, their platforms cater to **Business Sales** professionals, including business brokers and individuals involved in buying or selling businesses.
- New Customers / Segments They'Re Targeting
- CoStar Group is actively targeting several new customer segments and expanding its offerings. They are focusing on **new homebuilders** through 'CoStar new homes' and Homes.com, tracking new residential construction from planning to delivery and serving homebuilders, mortgage bankers, retailers, and retail center owners. The company is also expanding 'CoStar debt solutions' to serve over 500 financial institutions, with plans to launch **CRE debt benchmarking** and a full workflow solution for loan origination and underwriting, targeting a broader spectrum of **lenders**. For the residential market, they are extending the full Apartments.com feature set into Homes.com to empower **independent single-family home owners/renters** to list their properties across both platforms. Internationally, CoStar is cross-selling into 32,000 French CRE professionals from its Business Immo acquisition as CoStar France launches, and rapidly building proprietary property data for new CoStar and LoopNet launches in Australia, targeting **international CRE professionals**. Furthermore, STR launched **profitability benchmarking for hotels**, attracting 750 hotel subscribers, indicating a new service offering within the hospitality sector.
- Supply Chain And Sourcing Geographies
- The provided text and transcript do not explicitly detail CoStar Group's supply chain or sourcing geographies for physical products, with the exception of Matterport's cameras. Matterport produces cameras used for 3D mapping, and the transcript mentions the Matterport Pro3 camera and the development of a Pro4 camera. However, no specific manufacturing or sourcing geographies for these cameras are provided. CoStar's core business primarily involves digital products and services, such as data, analytics, and online marketplaces, which do not have a traditional physical supply chain.
- Sales Geographies And Expansion Plans
- CoStar Group currently operates and sells its products and services across a wide range of geographies, with ambitious expansion plans. In the **United States**, all major segments including CoStar, Apartments.com, LoopNet, Homes.com, Land.com, BizBuySell, Ten-X, Matterport, and STR have extensive operations. They also have a significant presence in **Canada**, where CoStar Canada revenue grew 22% year-over-year and LoopNet paid listings increased by 35%. The **United Kingdom** is another key market, with CoStar U.K. showing accelerated growth, LoopNet paid listings up 63%, and OnTheMarket serving as a leading residential portal. In **Europe**, LoopNet has launched in France and Spain, and CoStar France is set to launch in Q2. The company plans to extend LoopNet to Germany and other European markets, aiming to establish the only pan-European CRE data and analytics platform. **Australia** is a growing market, with Domain Australia delivering strong Q1 results, and CoStar rapidly building proprietary property data for the planned launch of CoStar and LoopNet in Australia in Q3 and Q4. The company's broader reach also includes the **Asia Pacific and Latin America** regions, as indicated in its company description.
- How Key Themes May Help/Hurt
- The 'AI '25: Data Owners' theme is highly beneficial for CoStar Group. As a prominent 'Data Owner' with a massive, proprietary real estate database, CoStar possesses a defensible competitive advantage in the AI era. The company is actively leveraging this by reallocating 50% of Homes.com's software development to AI-powered features like 'Smart Search,' 'Homes AI,' and 'Apartments AI.' This integration of AI into existing workflows, such as AI lease abstraction with Visual Lease and CoStar Real Estate Manager, is driving tangible productivity gains, improving user engagement, and enhancing lead conversion. Matterport's digital twin technology is also a critical component for future AI innovation across the entire CoStar Group. This strategic focus on monetization through data-informed automation and decision-making aligns perfectly with the theme's emphasis on real-world ROI. While less likely to be significantly hurt given its robust data moat, potential risks include the commoditization of general AI models if they can aggregate real estate data more cheaply, which could put pressure on CoStar's expensive proprietary research model. Additionally, the widespread adoption of agentic AI may face bottlenecks due to human and organizational inertia, and the increasingly complex global regulatory landscape concerning data privacy and algorithmic accountability could pose compliance and legal challenges.
3 Main Long-Term Bull Details
- Unrivaled Data Moat and AI Leadership: CoStar possesses a 40-year proprietary, verified real estate data moat that is exceptionally difficult for competitors to replicate. The company is aggressively leveraging this by dedicating significant resources to AI-powered features like Smart Search, Homes AI, and Apartments AI, which are driving superior consumer engagement and lead conversion. Furthermore, the deep integration of Matterport's digital twin technology is unlocking substantial future AI innovation across all CoStar platforms.
- Residential Market Disruption with 'Your Listing, Your Lead' Model: Homes.com is rapidly gaining significant traction with its agent-friendly 'Your Listing, Your Lead' business model, which offers extraordinary returns on investment for subscribing agents and is accelerating both membership growth and monetization. This strategy directly challenges established incumbents like Zillow by aligning with agents, positioning CoStar to capture a larger and more profitable share of the massive residential market.
- Global Expansion and High-Margin Scalability: CoStar is successfully exporting its highly profitable commercial business model and expanding its residential platforms into international markets, demonstrating strong growth in the UK, Canada, and Australia, with new launches planned for France and Germany. This global diversification, combined with the inherent scalability of its digital platforms, provides access to a massive addressable market and a robust 'war chest' generated by its high-margin commercial segment to fund further strategic growth initiatives.
3 Main Long-Term Bear Details
- Residential 'Money Pit' Risk: Despite its rapid growth and improving profitability, the residential segment remains a substantial 'land grab' that necessitates sustained, heavy marketing expenditures. There is an inherent risk that consumer behavior may not shift sufficiently or quickly enough from established incumbents, potentially leading to significant margin compression if subscriber retention or agent adoption rates slow down.
