Insider buying last 90 days
$2.49Min 1 open-market purchase
| Filed | Insider | Type | Value |
|---|---|---|---|
| Aug 5 | Andrew C Florance Founder and CEO | Purchase | $2.49M |
From Form 4 filings, dated to when each was filed.
NASDAQ: CSGP
CoStar (CSGP) Stock Analysis & Forecast
Sep 28 close
$27.02−1.07 (−3.8%)
Gekko Brief
AI summaryCoStar fell 3.8% this week after its Commercial Repeat Sale Indices projected a sharp drop in commercial property deliveries, with quarterly deliveries ending September 2026 expected to fall 63% from the fourth-quarter 2023 peak, pointing to a cooler construction and leasing environment. The stock was also back in focus following its removal from the FTSE All-World Index on 19 September 2026, and Argus lowered its target price for CSGP to $27.00. Separately, the company highlighted Tampa and Columbus as top small-bay industrial markets, and commentary pointed to a shift toward profit discipline alongside continued integration of Homes.com and Zonda.
CSGP closed at $27.02, down 3.8%, sitting below both its 50-day average of $30.35 and its 200-day average of $40.86, with the 50-day itself below the 200-day. The GekkoIndex reads 66.5, placing the stock in the Accumulation zone. Price sits 8% below Gekko Fair Value of $29.37.
Earnings are scheduled for 27 October 2026 after close, 28 days out, falling inside a typical 20-trading-day holding window; the last report on 28 July 2026 beat estimates ($0.25 vs $0.21) with a 2.3% reaction, and average absolute reactions have run 6.7%. Over the last 90 days there was 1 insider purchase and 1 Congress buy with no sales. Seasonality over 5 years shows the next 20 trading days averaging +0.9%, rising in 2 of those years. Analyst consensus among 14 firms stands at 6 buy, 7 hold, 1 sell, with a consensus target of $37.30.
Written by AI and checked automatically against the figures on this page. Generated Sep 29, 2026 from the data above.
CoStar price vs fair value
Close $27.02200-day averageGekko Fair Value $29.37
CoStar quick facts
- Market cap
- $10.95B
- P/E ratio
- 156.1
- Forward P/E
- 18.3
- EPS, TTM
- $0.18
- Revenue, TTM
- $3.56B
- Profit margin
- 2.1%
- Dividend yield
- —
- Beta
- 0.75
- Volume
- 5.18M avg 7.59M
- 1-year return
- −67.5%
- Typical daily move
- ±4.2%
- Typical 20-day move
- ±5.9%
- 50-day average
- $30.35
- 200-day average
- $40.86
- Next earnings
- Oct 27 after close
- Shares outstanding
- 405.2M
CoStar swing-trade checklist
CoStar scores 3 supportive, 1 mixed and 2 headwinds across the 6 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
3 supportive1 mixed2 headwinds
- Trendheadwind
Below 50 and 200-day
Close $27.02 is below the 50-day ($30.35) and 200-day ($40.86) averages, and the 50-day is below the 200-day.
See the chart - GekkoIndexsupportive
66.5, Accumulation
Reading 66.5 is in the Accumulation zone.
See the GekkoIndex - Fair valuesupportive
8.0% below
Price is 8% below Gekko Fair Value (more than 5% below).
See fair value - Smart moneysupportive
Leans bullish
Last 90 days: 1 open-market insider purchase; Congress 1 buy / 0 sales.
See smart money - Earnings riskheadwind
Reports in 28 days
Reports on Oct 27, 2026, 28 days away — inside a typical 20-trading-day hold.
See earnings - Seasonalitymixed
+0.9% on average
From this point in the calendar, the next 20 trading days averaged +0.9% over 5 years, rising in 2 of them.
See seasonality
A description of current data, not a recommendation. How this page works
CoStar stock chart and price history
CoStar closed at $27.02 on Sep 28, 2026, −67.5% over the past year, inside a 52-week range of $25.89 to $85.24.
Close50-day average200-day averageVolume
Use the left and right arrow keys to read daily values.
Performance Breakdown
- 1 month
- −13.8%
- 3 months
- −7.8%
- 6 months
- −32.1%
- 1 year
- −67.5%
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CoStar GekkoIndex: the smart money zone
CoStar’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 66.5, in the Accumulation zone, up 2.2 points over five sessions.
66.5Accumulation
Up 2.2 points over five sessions.
Reading for Sep 28, 2026
What followed past readings in each zone
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 76 | 0.0% | −5.1% | ||
| Accumulation (current zone) | 272 | −0.8% | −3.1% | ||
| Neutral | 301 | −0.8% | −1.5% | ||
| Distribution | 14 | +0.5% | −7.1% | ||
| Selling | 9 | Too few readings yet | |||
Average CSGP share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.3% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
See every daily GekkoIndex reading plotted over the CSGP price, zone by zone.Track CSGP in Gekko
Is CoStar stock overvalued? Gekko Fair Value
CoStar trades 8.0% below Gekko Fair Value of $29.37, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what CoStar shares are worth, recalculated every trading day.
