CoStar Group (HAM:RLG) 1-Year Sharpe Ratio: N/A (As of Sep. 04, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

HAM:RLG CoStar Group Inc HAM:RLG
71 GF Score
Price €26.68
GF Value €87.47
Valuation Significantly Undervalued
! 2 Warning Signs
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What is CoStar Group 1-Year Sharpe Ratio?

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-09-04), CoStar Group's 1-Year Sharpe Ratio is Not available.

CoStar Group  (HAM:RLG) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

CoStar Group 1-Year Sharpe Ratio Related Terms

HAM:RLG vs JLL, COMP, BEKE: 1-Year Sharpe Ratio Comparison

For the Real Estate Services subindustry, CoStar Group's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.

CoStar Group 1-Year Sharpe Ratio vs Real Estate Industry

For the Real Estate industry and Real Estate sector, CoStar Group's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where CoStar Group's 1-Year Sharpe Ratio falls into.


HAM:RLG
71GF Score
CoStar Group Inc HAM:RLG
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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CoStar Group 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Is CoStar Group (HAM:RLG) Overvalued in 2026?

Based on GuruFocus' analysis, CoStar Group stock appears to be undervalued. The current stock price of €26.68 is trading 69.5% below its estimated GF Value™ of €87.47. GuruFocus considers CoStar Group to be Significantly Undervalued.

Key valuation signals for HAM:RLG:

  • 1-Year Sharpe Ratio: N/A
  • GF Value™: €87.47 vs. price of €26.68 (69.5% below fair value)
  • GF Score™: 71/100 with 2 warning signs

No single metric tells the full story. See the HAM:RLG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

CoStar Group Business Description

Address 1201 Wilson Boulevard, Arlington, VA, USA, 22209
CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.
71GF Score

Get the complete analysis for HAM:RLG

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€26.68
Price
€87.47
GF Value