Historical Stock Price
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Video: Compound Annual Growth Rate (CAGR) Definition
Date Open High Low Close Volume
06/08/2026 $33.31 $34.04 $32.68 $33.39 7.71M
06/09/2026 $33.05 $34.20 $32.85 $33.93 6.63M
06/10/2026 $33.58 $34.77 $33.16 $34.23 6.28M
06/11/2026 $33.53 $34.06 $32.33 $32.65 7.75M
06/12/2026 $32.57 $33.19 $31.63 $32.84 4.91M
CoStar Group, Inc. is a provider of online real estate marketplaces, information, and analytics in the property markets. It conducts expansive, ongoing research to produce and maintain a comprehensive database of real estate information. It manages its business in two segments: North America, which includes the U.S. and Canada, and International, which primarily includes Europe, Asia-Pacific and Latin America. Its portfolio of information, analytics and online marketplaces is branded and marketed to its customers and marketplace end users under the primary brands of CoStar, LoopNet, Apartments.com, Homes.com, OnTheMarket, Ten-X, STR, Land.com and BizBuySell.
CSGP historical stock prices picture
CoStar Group (CSGP) has the following price history information. Looking back at CSGP historical stock prices for the last five trading days, on June 08, 2026, CSGP opened at $33.31, traded as high as $34.04 and as low as $32.68, and closed at $33.39. Trading volume was a total of 7.71M shares. On June 09, 2026, CSGP opened at $33.05, traded as high as $34.20 and as low as $32.85, and closed at $33.93. Trading volume was a total of 6.63M shares. On June 10, 2026, CSGP opened at $33.58, traded as high as $34.77 and as low as $33.16, and closed at $34.23. Trading volume was a total of 6.28M shares. On June 11, 2026, CSGP opened at $33.53, traded as high as $34.06 and as low as $32.33, and closed at $32.65. Trading volume was a total of 7.75M shares. On June 12, 2026, CSGP opened at $32.57, traded as high as $33.19 and as low as $31.63, and closed at $32.84. Trading volume was a total of 4.91M shares.

CSGP Historical Stock Prices By Date:

CSGP historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into CoStar Group shares, starting with a $10,000 purchase of CSGP, and working forward through the historical stock price information to today.

Growth of $10,000.00
Without Dividends Reinvested

Start date: 06/14/2016
End date: 06/12/2026
Start price/share: $21.07
End price/share: $32.84
Dividends collected/share: $0.00
Total return: 55.86%
Average Annual Total Return: 4.54%
Starting investment: $10,000.00
Ending investment: $15,589.24
Years: 10.00
Date Close
06/08/2026$33.39
06/09/2026$33.93
06/10/2026$34.23
06/11/2026$32.65
06/12/2026$32.84
CSGP is categorized under the Technology sector; below are some other companies in the same sector:

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Also explore: CSGP shares outstanding history

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