- Cyclical CRE Exposure and Potential Pricing Pressure: While CoStar's core commercial business has demonstrated resilience, it is not immune to prolonged volatility within the commercial real estate sector. A deeper or extended downturn in office or retail valuations could eventually pressure renewal rates. Additionally, the 'asset-based pricing' strategy for LoopNet could face pushback from commercial clients facing cash constraints, potentially limiting the commercial segment's ability to effectively subsidize residential expansion.
- Regulatory/Legal and Intensifying Competitive Headwinds: CoStar's aggressive acquisition strategy and dominant market position frequently attract regulatory scrutiny and legal challenges. Furthermore, if key competitors like Zillow successfully navigate their ongoing legal challenges and effectively adapt their business models, or if new tech-native entrants discover more cost-effective methods to aggregate real estate data, CoStar's competitive advantages could diminish over time.
- Competitors And Differentiation
- CoStar Group faces competition across its diverse business segments. In **residential portals**, key competitors include Zillow, Realtor.com, and Redfin in the U.S., and REA Group in Australia. CoStar differentiates Homes.com with its 'Your Listing, Your Lead' model, which directly aligns with listing agents by not diverting leads, allowing agents to connect directly with buyers. They also emphasize superior consumer engagement driven by Homes AI and Matterport 3D tours. For **commercial real estate data and marketplaces**, CoStar competes with other data providers and local marketplaces. Its primary differentiation stems from an 'unrivaled data moat' built over 40 years through extensive proprietary, verified data and a large research team. LoopNet aims to differentiate through its asset-based pricing strategy and its expanding global network effects. In the **UK residential portal market**, competitors include Zoopla and Rightmove. OnTheMarket differentiates by having more new home listings than Rightmove and plans for integration into the Homes.com software environment. For **3D spatial data**, Matterport competes with other 3D capture and visualization companies. Its differentiation lies in its 'digital twin' technology, AI-powered insights, and innovations such as Matterport Exteriors with X-ray, which are being integrated across CoStar's various platforms.
- Recent Performance & What The Market'S Focused On
- CoStar Group reported an 'exceptional' Q1 2026, marking its 60th consecutive quarter of double-digit revenue growth. Adjusted EBITDA doubled year-over-year to $132 million, significantly exceeding guidance, and the company is now on track for its highest full-year adjusted EBITDA in its history. Q1 net bookings increased by 20% year-over-year, reaching $67 million. Homes.com revenue surged by 58% year-over-year to $26 million, with accelerating membership growth and monetization, and the Residential segment is projected to achieve profitability in Q2 2026. The company reaffirmed its full-year 2026 revenue guidance but raised its adjusted EBITDA and adjusted EPS guidance, attributing this to strong Q1 performance and anticipated personnel expense efficiencies driven by AI. The market is currently focused on the sustained acceleration of Homes.com's revenue and its path to profitability, the ongoing ramp-up in sales force productivity across all of CoStar's brands, the successful integration and monetization of AI-powered features, and the impact of its international expansion efforts. Management also noted that the 'activist distraction is behind us,' allowing for more focused energy on core business growth.
- Revenue Segments And Estimated Mix
- Commercial — Mix: ~52.6%; Source: Q1 2026 transcript; Trend: Increased 15% year-over-year, 7% organic growth
- Residential — Mix: ~47.4%; Source: Q1 2026 transcript; Trend: Increased 32% year-over-year, 13% organic growth, expected to reach profitability in Q2 2026
- CoStar (within Commercial) — Mix: ~36.9% of total revenue; Source: Q1 2026 transcript; Trend: Grew 9% year-over-year, strong double-digit international growth
- Apartments.com (within Residential) — Mix: ~34.8% of total revenue; Source: Q1 2026 transcript; Trend: Grew 10% year-over-year, 15th consecutive quarter of double-digit revenue growth
- LoopNet (within Commercial) — Mix: ~9.5% of total revenue; Source: Q1 2026 transcript; Trend: Grew 16% year-over-year, 11% organic growth
- Domain Australia (within Residential) — Mix: ~7.6% of total revenue; Source: Q1 2026 transcript; Trend: Core Residential revenue grew 11% year-over-year on a pro forma basis
- Other Commercial (primarily Matterport) — Mix: ~6.2% of total revenue; Source: Q1 2026 transcript; Trend: Increased 81% year-over-year, Matterport subscription revenue up 19%
- Homes.com (within Residential) — Mix: ~2.9% of total revenue; Source: Q1 2026 transcript; Trend: Grew 58% year-over-year
- BizBuySell (within Residential) — Mix: ~1.0% of total revenue; Source: Q1 2026 transcript; Trend: Revenue of $8.8 million in Q1
- Product Brands
- CoStar Property
- CoStar COMPS
- CoStar Market Analytics
- CoStar Tenant
- CoStar Lease Comps and Analysis
- CoStar Lease Analysis
- CoStar Public Record
- CoStar Real Estate Manager
- CoStar Risk Analytics
- CoStar Investment
- CoStar rent benchmark
- CoStar new homes
- CoStar debt solutions
- Apartments.com
- ApartmentFinder.com
- ForRent.com
- ApartmentHomeLiving.com
- WestsideRentals.com
- AFTER55.com
- CorporateHousing.com
- ForRentUniversity.com
- Apartamentos.com
- Off Campus Partners
- Apartments AI
- LoopNet
- LoopNet Premium Lister
- LoopNet Diamond Ads
- LoopNet Platinum Ads
- LoopNet Gold Ads
- LandsofAmerica.com
- LandAndFarm.com
- LandWatch.com
- Land.com
- BizBuySell.com
- BizQuest.com
- FindaFranchise.com
- Ten-X
- HomeSnap
- Homes.com
- Homes AI
- Matterport
- Matterport Exteriors with X-ray
- OnTheMarket
- Domain
- commercialrealestate.com.au
- allhomes.com.au
- STR
- Business Immo
- Belbex
- BureauxLocaux
- Visual Lease
- THOMAS DAILY
Bull / Bear DetailsCoStar Group is rapidly evolving from a commercial data leader into a global residential and AI powerhouse. As of 2026-05-03, its high-margin commercial busines
Thesis
CoStar Group is rapidly evolving from a commercial data leader into a global residential and AI powerhouse. As of 2026-05-03, its high-margin commercial business continues to fund aggressive residential expansion, with Homes.com demonstrating exceptional agent ROI and consumer engagement via AI. The company's proprietary data moat and successful international growth reinforce a compelling bullish case, further strengthened by Zillow's sustained market share losses.