$29.37
Gekko Fair Value, Sep 29, 2026
8.0% Undervalued
Gekko Fair Value on every chart, with the gap to price updating daily.Open CSGP in Gekko
CoStar insider and Congress trading
Insiders filed 1 open-market purchase in CoStar worth $2.49M, and members of Congress disclosed 1 purchase and 0 sales, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
Congress trades last 90 days
1trade disclosed: 1 purchase and 0 sales.
| Member | Amount | Disclosed |
|---|---|---|
| Gilbert Cisneros House, CA, purchase | $1,001 - $15,000 | Sep 11 traded Aug 19 |
From congressional disclosures, which report amounts as ranges.
Buybacks
CoStar has been buying back its own shares.
- Bought back, quarter ended Jun 30, 2026
- $84.00M
- As a share of market cap
- 0.77%
- Trailing four quarters
- $1.12B
From company filings.
Hedge funds and billionaires quarter ended Jun 30
3of the funds Gekko tracks hold CSGP.
1added0opened2trimmed1sold out
Which funds are on each side, name by name.Unlock in Gekko
CoStar earnings: next date and track record
CoStar reports on Oct 27, 2026, after the close (28 days away), and beat the EPS estimate in 8 of its last 8 reports.
Next earnings report
Oct 27, 2026
Expected after the close, 28 days away
- EPS estimate
- $0.34
- Revenue estimate
- $944.9M
8 of 8reports beat the EPS estimate
±6.7%average move across the report
3 of 8reports followed by a gain
Share-price move across each report
Last earnings call, Jul 28, 2026 AI summary
- What they said
- CoStar Group reported a strong Q2 2026 with revenue of $925 million (up 18% YoY) and adjusted EBITDA of $184 million (more than doubled YoY), marking a profitability inflection and the second-highest quarterly adjusted EBITDA in company history. Management confirmed full-year adjusted EBITDA guidance of $780–$820 million and expects the highest full-year adjusted EBITDA in company history. Commercial revenue grew 8% to $481 million; Residential revenue grew 33% to $444 million with Homes (residential marketplace) delivering its first profitable quarter (record adjusted EBITDA of $12 million). Net new bookings were $69 million (up 3% sequentially, down ~26% YoY), with Ten-X transactional softness cited as a meaningful driver of the revenue guide reduction. Management emphasized disciplined cost control (operating costs up only 2% YoY and a $100M reduction in projected 2026 expense base) and investments in AI and product launches. Discussion during Q&A focused on bookings decline drivers (Ten-X, Homes.com optimization, competition in apartments), salesforce productivity and field vs. inside sales strategy, marketing mix shifts for Homes.com, seasonality of marketing spend, and AI/token cost management (currently below budget). Leadership transition was announced (CFO Chris Lown departing; Robin Rossmann promoted). Overall tone combined strong operational performance and margin gains with measured caution around bookings and transactional segments.
- Guidance
- Confirmed full year adjusted EBITDA guidance of $780 million to $820 million for 2026. Management expects to deliver the highest full-year adjusted EBITDA in company history in 2026 and two consecutive quarters of highest-ever adjusted EBITDA. They noted a reduced projected 2026 expense base by roughly $100 million. (No explicit net bookings or 2027 guidance was provided.)
- Risks flagged
- Ten-X transactional softness (transactional revenue volatility) was cited as the primary driver of the revenue guide reduction. Booking declines (net new bookings down YoY) and competitive pressure in the Apartments.com market, combined with macro headwinds (elevated vacancies) that increase price sensitivity among customers. Execution risks in scaling Homes.com (salesforce optimization and ramp timing) and seasonality in marketing spend. Token/AI cost pressure is acknowledged as a potential risk, though currently below budget.
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Jul 28, 2026 | $0.25 est $0.21 | $925.0M est $928.8M | +2.3% |
| Apr 28, 2026 | $0.23 est $0.18 | $897.0M est $896.7M | −5.8% |
| Feb 24, 2026 | $0.31 est $0.27 | $900.0M est $892.2M | −6.5% |
| Oct 28, 2025 | $0.23 est $0.18 | $833.6M est $813.2M | −9.7% |
| Jul 22, 2025 | $0.01 est −$0.04 | $781.3M est $772.2M | +7.0% |
| Apr 29, 2025 | $0.15 est $0.11 | $732.2M est $716.8M | −9.3% |
| Feb 18, 2025 | $0.25 est $0.22 | $709.4M est $701.0M | +7.0% |
| Oct 22, 2024 | $0.22 est $0.16 | $692.6M est $695.9M | −5.9% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
CoStar stock forecast and analyst price targets
Analysts’ average 12-month price target for CoStar is $37.30, +38.0% from the last close, from 14 firms rating the stock in the last 90 days.
$37.30consensus 12-month target, +38.0% from the last close
Now $27.02Avg $37.30
Low $25High $52
Each firm’s latest rating in the last 90 days: 14 firms.
