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CoStar Group IncCSGP

Why is CoStar (CSGP) moving?

Q3 2026
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CoStar Q3: Growth Offsets Guidance Cut and CFO Exit

  • Strong Q2 results and first residential profit CoStar's Q2 revenue jumped 18% and adjusted EBITDA doubled to $184M. The residential segment turned its first profit, with Homes.com revenue up 66%, showing the bet on residential real estate is starting to pay off.

    This shows the core business is growing and the residential pivot is gaining traction, a key positive for the stock.

  • Strategic acquisitions and AI partnership CoStar acquired Wikicasa and Zonda to expand data and advertising reach, and partnered with OpenAI. Insider buying of $2.5M also signaled confidence, supporting the growth story.

    These moves expand CoStar's capabilities and show insider belief, which can boost investor sentiment.

  • CFO exit, downgrade, and weak guidance The CFO's sudden departure, a Baird downgrade, a Q2 revenue miss, and soft Q3 and full-year guidance pressured shares. Delayed Homes.com profitability to 2029 added to concerns about execution.

    These events directly hurt investor confidence and raised questions about management and future performance.

  • Weak commercial real estate demand CoStar projected a 63% drop in commercial deliveries and soft demand, weighing on its core data business. This reflects broader challenges in commercial real estate that could limit growth.

    The core commercial business faces headwinds that may offset gains elsewhere.

August 2026
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CoStar buys growth, but weak guidance and falling demand data weigh

  • CoStar expands abroad and into new homes with deals CoStar bought 30% of Italy's Wikicasa and closed its $800 million Zonda purchase, adding new-home data and marketplaces. These deals widen its data and advertising reach, supporting future revenue, though the cash outlay is large.

    Two acquisitions are the period's main expansion moves and affect CSGP's growth outlook.

  • Residential arm turns first profit as Homes.com grows CoStar's residential segment posted its first profitable quarter, with adjusted EBITDA of $12 million and Homes.com revenue up 66% to $28.5 million. It named a new Homes.com president. This shows the costly residential bet is starting to pay off.

    First residential profit is a key new milestone for CSGP's biggest investment area.

  • Weak guidance and soft demand data drag the stock CoStar missed revenue and gave the weakest full-year guidance among data peers. Its own indices projected a 63% drop in commercial deliveries and slightly negative demand, sending shares down 3.8%. Weak commercial real estate activity cuts demand for its core data.

    Weak guidance and falling demand data are the main negative forces on CSGP's price.

  • AI partnership and insider buying signal confidence Apartments.com was featured in OpenAI's GPT-6 demo, with ChatGPT referral traffic up nearly 40%. CEO Andrew Florance bought $2.5 million of stock near lows. These signal new demand channels and management confidence despite the weak share price.

    AI distribution and insider buying are notable new confidence signals for CSGP.

Latest
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CoStar buys growth, but weak guidance and falling demand data weigh

  • CoStar expands abroad and into new homes with deals CoStar bought 30% of Italy's Wikicasa and closed its $800 million Zonda purchase, adding new-home data and marketplaces. These deals widen its data and advertising reach, supporting future revenue, though the cash outlay is large.

    Two acquisitions are the period's main expansion moves and affect CSGP's growth outlook.

  • Residential arm turns first profit as Homes.com grows CoStar's residential segment posted its first profitable quarter, with adjusted EBITDA of $12 million and Homes.com revenue up 66% to $28.5 million. It named a new Homes.com president. This shows the costly residential bet is starting to pay off.

    First residential profit is a key new milestone for CSGP's biggest investment area.

  • Weak guidance and soft demand data drag the stock CoStar missed revenue and gave the weakest full-year guidance among data peers. Its own indices projected a 63% drop in commercial deliveries and slightly negative demand, sending shares down 3.8%. Weak commercial real estate activity cuts demand for its core data.

    Weak guidance and falling demand data are the main negative forces on CSGP's price.

  • AI partnership and insider buying signal confidence Apartments.com was featured in OpenAI's GPT-6 demo, with ChatGPT referral traffic up nearly 40%. CEO Andrew Florance bought $2.5 million of stock near lows. These signal new demand channels and management confidence despite the weak share price.

    AI distribution and insider buying are notable new confidence signals for CSGP.

July 2026
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CoStar's CFO exit and weak Q2 bookings overshadow solid revenue growth

  • CFO departure and analyst downgrade CoStar's CFO left suddenly, and Baird downgraded the stock, citing concerns about near-term momentum and disappointing net bookings. This management shake-up makes investors nervous about the company's direction, pushing the stock down.

    This is a new event that directly triggered a sharp stock drop and reflects underlying concerns about the company's performance.

  • Q2 revenue miss and weak Q3 guidance CoStar reported Q2 revenue that missed expectations and gave Q3 revenue guidance below consensus. This suggests the company's growth is slowing more than expected, which is why the stock tumbled 15% after the report.

    This is the latest earnings result and guidance, a key new development that directly impacts investor expectations.

  • Homes.com profitability delayed to 2029 CoStar said its Homes.com site won't cover its costs until 2029, meaning it will keep losing money for years. Investors worry about the cash burn, contributing to the stock's 58% year-to-date decline.

    This is a new disclosure about the timeline for profitability, a major factor in the stock's poor performance.

  • Strong Q2 revenue growth and doubled EBITDA Despite the miss, CoStar's Q2 revenue grew 18% year-over-year, and adjusted EBITDA more than doubled to $184 million. This shows the core business is still growing and becoming more profitable, which could support the stock longer term.

    This is a new positive data point from the earnings report that provides a counterweight to the negative news.

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CoStar's CFO exit and weak Q2 bookings overshadow solid revenue growth

  • CFO departure and analyst downgrade CoStar's CFO left suddenly, and Baird downgraded the stock, citing concerns about near-term momentum and disappointing net bookings. This management shake-up makes investors nervous about the company's direction, pushing the stock down.

    This is a new event that directly triggered a sharp stock drop and reflects underlying concerns about the company's performance.

  • Q2 revenue miss and weak Q3 guidance CoStar reported Q2 revenue that missed expectations and gave Q3 revenue guidance below consensus. This suggests the company's growth is slowing more than expected, which is why the stock tumbled 15% after the report.

    This is the latest earnings result and guidance, a key new development that directly impacts investor expectations.

  • Homes.com profitability delayed to 2029 CoStar said its Homes.com site won't cover its costs until 2029, meaning it will keep losing money for years. Investors worry about the cash burn, contributing to the stock's 58% year-to-date decline.

    This is a new disclosure about the timeline for profitability, a major factor in the stock's poor performance.

  • Strong Q2 revenue growth and doubled EBITDA Despite the miss, CoStar's Q2 revenue grew 18% year-over-year, and adjusted EBITDA more than doubled to $184 million. This shows the core business is still growing and becoming more profitable, which could support the stock longer term.

    This is a new positive data point from the earnings report that provides a counterweight to the negative news.