Bull case
Homes.com is proving its disruptive "Your Listing, Your Lead" model, delivering an average 11x ROI for member agents and achieving 58% year-over-year revenue growth. With over 35,000 subscribers and a $106 million annual run rate, it's the fastest organic revenue build for CoStar, validating its market share capture and monetization strategy, including planned price increases.
CoStar's deep investment in AI is yielding significant competitive advantages and user engagement. Homes AI users spend 4x longer on site, and Apartments.com's Smart Search drives 94% more time and 63% more listings viewed. Matterport's integration across platforms further enhances proprietary data and AI innovation, driving conversion and differentiation.
The company is executing a robust global expansion and product diversification strategy. International markets like the U.K. and Canada are accelerating, with France and Australia launches imminent. New offerings like CoStar Rent Benchmark, New Homes, and Debt Solutions, alongside LoopNet's successful asset-based pricing, expand the addressable market and revenue streams, with Residential segment profitability expected in Q2 2026.
Bear case
Despite Homes.com's strong performance, the residential segment remains a capital-intensive "land grab." Sustained, heavy marketing and sales force expansion are required to maintain momentum, risking margin compression if agent adoption or retention slows. The prior "activist distraction" also highlights the sensitivity to investment levels and execution risks in this competitive market.
While commercial sales show improvement, the core commercial business remains exposed to potential prolonged volatility in the broader CRE sector. A significant downturn in office or retail valuations could pressure renewal rates and limit the commercial segment's ability to consistently subsidize aggressive residential and international expansion efforts.
The long-term ROI of all AI features across the entire platform, while showing early promise, is not fully proven. The risk persists that general-purpose AI models or new tech-native entrants could find cheaper ways to aggregate real estate data, potentially pressing CoStar's expensive proprietary research model and eroding its competitive differentiation over time.
Bull / Bear Case
- Bear Case
- Despite strong Q1 results, CoStar's residential segment remains a capital-intensive 'land grab' requiring sustained, heavy marketing and sales force expansion, which risks margin compression if agent adoption or retention falters. The stock's underperformance post-earnings suggests market skepticism regarding the high investment levels and execution risks. While some commercial real estate sectors show recovery, overall market volatility, particularly in office, could pressure core commercial renewal rates and limit the segment's ability to subsidize residential expansion. Furthermore, the long-term ROI of all AI features is not fully proven, and the company faces potential threats from general-purpose AI models or new tech-native entrants. Overall rental search demand remains soft, and competitor Zillow continues to see declining unique visitors, highlighting the competitive pressures.
- Bull Case
- CoStar Group delivered an exceptional Q1 2026, marking its 60th consecutive quarter of double-digit revenue growth (23% Y/Y) and doubling adjusted EBITDA, putting it on track for a record full year. Homes.com is proving highly disruptive, achieving 58% Y/Y revenue growth, an 11x average ROI for member agents, and is projected to reach profitability in Q2 2026. The company's aggressive AI integration, exemplified by Homes AI users spending 4x longer on site, and Matterport's differentiating technology, is driving superior user engagement and conversion. CoStar is also executing a robust global expansion, with strong international growth and imminent launches in key markets like France and Australia, while diversifying revenue streams with new offerings in rent benchmarking, new homes, and debt solutions. A significant share buyback program further signals confidence.
- More Compelling & Why
- Bear. Despite strong Q1 performance and management's bullish outlook, CoStar's EV/EBITDA (TTM) of 52.05x is significantly higher than peers like Zillow's forward EV/EBITDA of 12.43x, indicating a stretched valuation that prices in substantial future success. The stock's underperformance post-earnings reinforces market skepticism regarding the high cost and execution risks of the residential 'land grab.' My view would flip if CoStar consistently demonstrates accelerated, profitable growth in the residential segment, leading to a sustained expansion of consolidated Adjusted EBITDA margins beyond current projections, thereby justifying its premium valuation.
