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CSGP · Stock Spotlight

CoStar Group Drops 3.5% as Real Estate Pressures Linger

CoStar Group Inc fell 3.5% on Thursday, September 17 without company news. EasyAlpha grades the stock C, where solid growth meets thin profitability.

EasyAlpha Research · Sep 17, 2026 · Sep 17, 6:47 PM EDTPlus

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CSGP · CoStar Group Inc

$29.30-3.5%

Average quality

Our grade

52-week range

Today · $29.30
Low $25.89High $89.80
Open CSGP as of Sep 17, 6:47 PM EDT
  • Our read: EasyAlpha grades CoStar Group Inc C against its Real Estate peers in the S&P 500, where strong growth sits alongside thin profitability.
  • The day: Shares fell 3.5% to close at $29.30 on Thursday, September 17, with our sources showing no company-specific news.
  • Watching: The next quarterly earnings report scheduled for Tuesday, October 27.

CoStar Group Inc (CSGP) fell 3.5% on Thursday, September 17 to close at $29.30. Trading volume was light at 0.7x its 20-session average. Our sources show no company-specific announcements, earnings reports, or regulatory filings on Thursday. The company's most recent corporate release occurred earlier in the week.

While major stock indexes rallied following an easing in bond yields and oil prices, borrowing costs continued to weigh on the housing market. The average 30-year mortgage rate rose to 6.95%, keeping pressure on real estate activity following the Federal Reserve's recent interest rate hike.

The pullback adds to an extended downturn for the company. The shares are -56.4% so far this year and sit 67.4% below their 52-week high of $89.80. Over the past month, CSGP is -6.6%.

EasyAlpha grades CoStar Group Inc C against its industry peers in the S&P 500. Across EasyAlpha's coverage, companies graded A or B have stronger fundamentals, and historically they have carried a lower risk of large drawdowns than companies graded D or E.

For CoStar Group Inc, that balance is defined by robust revenue growth versus slim margins. Top-line revenue grew +18.4% year over year in the latest quarter, showing solid growth. In contrast, profitability represents the primary watch item, with a profit margin of 2.1% and a return on equity of 0.9%. That margin structure leaves CSGP trading at a trailing price-to-earnings ratio of 175.3. Wall Street analysts remain relatively constructive on the stock, with 57.1% of the 21 covering analysts maintaining buy ratings and an average price target of $37.30, which sits 27.3% above Thursday's close.

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  • AExcellent quality
  • BGood quality
  • CAverage quality
  • DBelow average
  • EWeakest quality
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