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$CSGP

CoStar Group Inc

XNASReal EstateServices-Business Services, Nec

$29.54-2.23%$0.6750Prev $30.21LIVE Full chart Live alerts
No recent price bars, the chart lights up when CSGP starts printing.

Why is CSGP down today? It is at $29.54 (-2.23%), and our scanner flagged it 94 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment CSGP spikes, and full due diligence on CSGP — key stats, earnings, dilution and insider activity. Free.

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Our scanner flagged $CSGP 94 times in the last 30 days. Create a free account to track $CSGP, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.

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Key Stats

Price & performance
Price
$29.54
Change today
-2.23%
Previous close
$30.21
52-week range
$25.89 – $97.12
Valuation & dividend
Market cap
$12.24B
Ownership & volume
Shares outstanding
405.2M
SEC 10-Q · Jul 29, 2026
Insider ownership
1.2%
DEF 14A · 2026-04-30
Institutional own.
99.9%
Total held
100.0%
Short interest
16.3M
▲ +7% vs prior · as of 2026-07-15
Days to cover
2.5d
Avg daily volume
5.8M
Classification
Sector
Real Estate
Industry
Services-Business Services, Nec
Exchange
XNAS
Relative volumevs this time of day
5m
0.2x
15m
0.4x
1hthin
0.3x
1D
0.0x

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Why is $CSGP down today?

Here is the latest on CSGP from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for CSGP today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.

Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →
Why is $CSGP moving? →▶ Replay the moveAuto-generated from live scanner data. Not investment advice.
Trading profile⚡ Ultra-low floatShortableEasy to borrowNo SSRBorrow via Alpaca · SSR from Reg SHO 201

Insiders

Insiders buying1 open-market buy8 buys, 4 sells last 3 months (25/28 over 12 months)
Show 12 recent transactions
InsiderActionShares% of positionOwns afterValueDate
Florance Andrew C
Officer
Bought (open market)+83K
0.02% of company
added 4.8%1.81M$2.5M
at $29.89
Aug 4, 26
Cann Cynthia Cammett
Officer
Sold (automatic/other)-1Ksold 4.4%24K$31K
at $28.76
Aug 1, 26
Saint Frederick G.
Officer
Sold (automatic/other)-1Ksold 0.5%278K$41K
at $28.76
Aug 1, 26
Lown Christian M.
Officer
Sold (automatic/other)-6Ksold 4.1%130K$164K
at $29.36
Jul 1, 26
Mccarthy Christine M
Director
Acquired (grant/award)+8Kadded 100%12Kn/aJun 23, 26
Sams Louise S
Director
Acquired (grant/award)+8Kadded 40%29Kn/aJun 23, 26
Musslewhite Robert W
Director
Acquired (grant/award)+8Kadded 45%27Kn/aJun 23, 26
Brunner Angelique G.
Director
Acquired (grant/award)+8Kadded 81%18Kn/aJun 23, 26
Berisford John L
Director
Acquired (grant/award)+8Kadded 100%11Kn/aJun 23, 26
Hill John W
Director
Acquired (grant/award)+8Kadded 45%26Kn/aJun 23, 26
Glaser Rachel C
Director
Acquired (grant/award)+8Kadded 100%12Kn/aJun 23, 26
Cann Cynthia Cammett
Officer
Sold (automatic/other)-461sold 1.8%25K$15K
at $32.04
Jun 15, 26

Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.

$CSGP Sentiment

Neutral
Bearish44Bullish
📰 News: 2 bull · 2 bearToday: -2.2%👥 Community: 0 bull · 0 bear

Blend of news sentiment, today’s move, and community votes. Not investment advice.

$CSGP Activity

News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.

