Market Cap
$11.0B
CSGP
COSTAR GROUP, INC.
$27.19 ▼ -1.91%
Prev close $27.72Market cap$11.0B
ConsensusHold
12-mo target$37.30 (+37.3%)
▲ Bullish
Analyst conviction 6/10
Insider Buying Cluster (3 insiders)High Impact Filing (7/10)39 New Institutional Positions11 Institutional ExitsCongressional Activity (1) Software & IT
Snapshot
The big-picture read on CSGP right now — valuation, ownership and activity at a glance.
Cap Size
Large Cap
Analyst Consensus
Buy (57%)
Inst. Holders
50 funds
Inst. Value
$9.5B
Inst. Activity
39 buys / 11 sells
Insider Activity
$8.5M buy / $253.1K sell
Insider Net $
$8.2M
Social Sentiment
50° Neutral
SEC Reports
8
Congressional
4 trades
Price chart 30d -13.0%
Daily candles (open–high–low–close) with volume. Green = up day, red = down day.
No data for this timeframe.
Vol
Recent activity
The latest filings, insider trades, analyst actions, press and options flow — newest first.
Sep 15, 2026 short_interest_report
Short Interest: CSGP down 21% to 14.8M shares
Settlement 2026-09-15 | Days to cover: 2.68 | ≈3.66% of shares outstanding (est.)
Aug 19, 2026 Congress
Aug 16, 2026 SEC Gilbert Cisneros buy
$1,001 - $15,000 — House
CoStar Group (CSGP) saw a mixed institutional cluster in Q2 2026, with 27 buyers accumulating $274.5M in net new positio
INST-CLUSTER — Impact 5/10
CoStar Group CEO Andrew Florance purchased $2.49M of stock on the open market, while the CAO and a director sold a combi
CLUSTER — Impact 3/10
Aug 7, 2026 Insider
Cann Cynthia Cammett sold 4,788 shares
Chief Accounting Officer @ $30.78 ($147.4K)
Aug 5, 2026 Insider
Hill John W sold 3,500 shares
Director @ $30.21 ($105.7K)
Aug 4, 2026 Insider
Jul 13, 2026 SEC FLORANCE ANDREW C bought 83,300 shares
Founder and CEO @ $29.89 ($2.5M)
CoStar Group's CFO Christian Lown is resigning effective July 31, 2026, for an opportunity outside the industry, with no
8-K — Impact 3/10
Analyst ratings buy % -17.4%
How Wall Street rates the stock today, and the latest firm-by-firm actions.
57% rate it Buy or better · 28 analysts
Recent analyst actions
| Date | Firm | Action | Rating | Firm rating |
|---|---|---|---|---|
| Aug 24, 2026 | BMO Capital | MAINTAIN | Market Perform | 53% |
| Jul 29, 2026 | Citigroup | DOWNGRADE | Neutral | 55% |
| Jul 29, 2026 | JP Morgan | MAINTAIN | Overweight | 55% |
| Jul 29, 2026 | William Blair | DOWNGRADE | Market Perform | 51% |
| Jul 29, 2026 | Citizens | MAINTAIN | Market Outperform | 38% |
| Jul 29, 2026 | Wolfe Research | MAINTAIN | Outperform | 52% |
| Jul 29, 2026 | Keefe, Bruyette & Woods | DOWNGRADE | Market Perform | 58% |
| Jul 29, 2026 | BTIG | MAINTAIN | Buy | 53% |
| Jul 29, 2026 | Needham | MAINTAIN | Buy | 50% |
| Jul 14, 2026 | Baird | DOWNGRADE | Neutral | 54% |
Monthly consensus history
| Period | Str. Buy | Buy | Hold | Sell | Str. Sell | Buy % | Distribution |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | 6 | 10 | 11 | 1 | 0 | 57% | |
| Aug 1, 2026 | 6 | 10 | 11 | 1 | 0 | 57% | |
| Jul 1, 2026 | 9 | 12 | 6 | 1 | 0 | 75% | |
| Jun 1, 2026 | 9 | 11 | 5 | 1 | 0 | 77% | |
| May 1, 2026 | 9 | 11 | 6 | 1 | 0 | 74% | |
| Apr 1, 2026 | 9 | 11 | 6 | 1 | 0 | 74% | |
| Mar 1, 2026 | 9 | 11 | 6 | 1 | 0 | 74% | |
| Feb 1, 2026 | 8 | 11 | 7 | 1 | 0 | 70% |
Price targets
Where 20 covering analysts think CSGP trades over the next 12 months.
$37.30 +37.3% upside Strong Buy
Current$27.18 Low$25.00 Median$36.00 High$53.00 20 analysts
$25.00$53.00
Analyst rating Buy· 2.1/5 as of Oct 2, 2026
Social media sentiment mood -16.7%
Retail-investor mood aggregated across social media. 0° = very bearish, 100° = very bullish.
