About CoStar Group, Inc. (CSGP)
CoStar Group, Inc. is a Real Estate Services company operating in the Real Estate sector.
CSGP trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .
Key Statistics
- Current Price
- $30.17
- Market Cap
- $12.14B
- 52-Week High
- $70.63
- 52-Week Low
- $25.89
- Sector
- Real Estate
- Industry
- Real Estate Services
$1,000 Invested in CoStar Group, Inc. (CSGP)
How much would $1,000 invested in CSGP be worth today?
What would $1,000 invested in CSGP 1 year ago be worth today?
A $1,000 investment in CoStar Group, Inc. (CSGP) in 2025 would be worth $433 as of November 2026, representing a -56.7% total return.
What would $1,000 invested in CSGP 3 years ago be worth today?
A $1,000 investment in CoStar Group, Inc. (CSGP) in 2023 would be worth $426 as of November 2026, representing a -57.4% total return.
What would $1,000 invested in CSGP 5 years ago be worth today?
A $1,000 investment in CoStar Group, Inc. (CSGP) in 2021 would be worth $304 as of November 2026, representing a -69.6% total return.
What would $1,000 invested in CSGP 10 years ago be worth today?
A $1,000 investment in CoStar Group, Inc. (CSGP) in 2016 would be worth $1,439 as of November 2026, representing a +43.9% total return.
What would $1,000 invested in CSGP at IPO be worth today?
A $1,000 investment in CoStar Group, Inc. (CSGP) at IPO would be worth $32,838 as of November 2026, representing a +3183.8% total return.
Monthly Returns Heatmap
Over the past 28+ years (339 months), CoStar Group, Inc. (CSGP) has averaged a monthly return of +1.76% with a median return of +1.37%. The stock had 189 positive months (56%) and 150 negative months (44%). The best month in CSGP's history was January 1999 with a +86.1% return, while the worst was August 1998 at -38.4%. Historically, March tends to be the strongest month (averaging +5.4%), and August the weakest (-3.7%).
CSGP's longest winning streak was 9 consecutive months of gains, while its longest losing streak was 11 consecutive months of losses. The best full year was 1999 with a cumulative return of +163.2%, and the worst was 2008 at -29.7%.
Annual Returns
Over 28 years of trading history, CoStar Group, Inc. (CSGP) has delivered an average annual return of +20.89% with a median return of +11.65%. The compound annual growth rate (CAGR) is +12.01%. The stock posted gains in 16 years (57%) and losses in 12 years (43%).
CSGP's best year was 1999 with a +184.16% gain, while the worst was 2026 at -55.13%. The longest streak of consecutive positive years was 5, and the longest losing streak was 3 years. CSGP achieved double-digit gains (10%+) in 15 years. It suffered double-digit losses in 7 years.
| Year | Return | Start | End |
|---|---|---|---|
| 2026 | -55.13% | $67.24 | $30.17 |
| 2025 | -6.08% | $71.59 | $67.24 |
| 2024 | -18.08% | $87.39 | $71.59 |
| 2023 | +13.08% | $77.28 | $87.39 |
| 2022 | -2.21% | $79.03 | $77.28 |
| 2021 | -14.50% | $92.43 | $79.03 |
| 2020 | +54.48% | $59.83 | $92.43 |
| 2019 | +77.36% | $33.73 | $59.83 |
| 2018 | +13.60% | $29.69 | $33.73 |
| 2017 | +57.54% | $18.85 | $29.69 |
| 2016 | -8.81% | $20.67 | $18.85 |
| 2015 | +12.56% | $18.36 | $20.67 |
| 2014 | -0.51% | $18.46 | $18.36 |
| 2013 | +106.53% | $8.94 | $18.46 |
| 2012 | +33.93% | $6.67 | $8.94 |
| 2011 | +15.93% | $5.76 | $6.67 |
| 2010 | +37.80% | $4.18 | $5.76 |
| 2009 | +26.81% | $3.29 | $4.18 |
| 2008 | -30.29% | $4.72 | $3.29 |
| 2007 | -11.78% | $5.36 | $4.72 |
| 2006 | +24.07% | $4.32 | $5.36 |
| 2005 | -6.52% | $4.62 | $4.32 |
| 2004 | +10.74% | $4.17 | $4.62 |
| 2003 | +126.02% | $1.85 | $4.17 |
| 2002 | -23.16% | $2.40 | $1.85 |
| 2001 | +1.63% | $2.36 | $2.40 |
| 2000 | -34.15% | $3.59 | $2.36 |
| 1999 | +184.16% | $1.26 | $3.59 |
Frequently Asked Questions: CSGP
What sector is CSGP in? ▼
CSGP operates in the Real Estate sector, specifically in the Real Estate Services industry.
How has CSGP performed historically? ▼
Over 28 years of trading history, CSGP has posted gains in 16 years (57% of the time). The best year was 1999 with a +184.2% return. Past performance does not guarantee future results.
How can I invest in CSGP? ▼
You can invest in CSGP through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold CSGP.
Last updated: 11/1/2026