Alert· 1d ago +2.4% vs EMA
$CSGP near 200 EMA: +2.39% from 200 EMA at 9:27 AM ET
at $30.50
Alert· 1d ago +1.66%
$CSGP moved +1.66% in 1 min (Level 1) at 9:27 AM ET
at $30.55
Alert· 1d ago 6.3× RVOL
CSGP hit 6.297x RVOL at 9:27 AM ET
at $30.50
Alert· 2d ago +1.7% vs EMA
CSGP 200EMA (5m) Trending · 83 bars · L3 · +1.69% above EMA · slope +0.42%
at $29.99
Alert· 2d ago +0.2% vs EMA
CSGP 50EMA (5m) Trending · 85 bars · L3 · +0.21% above EMA · slope +0.53%
at $29.99
Alert· 2d ago +0.3% vs EMA
CSGP 200EMA (1m) Trending · 302 bars · L5 · +0.31% above EMA · slope +0.14%
at $29.99
Alert· 2d ago +0.3% vs EMA
CSGP 200EMA (1m) Trending · 302 bars · L5 · +0.31% above EMA · slope +0.14%
at $29.99
Alert· 2d ago 2.0× RVOL
CSGP hit 2.000x RVOL at 3:37 PM ET
at $30.13
Alert· 2d ago +1.5% vs EMA
$CSGP near 200 EMA: +1.52% from 200 EMA at 1:17 PM ET
at $30.07
Alert· 2d ago 4.2× RVOL
CSGP hit 4.232x RVOL at 1:17 PM ET
at $30.07
Alert· 5d ago -0.2% vs EMA
$CSGP near 200 EMA: -0.17% from 200 EMA at 2:13 PM ET
at $28.80
Alert· 5d ago 6.6× RVOL
CSGP hit 6.586x RVOL at 2:13 PM ET
at $28.80
Alert· 5d ago +0.3% vs EMA
$CSGP near 200 EMA: +0.34% from 200 EMA at 1:33 PM ET
at $28.96
Alert· 5d ago 6.2× RVOL
CSGP hit 6.224x RVOL at 1:33 PM ET
at $28.96
Alert· 5d ago 2.6× RVOL
CSGP hit 2.604x RVOL at 11:11 AM ET
at $28.57
Alert· 6d ago +0.7% vs EMA
CSGP 50EMA (1m) Trending · 59 bars · L3 · +0.70% above EMA · slope +0.96%
at $29.32
Alert· 6d ago +0.7% vs EMA
CSGP 50EMA (1m) Trending · 59 bars · L3 · +0.70% above EMA · slope +0.96%
at $29.32
Alert· 6d ago +1.26%
$CSGP moved +1.26% in 1 min (Level 1) at 3:29 PM ET
at $29.41
Alert· 6d ago 4.6× RVOL
CSGP hit 4.641x RVOL at 3:01 PM ET
at $29.05
Alert· 6d ago +0.4% vs EMA
$CSGP near 200 EMA: +0.44% from 200 EMA at 2:33 PM ET
at $28.74
Alert· 6d ago +1.23%
$CSGP moved +1.23% in 1 min (Level 1) at 2:33 PM ET
at $28.75
Alert· 6d ago 42.3× RVOL
CSGP hit 42.259x RVOL at 2:33 PM ET
at $28.74
Alert· 6d ago -1.0% vs EMA
$CSGP near 200 EMA: -0.98% from 200 EMA at 2:18 PM ET
at $28.41
Alert· 6d ago 4.3× RVOL
CSGP hit 4.327x RVOL at 2:18 PM ET
at $28.41
Alert· 6d ago -0.9% vs EMA
$CSGP near 200 EMA: -0.85% from 200 EMA at 1:51 PM ET
at $28.50
News· SEC EDGAR· 7d ago
COSTAR GROUP, INC. filed a Quarterly report (10-Q)
News· SEC EDGAR· 8d ago
COSTAR GROUP, INC. filed an 8-K: Results of Operations
News· SEC EDGAR· 23d ago
COSTAR GROUP, INC. filed an 8-K: Executive / Board Change, Regulation FD Disclosure
News· SEC EDGAR· 42d ago
COSTAR GROUP, INC. filed an 8-K: Executive / Board Change, Shareholder Vote, Regulation FD Disclosure
News· GlobeNewswire Inc.· 80d ago Bullish
PropTech Market Size Expected to Reach USD 165 Billion by 2035 | SNS Insider
News· GlobeNewswire Inc.· 89d ago Bearish
Lumentum Holdings Inc. to Join the Nasdaq-100 Index® Beginning May 18, 2026
News· Benzinga· 161d ago Bearish
Tech Rallies Ahead Of Nvidia Earnings, Bitcoin Jumps 7%: What's Moving Markets Wednesday?
News· Investing.com· 189d ago Bullish
3 Large Cap Stocks Announce Big Buyback Boosts Amid +20% Falls

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CSGP stock FAQ

Why is $CSGP down today?

Here is the latest on CSGP from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for CSGP today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.

What is the CSGP stock price today?

CSGP last traded at $29.54, down 2.23% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).

Where can I see live CSGP alerts?

The CSGP Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged CSGP 94 times in the last 30 days.

What exchange is CSGP on?

CSGP (CoStar Group Inc) trades on XNAS, with a market cap of about $12.24B in the SERVICES-BUSINESS SERVICES, NEC sector.

Is CSGP good for day trading?

That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge CSGP for yourself. This is not investment advice.

Live data from TheDesperateTrader scanner. Not investment advice.