CoStar - 27 Year Stock Price History | CSGP

The latest closing stock price for CoStar as of July 11, 2025 is 85.43.

  • An investor who bought $1,000 worth of CoStar stock at the IPO in 1998 would have $91,980 today, roughly 92 times their original investment - a 18.28% compound annual growth rate over 27 years.
  • The all-time high CoStar stock closing price was 99.74 on October 26, 2021.
  • The CoStar 52-week high stock price is 86.14, which is 0.8% above the current share price.
  • The CoStar 52-week low stock price is 68.26, which is 20.1% below the current share price.
  • The average CoStar stock price for the last 52 weeks is 76.65.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

CoStar - 27 Year Stock Price History | CSGP

  • An investor who bought $1,000 worth of CoStar stock at the IPO in 1998 would have $91,980 today, roughly 92 times their original investment - a 18.28% compound annual growth rate over 27 years.
  • The all-time high CoStar stock closing price was 99.74 on October 26, 2021.
  • The CoStar 52-week high stock price is 86.14, which is 0.8% above the current share price.
  • The CoStar 52-week low stock price is 68.26, which is 20.1% below the current share price.
  • The average CoStar stock price for the last 52 weeks is 76.65.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.