Latest analyst actions
| Date | Firm | Target | vs price |
|---|---|---|---|
| Sep 15 | Goldman Sachs | $40 | +48.0% |
| Sep 4 | RBC Capital | $34 | +25.8% |
| Aug 27 | William Blair | — | — |
| Aug 24 | Wells Fargo | $25 | −7.5% |
| Aug 24 | BMO Capital | $33 | +22.1% |
−3.1%average 20-day move after past Accumulation readings
+0.9%average move over the next 20 trading days in the last 5 years
±4.2%typical daily move, from the 14-day average range
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
CoStar seasonality: the next 20 trading days
Over the next 20 trading days from Sep 26, CoStar averaged +0.9% across the last 5 years, rising in 2 of them.
Next 20 trading days, by year
Average move and hit rate
| Window | Average | Years higher |
|---|---|---|
| Next 5 trading days | +0.6% | 3 of 5 |
| Next 10 trading days | +0.7% | 3 of 5 |
| Next 15 trading days | +1.9% | 4 of 5 |
| Next 20 trading days | +0.9% | 2 of 5 |
| Next 30 trading days | −1.1% | 3 of 5 |
For scale, CSGP’s typical 20-trading-day move in either direction is about 5.9%.
CoStar market cap and key statistics
CoStar’s market cap is $10.95B, with a P/E ratio of 156.1 and revenue of $3.56B over the last twelve months.
Valuation
- Market cap
- $10.95B
- P/E ratio
- 156.1
- Forward P/E
- 18.3
- EPS, TTM
- $0.18
- Gekko Fair Value
- $29.37
Trading
- Volume
- 5.18M
- Avg volume, 20 days
- 7.59M
- 52-week high
- $85.24
- 52-week low
- $25.89
- Shares outstanding
- 405.2M
Financials
- Revenue, TTM
- $3.56B
- Profit margin
- 2.1%
- Return on equity
- 0.9%
- Quarterly earnings growth, YoY
- +1,261.0%
Risk and income
- Beta
- 0.75
- Typical daily move
- ±4.2%
- Typical 20-day move
- ±5.9%
CoStar stock news this week
Coverage of CoStar this week reads neutral: 2 positive, 4 neutral and 2 negative headlines.
- Why CoStar (CSGP) Stock Is Trading Lower TodayStockStory, Sep 28
- Tampa Leads CoStar's Small Bay Industrial RankingGlobest, Sep 28
- How Index Removal Will Impact CoStar Stock InvestorsSimply Wall Street, Sep 27
- Why CoStar Group (CSGP) Is Back In FocusSimply Wall Street, Sep 25
- Tampa, Columbus Lead CoStar's Small-Bay Industrial Performance Ranking – Company AnnouncementFinancial Times, Sep 24
- CoStar Group, Inc. (CSGP) Stock forecastsYahoo Finance Singapore, Sep 24
CoStar peers
CoStar’s 6 largest industry peers by market value, with today’s move, GekkoIndex zone and gap to Gekko Fair Value.
| Stock | GekkoIndex zone | vs Fair Value |
|---|---|---|
| GOOGLAlphabet | Neutral | 7.1% above |
| GOOGAlphabet | Neutral | 7.4% above |
| METAMeta Platforms | Neutral | 22.3% above |
| NFLXNetflix | Accumulation | 28.2% below |
| SPOTSpotify Technology | Accumulation | 10.3% above |
| MSTRStrategy | Neutral | 3.3% below |
A peer links to its own page where one exists.
CoStar stock FAQ
What is CoStar’s market cap?
CoStar’s market cap is $10.95B at the Sep 28, 2026 close of $27.02, with 405.2M shares outstanding. The shares trade on a P/E ratio of 156.1.
What is the CoStar stock forecast?
The consensus analyst 12-month price target for CoStar is $37.30, +38.0% from the last close. Of the 14 firms that rated the stock in the last 90 days, 6 rate it a buy, 7 a hold and 1 a sell. Gekko doesn’t publish price predictions of its own.
Is CoStar stock overvalued or undervalued?
On Gekko’s estimate CoStar is undervalued: the Sep 28, 2026 close of $27.02 is 8.0% below Gekko Fair Value of $29.37. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
When does CoStar report earnings next?
CoStar is expected to report on Oct 27, 2026, after the market closes (28 days away). Analysts expect earnings of $0.34 per share on revenue of $944.9M. CoStar beat the earnings estimate in 8 of its last 8 reports, moving 6.7% on average across the report.
What is CoStar’s 52-week high and low?
CoStar’s 52-week high is $85.24 and its 52-week low is $25.89; it closed at $27.02 on Sep 28, 2026, −67.5% over the past year. Over the last five years the shares peaked at $101.05 on Oct 26, 2021.
Is CoStar stock a buy right now?
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 3 of the 6 items with data read as supportive (gekkoindex, fair value and smart money), 1 as mixed (seasonality) and 2 as headwinds (trend and earnings risk). The checklist is a description of current data, not a recommendation.
How this page works
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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