TotalMarketCap

Costar Group

CSGPNasdaq United StatesFinanceReal Estate

Market cap

$12.913 B

$32.10 -1.49%

Close of 6 Nov 2026

As of 6 Nov 2026, Costar Group (CSGP) has a market capitalization of $12.9B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$3.25B

#862 by revenue

Earnings

$6.50M

#2120 by earnings

Shares outstanding

402,337,328

Latest filing cover page

P/E ratio

1986.6

Cap ÷ net income

Real Estate, ranked by market cap

All 58 →
  1. #4Jones Lang LasalleJLL$17.1B
  2. #5Invitation HomesINVH$15.9B
  3. #6Costar GroupCSGP$12.9B
  4. #7Terreno RealtyTRNO$7.37B
  5. #8CompassCOMP$6.97B

What if Costar Group were worth as much as…

Open the what-if tool →

Gold $28.2T

$70,182.09

Per share 2,187× higher

Bitcoin $1.53T

$3,797.43

Per share 118× higher

Apple $5.02T

$12,466.61

Per share 388× higher

Or at a round number

$20.0B$50.0B$100.0B$200.0B

Where these numbers come from

Share counts and financials for Costar Group are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.