50°
Neutral
BearishNeutralBullish
Recent posts
CoStar Group (CSGP) at $28.77. The market is valuing the commercial real estate business and giving you the rest for almost nothing.
▲ 1 · 💬 0· ⚡ 0.5
CoStar Group (CSGP) at $28.77. The market is valuing the commercial real estate business and giving you the rest for almost nothing.
▲ 1 · 💬 0· ⚡ 0.5
SpaceX IPO sell off ?
▲ 1 · 💬 0· ⚡ 0.5
CoStar Group $CSGP - Activist Proxy Fight & maybe a 'heads I win, tails I don't lose too much' bet..
▲ 1 · 💬 0· ⚡ 0.5
Reports & filings
AI-scored summaries of recent SEC filings and press releases, with sentiment and impact.
8 SEC filing reports analyzed · 3 bullish, 0 bearish, 1 mixed, 4 neutral · avg impact 5.0/10.
MIXEDINST-CLUSTER5/10
CoStar Group (CSGP) saw a mixed institutional cluster in Q2 2026, with 27 buyers accumulating $274.5
Aug 16, 2026
NEUTRALCLUSTER3/10
CoStar Group CEO Andrew Florance purchased $2.49M of stock on the open market, while the CAO and a d
Aug 10, 2026
NEUTRAL8-K3/10
CoStar Group's CFO Christian Lown is resigning effective July 31, 2026, for an opportunity outside t
Jul 13, 2026
BULLISH8-K6/10
CoStar Group has agreed to acquire Zonda, a provider of new home construction data, software, and on
May 29, 2026
Upcoming & catalyst events
Scheduled dates plus disclosed catalysts — earnings, dividends, enforcement, FDA and clinical-trial events. Colored dot = impact.
Sep 15, 2026
short_interest_report
Short Interest: CSGP down 21% to 14.8M shares
Settlement 2026-09-15 | Days to cover: 2.68 | ≈3.66% of shares outstanding (est.)
Sep 15, 2026
short_volume
Short Volume: CSGP — 60.3% short (1.4M / 2.4M)
Short: 1,424,243 | Exempt: 371 | TRF Vol: 2,361,614 | Short Ratio: 60.3% | Off-exchange volume (dark pool + OTC)
Sep 11, 2026
short_volume
Short Volume: CSGP — 58.7% short (1.6M / 2.8M)
Short: 1,632,021 | Exempt: 13,446 | TRF Vol: 2,779,534 | Short Ratio: 58.7% | Off-exchange volume (dark pool + OTC)
Sep 7, 2026
dark_pool
Dark Pool: CSGP — 5.9M shares, 97,274 trades
Week starting 2026-09-07. Total ATS volume: 5,875,618 shares across 97,274 trades.
Sep 3, 2026
ftd
FTD: CSGP — 19,552 shares ($0.6M) failed to deliver
Settlement: 20260903, Price: $31.26, FTD Value: $611,195.52, COSTAR GROUP INC
Earnings estimates
Forecast earnings per share and revenue by period — and whether estimates are rising.
| Period | EPS Est. | Range | Growth | 30d Rev | Up/Dn | Revenue | # |
|---|---|---|---|---|---|---|---|
| Current Q | $0.34 | $0.33–$0.36 | 48.5% | -0.3% | 0↑ 16↓ | $1.0B | 4 |
| Next Q | $0.47 | $0.44–$0.50 | 52.8% | +0.8% | 14↑ 1↓ | $1.0B | 3 |
| Current FY | $1.35 | $1.34–$1.37 | 55.7% | -0.6% | 7↑ 8↓ | $3.8B | 4 |
| Next FY | $1.78 | $1.60–$1.92 | 31.2% | -0.0% | 4↑ 13↓ | $4.2B | 4 |
Current-quarter EPS estimate — revision history
| When | EPS estimate | Change vs now |
|---|---|---|
| Current | $0.342 | — |
| 7d ago | $0.341 | +0.000 |
| 30d ago | $0.343 | -0.001 |
| 60d ago | $0.336 | +0.006 |
| 90d ago | $0.375 | -0.033 |
Institutional ownership
Which big funds own CSGP (from quarterly 13F filings) and who is adding or trimming.
50 institutional holders with $9.5B total value (333,606,372 shares) as of 2026-Q2. Top holders: VANGUARD, BlackRock,, VANGUARD. Net buying activity: 39 institutions added/increased vs 11 reduced.
