CoStar (CSGP) Q3 2026 Earnings Call Transcript

CoStar Group reported Q3 revenue of $952 million, up 14% year over year, and record adjusted EBITDA of $229 million, double the year-earlier result and above its $190 million–$210 million guidance range; adjusted EPS rose 65% to $0.38. The company raised 2026 adjusted EBITDA guidance to $820 million–$840 million, while revenue guidance is $3.75 billion–$3.77 billion; net new bookings fell to $37 million from $84 million, and management cited economic headwinds and slower sales-force growth. CoStar also agreed to acquire Vexcel for approximately $730 million and identified $200 million in additional efficiency opportunities over the next 12–18 months.

Analysis

The earnings quality is split: cost execution is real, but the demand engine has not yet turned. The EBITDA beat and higher outlook can support near-term sentiment, yet weaker bookings and lower Apartments.com property counts show that margin expansion is partly arriving alongside constrained sales capacity—not proof of stronger underlying demand. Management’s $200 million efficiency pool should not be capitalized dollar-for-dollar: allocation between margin and reinvestment remains undecided, and sales hiring is necessary to protect subscription growth.

The key 1–3 month test is whether Q4 bookings improve sequentially and sales hiring translates into lower cancellations and renewed net additions. If so, 2027 revenue growth can reaccelerate while the cost base provides operating leverage. If not, the market may treat the record margin as a temporary harvest of underinvestment. Apartments.com’s high renewal rate is a buffer, but tighter multifamily economics and a shift toward smaller, higher-churn customers raise downside sensitivity.

Vexcel is strategically attractive as a proprietary data input for CoStar’s AI and mapping products, but the synergy case is not yet independently demonstrated. On management’s figures, the purchase price is about 5x reported last-twelve-month revenue; funding partly through the revolver makes realized cross-selling and data rights worth monitoring. The competitive upside is richer property data and more differentiated products versus portals such as Zillow, while the risk is that integration consumes resources before Homes.com and sales execution mature. Consensus may over-credit identified savings and AI optionality while underweighting the bookings gap; near-term, execution—not the ambition of the platform—is the valuation catalyst.

Key Decisions for Investors

• Do not chase the immediate EBITDA beat. Consider a staged CSGP long only after Q4 results confirm sequential bookings improvement; the upside case is sales capacity plus operating leverage, while failure to improve bookings risks multiple compression despite margin strength.
• Track net new bookings, sales-force additions, Apartments.com paid-property counts and renewal trends as the primary 2027 inflection indicators. A further decline in properties or no sequential bookings recovery would falsify the recovery thesis.
• Treat the $200 million efficiency opportunity and Vexcel synergies as unproven until reflected in guidance and cash generation. Verify Vexcel data-rights terms, integration costs, revolver usage and whether savings are reinvested before underwriting incremental EBITDA.
• No clean relative-value pair is established by these disclosures alone. Reassess CSGP versus Zillow only after Homes.com premium-advertising retention and customer-acquisition economics are reported with enough detail to compare.