CoStar Group Stock Forecast & Price Target
CoStar Group Price Target 2026
The Quantum Forecast sees a price target of $31.60 (+5.5%) for CoStar Group in about one month (by Dec 10, 2026).
Quantum Forecast price targets by time frame, calculated from the current price of $29.95. Click to see the forecast in the chart.
CoStar Group Forecast for Today and Tomorrow
In the short term, the Quantum Forecast sees CoStar Group at $29.96 (+0.04%) today around 9:30 AM ET and at $29.87 (−0.27%) today around 2:30 PM ET. It is based on prices from the current trading day and the past week. Short-term forecast in the chart
CoStar Group Stock 2026: Price Performance
CoStar Group stock has lost 55.5% since the start of 2026 and currently trades at $29.95 (as of Nov 11, 2026). Over the same period the S&P 500 is up 10.9%, putting the stock 66.3 percentage points behind the index. Over the past 52 weeks the price ranged between $25.88 and $70.88; it is currently 57.8% below its high of Jan 27, 2026.
CoStar Group Forecast 2027
Over a horizon of roughly 10 months (until about Sep 2027), the Quantum Forecast sees a price target of $20.31 for CoStar Group – −32.2% from today. The range band runs from $7.25 – $33.36: the further ahead the forecast looks, the greater the uncertainty. See the long-term forecast in the chart
Community Forecast for CoStar Group
There are no user forecasts for CoStar Group yet – be the first to make one.
Make your own forecastAbout CoStar Group
CoStar Group is a provider of real estate information, analytics and online marketplaces, headquartered in Arlington, Virginia. Andrew Florance founded the company in 1987. Its flagship product CoStar offers commercial real estate professionals data on properties, leases, sales and market trends via subscription. The group also runs the commercial property marketplace LoopNet, the rental platform Apartments.com and its sister sites, and the residential portal Homes.com.
Customers are brokers, investors, lenders, property owners and managers, as well as landlords who pay to advertise apartments and real estate agents in the residential market. CoStar has invested heavily in Homes.com to compete with Zillow and Realtor.com, a strategy that has weighed on profits and drawn attention from activist investors. The 2025 acquisition of Matterport added 3D digital twins of buildings. Subscription revenue makes much of the business recurring, while the commercial and housing markets influence demand. CoStar trades on Nasdaq under the ticker CSGP and is part of the S&P 500.
The current price of CoStar Group stock is $29.95 (−1.71% vs. the previous close). In today's trading the high was $30.28 and the low $29.74.
How the Quantum Forecast works
Research from quantum physics. The models are the result of several years of research at the Max Planck Institute of Quantum Optics and LMU Munich and were transferred to the stock market.
Spectra and correlations. Frequency spectra are calculated from current prices, and the relationships between price swings and volatility are analyzed. This produces the forecast and the risk assessment.
Detecting herd behavior. Models of phase transitions from statistical physics describe when investors collectively fall into panic or euphoria – an early sign of possible crash situations.
Swarm intelligence. User forecasts are checked once their time frame has expired and feed into the model, weighted by their hit rate.
The range band shows the typical fluctuation around the forecast. More on quantum physics & swarm intelligence
Frequently Asked Questions about CoStar Group Stock
What is the CoStar Group stock forecast?
The Quantum Forecast expects CoStar Group to reach $31.60 in about one month (by Dec 10, 2026), a change of +5.5% from the current price of $29.95. Over roughly 10 months (by Sep 2027) the price target is $20.31 (−32.2%).
What is the CoStar Group stock price target?
Quantum Forecast price targets by time frame: 1 month $31.60 (+5.5%), 2 months $32.11 (+7.2%), 6 months $33.76 (+12.7%), 10 months $20.31 (−32.2%). The range band shows the typical fluctuation around these targets.
Will CoStar Group stock go up or down?
In the short term the Quantum Forecast points up (+5.5% over one month). No forecast is certain – it is based on historical prices and statistical analysis.
How is the Quantum Forecast computed?
Trends, frequency spectra and correlations are calculated from the price history using methods from quantum physics; user opinions are added as well (swarm intelligence). The range band reflects the volatility of the security and widens with the time horizon.
Can I make my own forecast for CoStar Group?
Yes – in the Forecast League you pick long or short and a price target for 1 day up to 6 months. Forecasts are scored automatically when they expire; correct calls earn points and a spot on the leaderboard.