Top holders — 2026-Q2
| Fund | Shares | Value | % Tracked | Last move |
|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 37,914,844 | $1.1B | 11.4% | — |
| BlackRock, Inc. | 33,813,969 | $957.6M | 10.1% | — |
| VANGUARD CAPITAL MANAGEMENT LLC | 26,683,792 | $755.7M | 8.0% | — |
| BAMCO INC /NY/ | 21,626,763 | $612.5M | 6.5% | ADD +32.6% |
| STATE STREET CORP | 18,410,876 | $521.4M | 5.5% | — |
| Capital International Investors | 16,643,016 | $471.3M | 5.0% | — |
| BAILLIE GIFFORD & CO | 13,154,165 | $372.5M | 3.9% | — |
| GEODE CAPITAL MANAGEMENT, LLC | 12,166,469 | $343.3M | 3.6% | — |
| AKRE CAPITAL MANAGEMENT LLC | 11,699,396 | $331.3M | 3.5% | — |
| POLEN CAPITAL MANAGEMENT LLC | 8,759,314 | $248.1M | 2.6% | TRIM -30.3% |
Recent position changes
| Fund | Action | Prev | Current | Change | Value |
|---|---|---|---|---|---|
| BAMCO INC /NY/ | ADD | 16,314,175 | 21,626,763 | +32.6% | $612.5M |
| POLEN CAPITAL MANAGEMENT LLC | TRIM | 12,570,368 | 8,759,314 | -30.3% | $248.1M |
| EdgePoint Investment Group Inc. | NEW | — | 5,950,002 | — | $168.5M |
| NORGES BANK | NEW | — | 5,949,912 | — | $168.5M |
| Meritage Group LP | ADD | 3,329,006 | 5,394,164 | +62.0% | $152.8M |
| JPMORGAN CHASE & CO | DOUBLED | 1,849,545 | 4,939,994 | +167.1% | $145.4M |
| GOLDMAN SACHS GROUP INC | TRIM | 9,245,812 | 5,129,484 | -44.5% | $145.3M |
| FEDERATED HERMES, INC. | DOUBLED | 1,297,958 | 4,426,727 | +241.1% | $125.4M |
| PRINCIPAL FINANCIAL GROUP INC | NEAR_EXIT | 17,696,192 | 3,790,794 | -78.6% | $107.4M |
| Qube Research & Technologies Ltd | NEW | — | 3,218,369 | — | $91.1M |
Insider activity
Buying and selling by company executives and directors (SEC Form 4).
16 insiders, 50 transactions. Net $8.2M — $8.5M bought, $253.1K sold.
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 7, 2026 | Cann Cynthia Cammett | Chief Accounting Officer | SELL | 4,788 | $30.78 | $147.4K |
| Aug 5, 2026 | Hill John W | Director | SELL | 3,500 | $30.21 | $105.7K |
| Aug 4, 2026 | FLORANCE ANDREW C | Founder and CEO | BUY | 83,300 | $29.89 | $2.5M |
| Aug 1, 2026 | SAINT FREDERICK G. | President, Marketplaces | TAX W/H | 1,436 | $28.76 | $41.3K |
| Aug 1, 2026 | Cann Cynthia Cammett | Chief Accounting Officer | TAX W/H | 1,077 | $28.76 | $31.0K |
| Jul 31, 2026 | Cann Cynthia Cammett | Chief Accounting Officer | AWARD | 26,078 | — | — |
| Jul 31, 2026 | Rossmann Robin Jack | Chief Financial Officer | AWARD | 34,771 | — | — |
| Jul 1, 2026 | LOWN CHRISTIAN M. | Chief Financial Officer | TAX W/H | 5,597 | $29.36 | $164.3K |
| Jun 23, 2026 | McCarthy Christine M | Director | AWARD | 8,262 | — | — |
| Jun 23, 2026 | Sams Louise S | Director | AWARD | 8,262 | — | — |
Congressional trades
CSGP trades disclosed by members of Congress, with disclosure delay.
1 members · 3 buys / 1 sells
| Date | Member | Party | Chamber | Type | Amount | Asset | Disclosed |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | Gilbert Cisneros | D | HOUSE | BUY | $1,001 - $15,000 | CoStar Group Inc | Sep 11, 2026(24d) |
| Apr 14, 2026 | Gilbert Cisneros | D | HOUSE | SELL | $1,001 - $15,000 | CoStar Group Inc | May 11, 2026(28d) |
| Mar 13, 2026 | Gilbert Cisneros | D | HOUSE | BUY | $1,001 - $15,000 | CoStar Group Inc | Apr 8, 2026(27d) |
| Jan 28, 2026 | Gilbert Cisneros | D | HOUSE | BUY | $1,001 - $15,000 | CoStar Group Inc | Feb 16, 2026(20d) |
Short interest & halts
FINRA semi-monthly short positions, Reg SHO threshold status, and recent trading halts for CSGP.
Shares short
14,839,529
Settlement Sep 15, 2026
Change vs prior
-21.5%
Semi-monthly cycle
Days to cover
2.7
At avg daily volume
Of shares outstanding
≈3.7%
Estimate — not % of float
All CSGP filing & press-release reports (8)
- INST-CLUSTER reportAug 16, 2026
- CLUSTER reportAug 10, 2026
- 8-K reportJul 13, 2026
- 8-K reportMay 29, 2026
- DEFA14A reportMay 18, 2026
- CLUSTER reportMar 9, 2026
- CLUSTER reportMar 3, 2026
- 8-K reportFeb 24, 2026