Key Factors
| Key Factor | Why It Matters | What To Watch | What It Signals | Where/How To Track | Free Alt Data | Paid Alt Data |
|---|---|---|---|---|---|---|
| AI Engagement and Product Launches (Homes AI / Apartments AI) | Strong AI engagement drives user retention, lead conversion, and competitive differentiation, validating CoStar's "Data Owners" AI thesis and its ability to leverage proprietary data for superior user experience. | Continued reporting of Homes AI user engagement metrics (e.g., time on site, searches, favorited properties, lead submissions) and the successful launch and initial performance metrics of Apartments AI (e.g., user adoption, engagement, lead quality) following the Apartmentalize trade show in June. | Bullish if Homes AI engagement metrics continue to show significant outperformance (e.g., 4x longer time on site) and Apartments AI launch is met with strong user adoption and positive early metrics. Bearish if AI engagement metrics plateau or decline, or if Apartments AI launch does not generate significant positive impact. | Company earnings calls and press releases (Q2 2026 earnings call, expected July 21, 2026), industry trade show reports (Apartmentalize in June). | Google Trends: "Homes AI", "Apartments AI", "CoStar Smart Search". Industry blogs and news for coverage of Apartmentalize. | Similarweb: Homes.com and Apartments.com unique visitors, session duration, bounce rate, and search volume for AI-related terms. |
| Residential Segment Adjusted EBITDA Profitability | Achieving profitability in the Residential segment is a critical milestone, validating the massive investment in Homes.com and signaling a shift from a "money pit" to a scalable, high-growth engine, which is key for a rerating. | Reported Adjusted EBITDA for the Residential segment in Q2 2026. Management guidance expects it to be positive, ranging between breakeven and $10 million. | Bullish if Q2 2026 Residential Adjusted EBITDA is positive and at or above the guided range. Bearish if it remains negative or significantly below the guided range. | Company earnings calls and press releases (Q2 2026 earnings call, expected July 21, 2026). | ||
| LoopNet Asset-Based Pricing Impact | The new pricing model is designed to drive more listings, traffic, and revenue by better matching pricing to asset size and value, potentially accelerating LoopNet's organic growth and strengthening its market position. | Reported growth in paid listings (especially silver listings at different price points), average revenue per listing, and organic revenue growth for LoopNet in Q2 2026 and subsequent quarters. | Bullish if paid listings volume (especially silver listings >$300/month and <$40/month) continues to show strong growth (e.g., >650% and >1100% respectively from February to March levels) and LoopNet's organic revenue growth accelerates beyond Q1's 11%. Bearish if growth rates decelerate or if the new pricing model faces significant pushback. | Company earnings calls and press releases (Q2 2026 earnings call, expected July 21, 2026). | Thinknum: LoopNet listing count changes by price tier. | |
| Full Year Adjusted EBITDA Guidance Update | An upward revision to full-year Adjusted EBITDA guidance indicates improved operational efficiency, cost savings (partially from AI), and confidence in future profitability, directly impacting investor sentiment and valuation. | Any further revisions (up or down) to the full-year 2026 Adjusted EBITDA guidance in subsequent earnings reports. The current range is $780 million to $820 million. | Bullish if full-year 2026 Adjusted EBITDA guidance is further increased in future quarters. Bearish if guidance is lowered or remains flat despite strong Q1 performance. | Company earnings calls and press releases (Q2 2026 earnings call, expected July 21, 2026). | ||
| Homes.com Net New Bookings and Subscription Price Increase | This factor is crucial for validating the Homes.com investment thesis, demonstrating subscriber growth, monetization capability, and the ability to capture value from agents. The price increase directly impacts ARPU and future revenue. | Q2 2026 Homes.com net new bookings, number of agent subscribers, and the impact of the May 1st price increase on new customer acquisition and renewal rates. | Bullish if Q2 Homes.com net new bookings exceed Q1's $11 million, subscriber count continues to grow significantly (e.g., >4,300 new members), and the price increase does not materially slow adoption. Bearish if bookings stagnate or decline, or if the price increase negatively impacts subscriber growth. | Company earnings calls and press releases (Q2 2026 earnings call, expected July 21, 2026). | Google Trends: "Homes.com agent subscription", "Homes.com reviews". Real estate agent forums/social media for sentiment on Homes.com value and pricing. | Similarweb: Homes.com unique visitors and engagement. Apptopia/Sensor Tower: Homes.com app downloads and usage. |
Key Reported Metrics
| Metric | Why It Matters | Last Period |
|---|---|---|
| Homes.com Revenue | Homes.com is CoStar's fastest-growing segment and central to its residential strategy. Continued strong revenue growth, especially after recent price increases and AI integration, will validate its market disruption and monetization efforts, driving overall company expansion. | 58% |
| Net New Bookings | As a primary leading indicator, strong net new bookings demonstrate the sales team's effectiveness and the traction of new products across all segments. It's essential for future revenue growth and validates the company's overall expansion strategy and sales force productivity. | 20% |
| Adjusted EBITDA | This metric is crucial as it tracks overall profitability and the impact of aggressive residential expansion. Positive Residential Adjusted EBITDA in Q2 would signal a significant turning point for the segment's profitability, validating the investment strategy and moving towards historical high-margin profile. | 100% |
Key QuestionsCan Homes.com sustain its accelerated subscriber growth and booking momentum, particularly with the planned subscription price increase, and further capitalize
Can Homes.com sustain its accelerated subscriber growth and booking momentum, particularly with the planned subscription price increase, and further capitalize on Zillow's declining unique visitors to gain material market share?
- Question 2
Will CoStar's continued investment and deployment of AI-driven features, such as Homes AI and the upcoming Apartments AI, translate into sustained, measurable improvements in user engagement, lead conversion, and operational efficiencies, contributing to margin expansion?
- Question 3
Can the core commercial information and LoopNet segments sustain their strong revenue growth and high EBITDA margins, particularly with LoopNet's new asset-based pricing, to drive overall company profitability and support continued strategic investments?
