Why CoStar Group (CSGP) Is Winning Over Analysts Despite a Tough Year
CoStar Group Inc. (NASDAQ: CSGP) has been identified as one of BlackRock’s 30 most important AI-related stocks, a distinction that underscores its strategic value in the eyes of the world’s largest asset manager. According to Yahoo Finance data, BlackRock is the second-largest institutional shareholder in CoStar, holding roughly 33.81 million shares worth over $1 billion — representing about 8.3% of total outstanding shares. The top institutional holder remains Vanguard Portfolio Management LLC with a 9.36% stake.
The stock has had a brutal run in 2026 so far, dropping about 58% year-to-date as of June 30. But even amid that slide, sell-side sentiment has held up surprisingly well. Of the 24 analysts covering CoStar, roughly two-thirds rate it a Buy or equivalent, while 21% advise a Hold. The median 12-month price target of $46 implies a potential upside of roughly 57% from current levels.
One of the latest firms to reaffirm its positive stance was Goldman Sachs. In a report published June 25, the bank maintained its Buy rating on CoStar but lowered its price target by 15%, from $54 to $46. The adjustment reflects a divergence in the outlook for CoStar’s two residential platforms: Homes.com and Apartments.com.
For Homes.com, Goldman analysts flagged a decline in web traffic and expect that trend to persist, citing the company’s planned reduction in marketing spending for 2026. On the flip side, the outlook for Apartments.com is far more upbeat. Goldman expects healthy growth to continue on that platform, with lower investment requirements — a dynamic that could support margins and earnings in the coming quarters.
CoStar Group is best known for its commercial real estate data and online marketplace platforms. Its portfolio includes CoStar Property, CoStar Markets, CoStar Leasing, CoStar Sales, Homes.com, and LoopNet, among others. The company serves a wide range of property types — office, industrial, retail, multifamily, hospitality, and student housing — making it a central information hub for the commercial real estate industry.
While CoStar’s near-term struggles are real, the analyst community appears to be looking past the noise. The combination of BlackRock’s endorsement, a strong balance sheet, and the potential for a rebound in the residential segment has kept many on Wall Street constructive. Whether those bets pay off will likely hinge on how quickly the company can stabilize traffic on Homes.com while continuing to monetize its core data and marketplace businesses.
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