← CoStar overview

CoStar vs Zillow: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

CoStar Group Inc (CSGP)

Q3 2026
▼3▲1

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.

July 2026
▼3▲1

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.

Latest
▼3▲1

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.

Zillow Group Inc Class C (Z)

Q3 2026
▲2▼2

Zillow's AI push and buybacks offset legal and rate pressures

  • Capital-light model and buybacks Zillow's asset-light model delivered $46M net income, 73% gross margin, and $626M in buybacks, contrasting with Opendoor's struggles. This financial strength supports investor confidence.

    Highlights a key positive financial performance that drove sentiment.

  • Nationwide AI agent platform launch Zillow Pro, an AI agent platform, launched nationwide, deepening agent integration and potentially boosting efficiency and revenue. This innovation could strengthen Zillow's competitive position.

    Shows a new growth initiative that could impact future earnings.

  • Legal risks persist An antitrust hearing over listing access could yield an injunction, and securities fraud class actions allege Zillow misled investors about its Redfin deal. These legal overhangs weigh on the stock.

    Ongoing legal issues are a significant negative factor affecting Zillow's price.

  • Mortgage rates and layoffs spook investors Rising mortgage rates hit 11-month highs, squeezing affordability and listings. Despite a Q2 beat, 500 layoffs, an expanded CFO role, and an 11% stock drop spooked investors.

    Macro headwinds and internal changes negatively impacted investor sentiment.

July 2026
▲2▼2

Zillow's AI push and buybacks offset legal and rate pressures

  • Capital-light model and buybacks Zillow's asset-light model delivered $46M net income, 73% gross margin, and $626M in buybacks, contrasting with Opendoor's struggles. This financial strength supports investor confidence.

    Highlights a key positive financial performance that drove sentiment.

  • Nationwide AI agent platform launch Zillow Pro, an AI agent platform, launched nationwide, deepening agent integration and potentially boosting efficiency and revenue. This innovation could strengthen Zillow's competitive position.

    Shows a new growth initiative that could impact future earnings.

  • Legal risks persist An antitrust hearing over listing access could yield an injunction, and securities fraud class actions allege Zillow misled investors about its Redfin deal. These legal overhangs weigh on the stock.

    Ongoing legal issues are a significant negative factor affecting Zillow's price.

  • Mortgage rates and layoffs spook investors Rising mortgage rates hit 11-month highs, squeezing affordability and listings. Despite a Q2 beat, 500 layoffs, an expanded CFO role, and an 11% stock drop spooked investors.

    Macro headwinds and internal changes negatively impacted investor sentiment.

Latest
▼2▲1

Zillow's legal cloud persists as Q2 beats and layoffs hit

  • Securities fraud class action over Redfin deal A new class action claims Zillow misled investors by calling its $100 million Redfin payment a partnership instead of an anticompetitive acquisition. This keeps legal costs and uncertainty high, weighing on the stock.

    This is a new lawsuit filing that adds to Zillow's legal overhang and directly pressures the stock.

  • Zillow report: 300,000 vacant lots could ease housing shortage Zillow's own data shows over 300,000 vacant lots for sale, enough to cut the U.S. housing shortage by 6.3% if built on. This highlights Zillow's role in the land market and could draw more listings and users.

    It shows a potential demand driver for Zillow's platform and positions the company as a housing market problem-solver.

  • Mortgage rates hit 11-month high, affordability worsens Rising mortgage rates and record home prices are squeezing buyers, with new listings falling to their lowest since December. Fewer transactions mean less revenue for Zillow's marketplace and mortgage businesses.

    It explains a key external headwind that reduces home-buying activity and directly affects Zillow's revenue.

  • Q2 earnings beat, but layoffs and CFO role expansion spook investors Zillow beat revenue and profit estimates, yet announced 500 layoffs and gave the CFO added COO duties. The stock fell 11% as investors worried about cost cuts and management changes despite strong results.

    It captures the latest earnings surprise and the market's negative reaction, which is central to why the stock moved.

▲2▼2

Zillow's legal cloud persists as AI agent platform launches

  • Antitrust hearing heats up A Chicago federal judge heard fiery testimony from Compass and MRED CEOs over Zillow's listing access. A ruling on arbitration could lead to a preliminary injunction, threatening Zillow's business practices and keeping legal costs high.

    This is the latest development in the ongoing antitrust case, a major overhang on the stock.

  • Securities fraud deadline nears Investors were reminded of the August 10 lead plaintiff deadline in a class action alleging Zillow misled about its Redfin deal. The lawsuit, tied to past stock drops, adds to legal uncertainty and potential financial penalties.

    This is a new reminder of an ongoing legal issue that weighs on investor sentiment.

  • Capital-light model shines Zillow's high-margin, asset-light platform contrasts sharply with Opendoor's cash-burning model. With $46 million net income, 73% gross margin, and $626 million in buybacks, Zillow looks like a cleaner investment, which could attract buyers.

    This highlights Zillow's financial strength relative to a competitor, a positive for the stock.

  • AI platform for agents goes nationwide Zillow launched Zillow Pro, an AI-powered tool for all agents, even non-advertisers. This deepens agent integration and could boost engagement and leads, supporting future revenue growth and strengthening Zillow's competitive position.

    This is a new product launch that could drive growth and improve Zillow's ecosystem.

Q2 2026
▼2

Zillow hit by multiple securities class actions over Redfin deal

  • Securities class actions pile up over Redfin deal Multiple law firms filed class actions alleging Zillow misled investors by calling its Redfin deal a partnership when it was really an acquisition, hiding antitrust risk. This legal overhang can mean higher costs, management distraction, and potential fines, weighing on the stock.

    This is the main new event of the period and directly explains negative pressure on Z's price.

  • Bed Bath & Beyond enters real estate, adding competition Bed Bath & Beyond is buying Fathom Holdings for $53 million to create a full homeownership platform, putting it in direct competition with Zillow and Redfin. More competition could pressure Zillow's market share and pricing power over time.

    This is a new competitive threat that could affect Zillow's future growth and profitability.

June 2026
▼2

Zillow hit by multiple securities class actions over Redfin deal

  • Securities class actions pile up over Redfin deal Multiple law firms filed class actions alleging Zillow misled investors by calling its Redfin deal a partnership when it was really an acquisition, hiding antitrust risk. This legal overhang can mean higher costs, management distraction, and potential fines, weighing on the stock.

    This is the main new event of the period and directly explains negative pressure on Z's price.

  • Bed Bath & Beyond enters real estate, adding competition Bed Bath & Beyond is buying Fathom Holdings for $53 million to create a full homeownership platform, putting it in direct competition with Zillow and Redfin. More competition could pressure Zillow's market share and pricing power over time.

    This is a new competitive threat that could affect Zillow's future growth and profitability.

▼2

Zillow hit by multiple securities class actions over Redfin deal

  • Securities class actions pile up over Redfin deal Multiple law firms filed class actions alleging Zillow misled investors by calling its Redfin deal a partnership when it was really an acquisition, hiding antitrust risk. This legal overhang can mean higher costs, management distraction, and potential fines, weighing on the stock.

    This is the main new event of the period and directly explains negative pressure on Z's price.

  • Bed Bath & Beyond enters real estate, adding competition Bed Bath & Beyond is buying Fathom Holdings for $53 million to create a full homeownership platform, putting it in direct competition with Zillow and Redfin. More competition could pressure Zillow's market share and pricing power over time.

    This is a new competitive threat that could affect Zillow's future growth and profitability.

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