CoStar Group

CSGP

Real Estate - Services · Real Estate

Exchange

NASDAQ

Winston Score

Winston is serious

Mixed quality — meaningful strengths and weaknesses.

Data as of Aug 23, 2026 · filings through Jun 30, 2026

How the score breaks down

Quality

Good

Growth

Mixed

Cash Flow

Good

Stability

Strong

Valuation

Good

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Winston Score History

The full picture

CoStar Group runs online marketplaces and databases for real estate. Its main products include CoStar (a data platform for commercial real estate professionals), Apartments.com (a rental listing site for renters and landlords), and LoopNet (a marketplace for buying and selling commercial properties). It serves brokers, landlords, investors, and everyday renters across the United States and several international markets.

The company makes money primarily through subscriptions — brokers and property owners pay recurring fees to access data, analytics, and listing tools. CoStar Group operates mainly in the US but has been expanding into the UK and other European markets. Its large proprietary database of property information, built over decades, is difficult for competitors to replicate quickly. The biggest growth bet right now is Homes.com, a residential real estate portal the company is spending heavily to build into a serious competitor to Zillow — that spending is why operating margins remain very thin despite strong gross margins.

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Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+18.4% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+845.9% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

0.9%ownership

→ Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$1.3B cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Company generates more cash than it spends — no dilution risk from fundraising

Growth + cash flow

CoStar Group is a rare growth stock that's already generating positive cash flow while growing at 18%. The Winston Score doesn't fully credit this transition from "burner" to "earner."

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale

Gross Margin

74.8%

Premium pricing power — 74.8% gross margin

Profit after running costs

Operating Margin

8.2%

Modest — 8.2% operating margin

Return on the money invested

ROCE

0.9%

Weak — 0.9% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales growth

Sales YoY

+22.0%

Fast-growing sales (+22.0% YoY)

Profit growth

EPS YoY

-29.0%

Earnings shrinking (-29.0% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

How steady the profit is

EPS Consistency

2/8 quarters

Earnings rarely grow — volatile business

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Cash Flow

Profit that turns into cash

Cash Conversion

671%

Turns 671% of profit into real cash

Spare cash per sale

FCF Margin

-7.2%

Burning cash (-7.2%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

What it owes vs what it owns

Debt / Equity

0.13

Conservative — low debt load (0.13)

Covers its interest

Interest Cover

5.41x

Adequate interest coverage (5.4x)

Interest coverage between 3 and 8. Profits cover interest several times over.

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Valuation

Price vs profit

P/E Ratio (TTM)

175.6x

no trend

Expensive — P/E 175.6

P/E over 35. The market is pricing in heavy, sustained growth.

Cheaper or dearer next year

P/E vs Forward

+162.3

GROWING

Earnings expected to grow meaningfully — cheaper on forward P/E (175.6 → 13.3)

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Dividends

Not applicable for this business.

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