CoStar Group (CSGP) Q4 2025 earnings review
Growth Accelerates as Heavy Investment Phase Ends
CoStar Group delivered a blowout Q4, marked by accelerating top-line growth and a dramatic inflection in profitability. Revenue surged 27% YoY to $900M, but the real story is the operational leverage: Adjusted EBITDA rocketed 58% to $177M. The heavy lifting of the Homes.com national brand launch is officially behind the company, evidenced by the Residential segment reaching breakeven after quarters of deep losses. Management is leaning into this momentum with a highly aggressive 2026 guidance, projecting Adjusted EBITDA to nearly double to a midpoint of $770M, backed by a fresh $700M share repurchase program.
🐂 Bull Case
The Residential segment reached breakeven Adjusted EBITDA ($0) in 25Q4, reversing from a $50M loss a year ago and an $85M loss in 25Q1. The multi-quarter drag on earnings is officially over.
The platform has cemented its #2 position with 108 million average monthly unique visitors and over 31,000 agent subscribers. With 76% on annual contracts, this provides a highly visible ~$100M annual run rate.
🐻 Bear Case
While Adjusted metrics look spectacular, GAAP Net Income collapsed to just $7M for the full year (down from $139M in 2024). Massive acquisition, integration, and amortization costs from Matterport and Domain are eating real cash.
Cash and equivalents fell from $4.68B to $1.63B in 2025, driven by $2.34B in net acquisition costs and a $389M CapEx spend, largely for the new Richmond campus. The balance sheet buffer is shrinking.
⚖️ Verdict: 🟢
Bullish. The core thesis—that massive upfront investments in Homes.com would eventually yield operating leverage—is playing out perfectly. The pivot from residential cash-burn to enterprise-wide earnings acceleration is clear.
Key Themes
Residential Margin Reversing to Breakeven
The most critical inflection point in the report is the Residential segment's profitability trajectory. Adjusted EBITDA went from a valley of -$85M in 25Q1 to exactly $0 in 25Q4. With marketing spend normalizing, this segment is transitioning from the company's biggest financial anchor to a primary margin expansion driver.
Homes AI Launch Marks New Product Cycle
Management announced the launch of Homes AI, describing it as 'the most sophisticated vertical AI application in real estate.' By deploying this across the entire portfolio, CoStar aims to accelerate user engagement and widen its competitive moat against Zillow and Realtor.com. This represents a tangible shift from brand-building to technology-led monetization.
Net New Bookings Accelerating
Forward-looking demand is exceptionally strong. The company secured a record $308M in Net New Bookings for the full year 2025. This provides high confidence in the 2026 revenue guidance, as subscription-based models translate these bookings into stable, compounding recurring revenue over the next 12 months.
GAAP vs. Non-GAAP Disconnect
Management's narrative focuses heavily on 'earnings acceleration,' yet the actual data contradicts this on a GAAP basis. Full-year 2025 Net Income fell to $7M from $139M in 2024. The massive gap is bridged by adding back $194M in stock-based compensation, $192M in acquired intangible amortization, and $63M in acquisition/integration costs. Investors must recognize that 'Adjusted Net Income' ignores significant, real costs of the M&A strategy.
Persistent CRE Macro Headwinds
While CoStar's commercial revenue grew 20% in Q4 (heavily aided by the Domain and Matterport acquisitions), the broader commercial real estate environment remains fundamentally stressed. High interest rates and office vacancies continue to cap organic pricing power for the legacy CoStar suite. Management's ability to maintain high renewal rates if distressed properties continue to default is a key ongoing risk.
Aggressive Capital Deployment Altering Balance Sheet
CoStar consumed $2.9B in cash during 2025. Major outflows included $2.34B for M&A, $389M for property and equipment (including the Richmond campus), and $500M in stock repurchases. While the company still holds $1.63B in cash and generates positive operating cash flow ($430M), the era of hoarding a massive $4.6B cash war chest is over.
Other KPIs
Stable. The commercial side of the business continues to print cash, providing the exact funding required to support the residential expansion. The $177M generated here precisely offsets corporate overhead and the now-neutral residential segment to arrive at the consolidated total.
Accelerating slightly from $393M in 2024. While GAAP net income plummeted, operating cash flow improved due to adding back $194M in stock-based comp and $263M in depreciation/amortization. However, after deducting $389M in total CapEx, true Free Cash Flow for the year was a marginal $41M.
Guidance
Decelerating slightly on a percentage basis to ~17% YoY at the midpoint (compared to 19% in FY25), but represents massive absolute dollar growth of nearly $550M. This assumes continued strong conversion of the $308M in 2025 net new bookings.
Accelerating dramatically. The midpoint of $770M represents a 74% YoY increase from 2025's $442M, proving management's claim of 'significant earnings acceleration.' Implied margin expands to 20%.
Accelerating to ~22% YoY growth at the midpoint. Notably, this suggests flat sequential growth from 25Q4's $900M, implying some seasonality or base effects from the timing of Domain/Matterport integrations.
Decelerating sequentially from 25Q4's massive $177M print. Management explicitly noted that Adjusted EBITDA margins will increase throughout the year based on the timing of marketing spend (likely front-loaded in Q1) and Domain seasonality.
Key Questions
Residential Margin Ceiling
With the Residential segment hitting breakeven in Q4, what is the target structural operating margin for this business at scale, and how quickly will it converge with the high-margin Commercial segment?
Homes AI Monetization
You highlighted the launch of Homes AI. Is this viewed purely as an engagement/retention tool to drive traffic, or are there direct monetization tiers and premium subscriptions planned for this capability?
M&A Integration Costs
Acquisition and integration costs, along with related amortization, heavily depressed GAAP earnings in 2025. When do you expect the integration of Matterport and Domain to be fully completed, and for these drag costs to normalize?