Rerating Thresholds
| Metric | What'S Needed For Rerating | Why It Matters | Earnings Date |
|---|---|---|---|
| Residential Revenue | Residential Revenue growth must accelerate to 45-50% y/y (surpassing the current 41% rate) with segment revenue exceeding $85 million for the quarter. Additionally, management must provide 2026 guidance showing residential marketing spend stabilizing or declining as a percentage of revenue, proving the 'J-curve' profitability turn. | Hitting this threshold validates the ROI on CoStar's $1 billion+ annual marketing spend and proves the 'Your Listing, Your Lead' model can successfully capture market share from Zillow. It shifts the narrative from a dilutive 'money pit' to a scalable, high-growth engine, justifying a higher EV/EBITDA multiple. | 2026-02-24 |
| Adjusted EBITDA | To trigger a rerating, CoStar must report a consolidated Adjusted EBITDA margin narrowing the current -32% deficit to better than -15%, alongside FY2026 guidance for Adjusted EBITDA exceeding $500 million. This requires demonstrating that Homes.com marketing spend has plateaued while residential subscription revenue grows 30%+ y/y, proving the 'land grab' phase is transitioning to a 'harvest' phase. | Hitting this threshold confirms the residential 'land grab' is yielding scalable results without requiring infinite capital. It reassures investors that the high-margin commercial business (47% margins) will no longer be entirely offset by residential losses, allowing the stock to trade on a recovery-based EBITDA multiple rather than a discounted revenue multiple. | 2026-02-24 |
Earnings Transcript Summary
· 2026Q1 Earnings Call
| 3 Things Management Is Most Focused On | Call Takeaway & Tone | Prior Quarter'S Y/Y Growth By Segment | 3 Things Analysts Most Pressed On (And Mgmt Responses) | Revenue Segments |
|---|---|---|---|---|
| 1. Delivering exceptional financial performance: Management highlighted Q1 2026 as an exceptional quarter with the 60th consecutive quarter of double-digit revenue growth, adjusted EBITDA doubling, and being on track for the highest full-year adjusted EBITDA in CoStar Group's history. 2. Homes.com investment and AI innovation: Management emphasized that the Homes.com investment is delivering as promised, with extraordinary returns for member agents, high consumer engagement with Homes AI (4x longer time on site for AI users), and Homes.com being the fastest-growing residential portal in the U.S. 3. Driving EBITDA growth and margin expansion: With the 'activist distraction' behind them, management is now more focused than ever on growing EBITDA, improving sales force productivity, and leveraging AI to find efficiencies and accelerate customer onboarding and support. | The overall takeaway of the call was highly positive and confident. CoStar Group delivered strong Q1 2026 results, exceeding guidance for adjusted EBITDA and demonstrating robust revenue growth across segments. Management emphasized the successful execution of the Homes.com strategy, highlighting significant agent ROI and consumer engagement driven by Homes AI. The tone was forward-looking, with a clear focus on accelerating EBITDA growth, leveraging AI across all platforms, and expanding internationally, particularly now that 'activist distraction' is behind them. | Total Revenue: 27% year-over-year. Commercial segment (as a group): 20% year-over-year. CoStar revenue (CoStar Suite): 10% year-over-year. Residential revenue: 35% year-over-year. Apartments.com: 11% year-over-year. Homes.com: 63% year-over-year (full year 2025 revenue growth). CoStar Canada: 21% year-over-year. Specific Q4 2025 year-over-year growth rates for LoopNet, Land.com, Domain Australia, CoStar U.K., and Other commercial (Matterport) were not explicitly detailed in the prior quarter's earnings summary. | 1. Bookings trends and translation to revenue: Analysts questioned if the $67 million in net new bookings was in line with expectations and how bookings translate into revenue growth, especially given sequential declines. Management responded that Q1 bookings were broadly in line, reaffirmed revenue and increased EBITDA guidance, explained the components of subscription vs. non-subscription revenue, and reiterated commitment to 2028 and 2030 EBITDA targets. They also noted Q1 is typically a lighter bookings quarter and Q2 is usually the strongest. 2. Apartments.com revenue growth moderation and pricing: Analysts asked about the sequential moderation in Apartments.com's revenue growth to 10% year-over-year and what would drive reacceleration. Management attributed some moderation to winning lower ARPU rooftops from Rent.com during a share shift opportunity. They believe continued sales force growth, strengthening single-family presence through Homes.com syndication, and new AI features like Smart Search and Apartments AI will improve the growth rate. 3. Sales force productivity and resource deployment: Analysts inquired about ramp times, quota attainment, and where incremental sales resources would be deployed. Management detailed varying productivity by brand, the multi-year ramp-up for sales reps (especially Homes.com's relatively junior sales force), and plans to grow field sales for Homes.com (50 more reps in batches of 5 cities) and Apartments.com, as well as the Matterport sales team. They also indicated that the Homes.com product is currently underpriced given the value delivered. | Total Revenue: 23% year-over-year. Commercial Business: 15% year-over-year. CoStar revenue: 9% year-over-year. LoopNet revenue: 16% year-over-year. Other commercial revenue: 81% year-over-year (Matterport subscription revenue up 19% year-over-year). Residential revenue: 32% year-over-year. Apartments.com: 10% year-over-year. Homes.com: 58% year-over-year. Land.com: 8% year-over-year. Domain Australia (core Residential): 11% year-over-year. CoStar U.K.: 25% year-over-year. CoStar Canada: 22% year-over-year. |
· 2025Q3 Earnings Call
| 3 Things Management Is Most Focused On | Call Takeaway & Tone | Prior Quarter'S Y/Y Growth By Segment | 3 Things Analysts Most Pressed On (And Mgmt Responses) | Revenue Segments |
|---|---|---|---|---|
