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10 /100
LOW RISK
Score updated Oct 13, 2026

CSGP — CoStar Group, Inc. Dilution Risk Tracker

Track CSGP dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of October 13, 2026, CoStar Group, Inc. (CSGP) has a DilutionWatch DilutionScore of 10/100, rated LOW dilution risk. CoStar Group, Inc. has a market capitalization of $11.84B, 405.20M shares outstanding, 10 institutional holders tracked.

This page includes automatically generated factual summaries from DilutionWatch data. It is not financial advice, not investment research, and not a recommendation. Do your own research. Read the full disclaimer and terms of service.

Score Breakdown

📋 Offering Ability
20
💰Cash Runway—
📊 Float Risk
2
⚠️ Warrant Exposure
15
🔄 Convertible Debt
15

Dilution Forecast

☀️
Clear
No significant dilution signals
model est. 0%
No significant dilution signals detected for CSGP.
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Market Data

Market Cap$11.84B
Shares Outstanding405.20M
Float402.82M
Cash$1.27B
Debt$994.00M
Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

FieldCurrent ValueBasis
DilutionScore10/100DilutionWatch score record
Shares Outstanding405.20MVerified float table or market cache
Public Float402.82MVerified float table or market cache
Market Cap$11.84BMarket data cache
Cash RunwayNot applicable / unavailableDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding WarrantsNone in current score inputsSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 1.

Recent SEC source mix: 4 1.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

10 institutional holders · 212.82M shares
#1 Vanguard Group Inc 70.11M shares
#2 Blackrock Inc. 33.97M shares
#3 BAMCO Inc. 19.50M shares
+ 7 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest13.28M
Days to Cover2.0
% of Float3.3%
FINRA data as of Sep 30, 2026

Recent SEC Activity

4 INSIDER TRANSACTION 2026-06-24
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual CSGP Dilution Snapshot

CoStar Group, Inc. (CSGP) has a DilutionScore of 10/100, rated Low dilution risk. Score date: October 13, 2026.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

CSGP's DilutionScore has held steady at 10/100 (Low risk) for 89 consecutive days across the tracked period.

Period Score Risk Level Duration
Jul 16 – Oct 13, 202610/100LOW89 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

CSGP shares outstanding have decreased 2.7% from 419.79M (Mar 2026) to 408.36M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 09, 2026408.36M402.82M▼ 0.05%
May 04, 2026408.36M403.02M▼ 0.04%
May 02, 2026408.36M403.17M▼ 2.72%
Mar 11, 2026419.79M414.45M▲ 0.02%
Mar 05, 2026419.79M414.36M▼ 0.01%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

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