$CSGP
CoStar Group Inc
XNAS•Real Estate•Services-Business Services, Nec
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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Key Stats
- Price
- $29.54
- Change today
- -2.23%
- Previous close
- $30.21
- 52-week range
- $25.89 – $97.12
- Market cap
- $12.24B
- 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
- Sector
- Real Estate
- Industry
- Services-Business Services, Nec
- Exchange
- XNAS
- 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 →Insiders
Insiders buying1 open-market buy8 buys, 4 sells last 3 months (25/28 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
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) | -1K | sold 4.4% | 24K | $31K at $28.76 | Aug 1, 26 |
Saint Frederick G. Officer | Sold (automatic/other) | -1K | sold 0.5% | 278K | $41K at $28.76 | Aug 1, 26 |
Lown Christian M. Officer | Sold (automatic/other) | -6K | sold 4.1% | 130K | $164K at $29.36 | Jul 1, 26 |
Mccarthy Christine M Director | Acquired (grant/award) | +8K | added 100% | 12K | n/a | Jun 23, 26 |
Sams Louise S Director | Acquired (grant/award) | +8K | added 40% | 29K | n/a | Jun 23, 26 |
Musslewhite Robert W Director | Acquired (grant/award) | +8K | added 45% | 27K | n/a | Jun 23, 26 |
Brunner Angelique G. Director | Acquired (grant/award) | +8K | added 81% | 18K | n/a | Jun 23, 26 |
Berisford John L Director | Acquired (grant/award) | +8K | added 100% | 11K | n/a | Jun 23, 26 |
Hill John W Director | Acquired (grant/award) | +8K | added 45% | 26K | n/a | Jun 23, 26 |
Glaser Rachel C Director | Acquired (grant/award) | +8K | added 100% | 12K | n/a | Jun 23, 26 |
Cann Cynthia Cammett Officer | Sold (automatic/other) | -461 | sold 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
NeutralBlend 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.


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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.