| 1. AI Integration and 'Smart Search': Management is allocating 50% of Homes.com software development to AI, specifically launching AI Smart Search which has already driven a 51% increase in leads and 5x higher user return rates. 2. Residential Market Disruption: Scaling the 'Your Listing, Your Lead' model on Homes.com to gain market share from Zillow, which management highlighted as being 'under siege' from multiple federal and antitrust lawsuits. 3. Strategic Integration of Acquisitions: Rapidly integrating Domain (Australia) and Matterport to digitize the global real estate market, with Matterport bookings already up 194% y/y. | Takeaway: CoStar is successfully transitioning from a commercial-only powerhouse to a diversified global real estate data and AI leader. The company is capitalizing on its proprietary data moat to launch agentic AI features while aggressively attacking Zillow's business model during a period of regulatory weakness for the incumbent. Tone: Highly confident, aggressive, and combative toward competitors. | CoStar: 7% y/y; Apartments.com: 13% y/y; LoopNet: 7% y/y; Residential: 40% y/y; Information Services: 10% y/y; Total Revenue: 12% y/y. | 1. Booking Seasonality and Trajectory: Analysts questioned the sequential dip in total bookings; Management responded that the decline was seasonal following the major NAA event in Q2, while Homes.com bookings actually accelerated 53% quarter-over-quarter. 2. Sales Force Productivity: Analysts asked about the ramp-up time for the 500+ new sales reps; Management stated that productivity per rep is at its highest level since 2023 and the ROI on new hires remains very strong. 3. AI Spending and 2026 Margins: Analysts pressed on whether the AI pivot would increase costs; Management clarified that the AI focus is a reallocation of existing resources and they anticipate flat or lower investment spending for Homes.com in 2026. | CoStar: 8% y/y; Apartments.com: 11% y/y; LoopNet: 12% y/y; Residential: 31.3% y/y; Information Services: 19% y/y; Total Revenue: 20% y/y. |
Transcript Tidbits
| About Expanding Eligible Market | About Competition | About The Broader Industry | Where Things Are Headed | Updates On Theme | Broader Themes Emerging | Bullish-Leaning Quotes (Short) | Bearish-Leaning Quotes (Short) | Hiring |
|---|---|---|---|---|---|---|---|---|
| CoStar is launching a net effective rent benchmark product this summer and a new homes module in Q2. CoStar Debt Solutions is on track to launch CRE debt benchmarking in H2 '26 and loan origination workflow in Q1 '27. International expansion includes CoStar France launching in Q2, and CoStar and LoopNet launching in Australia in Q3 and Q4. LoopNet's asset-based pricing has opened up new inventory and attracted smaller advertisers. BizBuySell is being transformed into an end-to-end transaction platform. Homes.com is now the fastest-growing rental site in the U.S. and will integrate all Apartments.com features by end of 2026. Homes.com has also generated $3.3 million in annualized net new bookings from new homebuilders, with data feeds covering 75% of U.S. production new home activity. Land.com net new bookings hit a record, up 126% year-over-year. OnTheMarket has eclipsed Zoopla as the U.K.'s #2 portal by inventory and has more new home listings than Rightmove, boosted by signing the Connells Group. | CoStar U.K.'s growth was supported by the 'recollapse of one of our primary competitors there'. Apartments.com network unique visitors were up 3% year-over-year in March, while Zillow unique visitors were down 5% year-over-year, and Zillow's expanded rental network was down 3%. Zillow has seen unique visitors decline year-over-year for 15 consecutive months. Homes.com hit its current revenue levels faster than U.S. competitors did at their start. OnTheMarket has eclipsed Zoopla as the U.K.'s #2 portal by inventory and now has more new home listings than Rightmove. | Overall rental search demand remains soft. Six states already require rental price transparency, and the FTC concluded its public comment period on similar rules. The Australian market is highly cyclical, with Q1 being seasonally soft. Improving commercial real estate market conditions are indicated by strong broker and tenant sales for CoStar. | CoStar Rent Benchmark launches this summer, and CoStar New Homes Phase 1 is planned for Q2. CoStar Debt Solutions will launch CRE debt benchmarking in H2 '26 and loan origination workflow in Q1 '27. CoStar France launches in Q2, and CoStar and LoopNet will launch in Australia in Q3 and Q4. AI lease abstraction capabilities will extend to CoStar Real Estate Manager later this year. Apartments AI, a conversational search experience, will launch ahead of the June Apartmentalize trade show. By the end of 2026, all Apartments.com tools will be available on Homes.com. Adjusted EBITDA is now expected to range from $780 million to $820 million for full year 2026, an increase of $30 million at its midpoint. The company is committed to delivering double-digit revenue growth and significant earnings expansion through 2030 and beyond. OnTheMarket will continue building AI search functionality and integrate into the Homes.com software environment in 2027. | Data | AI integration into operational efficiencies and internal processes, with the deployment of 'multiple AI agents internally' for customer onboarding, support, and automation. A shift in user interaction paradigms towards natural language and voice search, exemplified by Apartments.com's 'Smart Search' and 'AI-powered voice search'. An emerging regulatory trend impacting the real estate industry, with several states already requiring rental price transparency and the FTC considering similar rules. | This was an exceptional quarter. We delivered our 60th consecutive quarter of double-digit revenue growth. Our adjusted EBITDA doubled, and we're on track for the highest full year adjusted EBITDA in CoStar Group's history. Homes.com is the fastest-growing residential portal in the United States. Q1 net bookings of $67 million were up 20% year-over-year. On average, a Homes.com subscriber earned $36,400 more in commissions in their first year as a member. For CoStar Group as a whole, this is the fastest organic revenue build we've ever achieved for a new product. When consumers experience Homes AI, they spend roughly 4x longer than they do on conventional residential search. The strategy is working. I've never been more confident in our plan to deliver double-digit revenue growth and significant earnings expansion through 2030 and beyond. | The activist distraction is behind us. The activist campaign over the last year did weigh