CoStar's Profitability Inflection: Discipline Over Growth
CoStar Group's Q2 2026 earnings call marked a decisive pivot. The company is no longer chasing top-line growth at any cost; it is now laser-focused on margin expansion and EBITDA targets. The headline number: “adjusted EBITDA more than doubled year-over-year to $184 million” — Andrew Florance, Chief Executive Officer · 2026-07-28, with a 20% margin — a 900-basis-point improvement. This came even as revenue growth slowed to 18% YoY and net new bookings declined 26% YoY. The tension is deliberate.
The EBITDA Inflection
The strategic shift is most visible in the guidance. CFO Christian Lown explained, “We made a very strategic decision to drive efficiencies and improve profitability and performance of that sales force.” — Christian Lown, Chief Financial Officer · 2026-07-28 The company cut its Homes.com inside sales team from 660 to 400 reps while scaling a smaller, field-based team. This is a bet that field sales will ultimately drive higher productivity, as they have in other CoStar businesses. The result: Residential segment turned positive EBITDA for the first time, and the company affirmed full-year adjusted EBITDA guidance of $780–820 million.
The revenue trajectory remains robust—$925M in Q2, up 18% YoY—but the profit engine is accelerating faster, with adjusted EBITDA up over 100%. The company is consciously trading near-term revenue growth for long-term EBITDA, a message that CEO Andy Florance reinforced explicitly:
It's also a shift from prioritizing revenue growth and revenue growth as the first priority to committing to hitting our EBITDA goals.
Competing on Quality, Not Price
The battle with Zillow in apartment rentals remains a central theme. CoStar is holding firm on price integrity, despite a competitor discounting aggressively to buy share. Florance asserted, “We are holding firm on price integrity while a competitor discounts aggressively to buy share because their quality gap is measurable.” — Andrew Florance, Chief Executive Officer · 2026-07-28 The company leverages its superior lead to lease conversion rate — 2.5x higher than the nearest competitor — as the core value proposition. Legal action adds another front: CoStar has sued Zillow for unauthorized copyright use, and the FTC and state AGs have filed their own suit. This could reshape the competitive landscape.
The company's AI push is also a key differentiator. Apartments.com AI and Homes AI are driving engagement, with AI users spending 3x longer and converting at higher rates. At the same time, AI is cutting costs. Florance noted, “We have more cost savings from AI than we have cost increases from tokens.” — Andrew Florance, Chief Executive Officer · 2026-07-28 This dual role — growth driver and cost cutter — is central to the margin story.
Sales Force Evolution and New Leadership
The shift to field sales is a long-term strategic move. As Florance explained in the Q&A, “You have an advantage when you're in the field because you go to industry events, you show up at open houses, you drop in on residential offices to visit one customer and you come across other customers.” — Andrew Florance, Chief Executive Officer · 2026-07-28 The company is also launching depth advertising on Homes.com, which management believes will drive a step-change in revenue. With a new CFO, Robin Rossmann, taking over from Chris Lown, the focus is squarely on hitting the EBITDA targets.
CoStar is at a crossroads. It is sacrificing some near-term revenue for profitability, but the bet is that the moat — data, brand, and now AI — will allow it to reaccelerate growth later. The market is watching: the stock is down 11.6% over the past 90 days, reflecting skepticism about the growth slowdown. But if the EBITDA discipline delivers, this could be the start of a new re-rating.