ALTSTATION.IO

CoStar Group, Inc. (CSGP) Stock Analysis

By Nova Skye | AltStation.io | Updated October 22, 2026

Price

$32.84

Change

-0.62%

Market Cap

$13.31B

Avg Volume

6.6M

Company Overview

Headquartered in Arlington, Virginia, CoStar Group operates in the Real Estate Services industry, selling property databases, analytics, and digital marketplaces. Founded in 1986, the company charges recurring subscriptions for tools like CoStar Property, CoStar Sales, and CoStar Leasing to commercial brokers, lenders, REITs, and appraisers. It also operates major listing and auction marketplaces, including LoopNet for commercial properties, Ten-X for online auctions, BizBuySell for business sales, and Homes.com for residential listings. Its operations span six geographic regions, including the United States, Canada, Europe, Latin America, Australia, and the Asia Pacific.

CoStar is the dominant market leader in commercial real estate data, backed by nearly four decades of proprietary lease, transaction, and tenant tracking. That exhaustive database creates high switching costs and gives the core business an exceptionally wide competitive moat. The main threat comes from its expansion beyond commercial real estate. Pushing into residential listings with Homes.com pits CoStar against established consumer listing portals, requiring aggressive capital deployment to win traffic and real estate agent adoption.

Right now, CoStar is executing a major strategic pivot from a pure commercial data provider into a broad real estate marketplace powerhouse. The company is actively investing to scale Homes.com while monetizing specialized assets like Land.com, Apartamentos.com, and hospitality benchmarking tools. It relies on durable subscription cash flow from its core CoStar and LoopNet platforms to fund this consumer expansion. The strategy is high-conviction: use a high-margin commercial data monopoly to bankroll a permanent position in residential real estate.

Key Financials

Market Cap

$13.31B

Revenue

$3.56B

EBITDA

$394.00M

Gross Margin

78.7%

Profit Margin

2.1%

Revenue Growth

18.4%

Total Cash

$1.27B

Total Debt

$1.16B

Free Cash Flow

$412.70M

52-Week Price Performance Analysis

Price Statistics

P/E Ratio

182.47

Forward P/E

18.53

Beta

0.80

52-Week High

$79.08

52-Week Low

$25.89

EPS

$0.18

50-Day Avg

$30.37

200-Day Avg

$37.90

Price/Book

1.68

Technical Analysis

CSGP trades at $32.84, 58.40% below its $79.08 52-week high and 27.08% above its $25.89 low. The stock sits just 13% of the way from the bottom of its 52-week range, so the long-term chart remains damaged. Near-term momentum is stronger, with gains of 9.27% over five trading days and 16.42% over 20 trading days. The price is 12.25% above its $29.31 20-day moving average. Support is $26.95, while $33.05 is the immediate resistance level.

Recent News and Developments

Homes.com reports higher prices as sales weaken

Homes.com said the national median sale price rose 0.6% year over year to $386,000 in September. Sales fell 6%, while active listings increased 1.9%, pointing to resilient pricing despite weaker demand. Source: CoStar Group

CoStar data shows retail construction retreat

CoStar said 58.3 million square feet of U.S. retail space was under construction in the third quarter, down from 60.6 million in Q2. New starts dropped to 7.7 million square feet, their lowest quarterly level since at least 2016. Source: CoStar Group

BizBuySell transactions fall 7%

CoStar-owned BizBuySell reported 2,132 business transactions in Q3, down 7% year over year. The median sale price increased 17% to $350,000, but buyer and seller confidence fell to 49 and 47. Source: CoStar Group

Market Sentiment and Analyst Recommendations

Bull Case

Revenue is $3.56 billion and growing 18.4%, which is the strongest fundamental argument for owning CSGP. The company has $1.27 billion in cash against $1.16 billion in debt, giving it more cash than debt. Its data reaches several property markets through CoStar, Homes.com, and CoStar-owned BizBuySell. Homes.com reported a national median sale price of $386,000 in September, up 0.6% year over year despite a 6% decline in sales. Analysts rate the stock a buy, with 20 analysts setting an average target of $37.40 and a high estimate of $53.00. With the stock at $32.84 and 58.40% below its 52-week high, buyers are paying far less than the market demanded at the peak while still getting 18.4% revenue growth.

Bear Case

The P/E ratio is 182.47, an aggressive valuation even with revenue growing 18.4%. The stock’s 58.40% decline from its 52-week high shows how quickly investors can punish that valuation. Housing demand is soft: September sales fell 6% while active listings increased 1.9%. BizBuySell reported 2,132 third-quarter transactions, down 7% year over year, while buyer and seller confidence fell to 49 and 47. U.S. retail space under construction dropped from 60.6 million square feet in the second quarter to 58.3 million in the third, and new starts fell to 7.7 million square feet. CSGP needs strong execution because weak property activity and a 182.47 P/E leave little room for disappointment.

What to Watch

The first technical test is $33.05, the 30-day high and immediate resistance level. A sustained move above that level would support the recent 9.27% five-day and 16.42% 20-day momentum. If the stock loses its $29.31 20-day moving average, the rebound is weakening; $26.95 is the next stated support level. Investors should track whether revenue growth holds near 18.4%, because a 182.47 P/E demands continued expansion. Watch the next housing update for improvement from September’s 6% sales decline and the next BizBuySell report for a reversal of the 7% transaction decline. Retail construction is another pressure point: activity needs to improve from 58.3 million square feet under construction and 7.7 million square feet of new starts to strengthen the operating backdrop.

Analyst Consensus

BUY

Based on 20 analyst opinions

Low Target

$25.00

Mean Target

$37.40

High Target

$53.00

Earnings and Financial Data

Sector

Real Estate

Industry

Real Estate Services

Employees

8,441

Earnings & Dividends

Next Earnings

Oct 27, 2026

EPS (Trailing)

$0.18

Dividend Yield

None

Payout Ratio

Frequently Asked Questions

Is CSGP a good stock to buy?

The analyst recommendation is buy based on 20 analysts, and revenue is growing 18.4%. Takeaway: the growth case is credible, but the 182.47 P/E makes CSGP a high-expectation stock.

What is CSGP’s analyst price target?

The average analyst target is $37.40, with estimates ranging from $25.00 to $53.00. Takeaway: analysts see upside from the $32.84 price on average, but the wide range signals substantial uncertainty.

Is CSGP overvalued?

CSGP trades at a P/E ratio of 182.47 while producing 18.4% revenue growth. Takeaway: the valuation is demanding and requires strong growth to continue.

What are CSGP’s support and resistance levels?

Near-term support is $26.95, and near-term resistance is $33.05. Takeaway: $33.05 is the breakout level, while $26.95 is the key downside threshold.

How strong is CoStar Group’s balance sheet?

CoStar Group has $1.27 billion in total cash and $1.16 billion in total debt. Takeaway: cash exceeds debt, which gives the company a relatively balanced financial position.

Related Stock Reports

Disclaimer: This report is for informational purposes only and does not constitute financial advice. The analysis and opinions expressed are those of AltStation.io and should not be relied upon as the sole basis for investment decisions. Always conduct your own research and consult with a qualified financial advisor before making investment decisions. Past performance does not guarantee future results. Updated October 22, 2026.