heavily on Homes.com sales and potential partnerships. Google, overall rental search demand remains soft. Zillow has now seen unique visitors decline year-over-year for 15 consecutive months. Our first quarter tends to be a little lighter. | Productivity is expected to build from sales reps hired throughout 2025. Sales headcount at the end of March was 2,090, with Homes.com having 570 reps, Apartments.com 520, CoStar 475, and LoopNet 225. The company will be adding reps for other brands throughout the remainder of the year. For Homes.com, there's a focus on driving productivity and efficiency in 2026, and the company will continue to grow its field sales force, adding about 50 more folks in batches of 5 cities at a time, as they are more productive than inside sales. New homes advertising salespeople at Homes.com are also highly productive. The Apartments.com and LoopNet field sales teams are expected to continue growing at a measured pace. The Matterport sales team is growing in measured batches of approximately 20 per quarter. Efficiencies from AI are contributing to lower personnel costs. |
| About Expanding Eligible Market | About Competition | About The Broader Industry | Where Things Are Headed | Updates On Theme | Broader Themes Emerging | Bullish-Leaning Quotes (Short) | Bearish-Leaning Quotes (Short) | Hiring |
|---|---|---|---|---|---|---|---|---|
| CoStar is aggressively expanding its TAM through several vectors: the Homes.com 'Boost' product for homeowners alone represents a $2 billion U.S. TAM. The company is scaling its 'Lender' business, which reached a $100 million revenue milestone and is expanding into loan origination systems. International expansion is a major focus following the $1.9 billion Domain acquisition in Australia and the integration of French listings into LoopNet. Management believes digitizing the $350 trillion global real estate market creates a $1 trillion addressable market opportunity. | Management describes primary competitor Zillow as being 'under siege' from five federal lawsuits and an FTC suit regarding multifamily advertising. CoStar claims a superior business model by not using 'lead diversion,' allowing them to sell to over 50% of agents compared to competitors who are limited to roughly 5%. Homes.com reportedly has 5x the number of marketed listings (130,000) compared to Zillow's Showcase product (24,500). In Australia, CoStar plans to use its technology to help Domain compete more effectively against market leader REA Group. | The industry is shifting from traditional SEO to AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization). While GEO currently accounts for less than 1% of top-of-funnel traffic, it is expected to become a major feed. There is a broader move away from iBuying and lead diversion models toward pure marketing and digital twin integration. Management notes that general-purpose AI models often fail in real estate, necessitating specialized vertical solutions built on proprietary data. | CoStar is pivoting 50% of its Homes.com software development effort toward AI-empowered features, including 'Smart Search.' The company is targeting long-term adjusted EBITDA margins of over 40% for its residential portals. Strategic plans include launching a commercial loan origination system in 2026 and integrating CoStar Real Estate Manager with the CoStar Suite by late 2026. LoopNet is expected to return to 20%+ annual growth rates in the near future. | Data | The emergence of AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) as successors to traditional Search Engine Optimization (SEO) for digital marketplaces. | Homes.com is now the fastest-growing revenue product we've ever launched.; 58th consecutive quarter of double-digit revenue growth.; We have 5x the number of listings marketed or boosted on our site [vs Zillow Showcase].; Matterport's Q3 revenue was 12% higher than our expectations. | Fourth quarter is expected to be slightly impacted by... lower camera sales at Matterport as we sunset the Pro 2 camera.; Domain was previously constrained... operated with short-term EBITDA strategy.; Zillow is under siege facing an unprecedented wave of lawsuits. | The Apartments.com sales force has grown to over 500 representatives. Homes.com has 500 sales reps in production with another 150 in preproduction. CoStar plans to expand the Matterport sales force by 200 by the end of 2026. Total sales force across the company now exceeds 2,000 people. |
Notes
| Date | Comment | Comment Type | Comment Sentiment | Link | IS CHANGE | Price Reaction |
|---|---|---|---|---|---|---|
| 2026-04-28 | CoStar reported strong Q1 2026 with 23% revenue growth and doubled adjusted EBITDA, raising full-year guidance. Homes.com showed significant traction and agent ROI, with the residential segment nearing profitability in Q2. Despite this positive messaging and operational strength, the market reacted negatively, with the stock underperforming SPY by 4.71% post-earnings, possibly due to concerns over sequential bookings decline or sustained residential investment. | Earnings Transcript | Negative | False | -3.45% (vs SPY: -4.71%) |
Upcoming Events
| Catalyst ID | Estimated Timing | Estimated Date Start | Estimated Date End | Catalyst | Why It Matters | Ticker Or Theme Specific | Transcript Date | Source Type |
|---|---|---|---|---|---|---|---|---|
| CSGP_14546d18 | this summer | 2026-06-01 | 2026-08-31 | Launch of CoStar's proprietary net effective rent benchmark product. | This product will offer unique market visibility, potentially attracting new customers (landlords, occupiers, investors, brokers) and driving revenue growth for CoStar. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_462d68e8 | Q2 | 2026-04-01 | 2026-06-30 | Phase 1 launch of the CoStar new homes module. | This module expands CoStar's reach into the new residential construction market, serving homebuilders and related professionals, and potentially creating new revenue streams. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_269c08d7 | second half of '26 | 2026-07-01 | 2026-12-31 | Launch of CRE debt benchmarking product by CoStar Debt Solutions. | This will enhance the product offering for financial institutions, potentially driving increased adoption and revenue for the Debt Solutions segment. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_db6727b5 | Q1 of '27 | 2027-01-01 | 2027-03-31 | Launch of CRE loan origination workflow by CoStar Debt Solutions. | This full workflow solution will further integrate CoStar into the commercial lending process, offering significant value to financial institutions and potentially boosting subscription revenue. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_69f708d7 | Q2 | 2026-04-01 | 2026-06-30 | Launch of the CoStar platform in France. | This international expansion is a key step in building a pan-European CRE data and analytics platform, accelerating adoption and contributing to international revenue growth. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_f6ecfc62 | Q3 | 2026-07-01 | 2026-09-30 | Launch of the CoStar platform in Australia. | This expansion into Australia opens a new market for CoStar's core commercial real estate data and analytics services, contributing to global revenue diversification. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_5a200462 | Q4 | 2026-10-01 | 2026-12-31 | Launch of the LoopNet platform in Australia. | Expanding LoopNet globally extends its network effects, potentially driving more listings, traffic, and revenue in the Australian commercial real estate market. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_fc5dbc5c | later this year | 2026-07-01 | 2026-12-31 | Extension of AI lease abstraction capabilities to CoStar Real Estate Manager. | This enhancement improves product value and customer satisfaction, potentially driving increased adoption and retention of CoStar Real Estate Manager. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_2f4b61f8 | ongoing impact from rollout last month | 2026-03-01 | 2026-12-31 | Continued impact and adoption of LoopNet's new asset-based pricing model across all U.S. markets. | This strategy is expected to drive more listings, traffic, and revenue by better aligning pricing with asset value and attracting a wider range of advertisers, potentially accelerating LoopNet's growth. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_ac872559 | In Q2 | 2026-04-01 | 2026-06-30 | Continued development and rollout of AI search functionality for OnTheMarket. | Enhancing AI search is crucial for improving user engagement and lead generation on OnTheMarket, which is key to its competitive position in the UK market. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_b22a7d92 | in 2027 | 2027-01-01 | 2027-12-31 | Full integration of OnTheMarket into the Homes.com software environment. | This strategic integration aims to leverage Homes.com's technology and scale for OnTheMarket, potentially driving significant operational efficiencies, product enhancements, and market share gains in the UK. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_e84d151b | in Q2 2026 | 2026-04-01 | 2026-06-30 | Residential segment achieving positive Adjusted EBITDA. | This milestone would signal a significant turning point for the heavily invested Residential segment, demonstrating progress towards profitability and validating the investment strategy, which could positively impact investor sentiment and valuation. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_149dc63a | throughout the remainder of the year and over the coming years | 2026-05-01 | 2028-12-31 | Continued hiring and ramp-up of sales representatives across CoStar's brands (excluding Homes.com). | Increased sales force capacity and improving productivity are crucial for driving net new bookings and revenue growth across CoStar's established commercial and residential platforms. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_7f6eeba6 | in 2026 | 2026-01-01 | 2026-12-31 | Improved productivity and efficiency of Homes.com sales representatives. | Enhanced sales productivity is critical for accelerating Homes.com's membership growth and monetization, directly impacting the segment's revenue trajectory and path to profitability. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_40e9c089 | on May 1 | 2026-05-01 | 2026-05-01 | Implementation of increased subscription fees for new Homes.com customers. | This pricing action aims to capture more value from the strong ROI Homes.com provides to agents, potentially boosting ARPU and accelerating revenue growth for the residential segment. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_66e28f3e | evaluate a measured potential renewal increases | 2026-05-01 | 2026-12-31 | Decision and implementation of subscription fee increases for existing Homes.com members upon renewal. | Raising renewal prices would further enhance Homes.com's monetization and ARPU, contributing significantly to the residential segment's revenue and profitability, assuming retention remains strong. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_e1d6b90c | Ahead of the June Apartmentalize trade show | 2026-05-01 | 2026-06-30 | Launch of Apartments AI, a pioneering conversational search experience. | This new AI-powered feature is expected to deepen renter engagement and deliver higher quality leads for advertisers, enhancing Apartments.com's competitive advantage and potentially driving increased advertiser ROI and revenue. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_eb2860bb | By the end of 2026 | 2026-05-01 | 2026-12-31 | Full integration of Apartments.com's feature set into Homes.com for independent owners. | This integration will significantly enhance Homes.com's rental capabilities, attracting more independent owners and renters, and leveraging the combined power of both platforms to drive single-family rental listings and revenue. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_ff17383d | in batches of 5 cities at a time | 2026-05-01 | 2026-12-31 | Expansion of Homes.com field sales team by approximately 50 representatives in batches across multiple cities. | Increasing the field sales force is expected to boost Homes.com's sales productivity and member acquisition, directly contributing to revenue growth and market penetration for the residential segment. | Ticker | 2026-04-28 | earnings_transcript |
| CSGP_a14efca3 | measured batches of probably 20 at a quarter | 2026-05-01 | 2026-12-31 | Continued expansion of the Matterport sales team in measured batches. | A larger and more effective Matterport sales team is crucial for driving subscription revenue growth and increasing adoption of Matterport's technology across various industries and CoStar's platforms. | Ticker | 2026-04-28 | earnings_transcript |