Stock fact sheet · data as of
CoStar Group, Inc. (CSGP): fair value, margin of safety and Wheel Score
Real Estate · Real Estate - Services · United States · Blend
Is CSGP undervalued?
CoStar Group, Inc. (CSGP) closed at 32.00 on 16 Oct 2026, 241% above the GLS average fair value of 9.38. 8 of the 8 models that produced a number value the shares below the current price. A gap this wide usually means the market is paying for growth or a story the trailing numbers do not show yet; the models work from filed results, not forecasts, so they are conservative by design.
There is a wide gap between GLS Growth (0.5368) and DCF (20.04). When the models are this far apart the "fair value" is really a range, and the margin of safety above should be read with that range in mind.
The nightly engine files CSGP under Blend.
Nine valuation models for CSGP
Each model turns the latest filed numbers into a value per share; the GLS fair value is the simple average of the ones that produce a positive number. The last two rows are shown for reference and never enter the average. The Quote page lets you switch any model off and add your own margin of safety.
| Model | Value | vs price | What it measures |
|---|---|---|---|
| DCF | 20.04 | -37% | Present value of the projected free cash flows, discounted at the cost of capital |
| Graham Number | 9.00 | -72% | The most a defensive investor pays for the earnings and book value per share |
| Graham Growth | 10.49 | -67% | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields |
| Lynch | 4.58 | -86% | EPS × the earnings growth rate (PEG of 1), growth capped at 25% |
| GLS Growth | 0.5368 | -98% | EPS compounded ten years at the blended growth rate, discounted back at 15% a year |
| 10 Cap | 19.53 | -39% | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10% |
| Payback Time | 8.79 | -73% | Eight years of compounded free cash flow: the price at which the business pays for itself |
| DDM | - | - | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend; no value tonight |
| EPV | 2.04 | -94% | Earnings power value: current EPS capitalised at 9% with no growth |
| Zombie (liquidation) | -0.1185 | -100% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 36.36 | +14% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
CoStar Group, Inc. scores 6 of 9 on the Piotroski F-score: a middling result that passes the Sunday Scan's "6 or more" rule. Some of the nine tests on profitability, leverage and efficiency are failed, so the accounts are worth a look before selling a put on the name. A GLS Moat score of 4.7/10 is a weak reading: the ten-year history the score grades (revenue, EPS, book value, margins, cash flow, share count, ROIC) has not been steady, so the Moat part of the Wheel Score contributes little.
Returns on capital are thin or negative - ROIC 0.1%, ROE 0.1%, ROA 0.1% - with debt at 0.14 times equity and a free-cash-flow yield of 2.4%.
CoStar Group, Inc. pays no dividend, so the DDM model does not apply and a covered-call holder earns only the premium and any price gain. Revenue comes mainly from Commercial Real Estate 100% (quarter Q2 FY2026).
Institutional ownership scores 10/10, insider activity 10/10 and Congressional trading 10/10 on the GLS smart-money scales; the last recorded Congressional buy was on 25 Sep 2026.
| Piotroski F-score | 6 / 9 | ROIC | 0.1% |
|---|---|---|---|
| GLS Moat | 4.7 / 10 | ROE | 0.1% |
| Debt / equity | 0.14 | ROA | 0.1% |
| Free-cash-flow yield | 2.4% | Payout ratio | 0% |
| Institutions | 10 / 10 | Insiders · Congress | 10 · 10 / 10 |
Wheel Score 60: Fair
A Wheel Score of 60 puts CoStar Group, Inc. in the Fair band - below the 70 the Sunday Scan requires. Value 0/25, Health 13/20, Moat 7/15, Premium 20/20 and Stability 20/20; the weakest part is Value (0/25).
Implied volatility is 61% on the near-the-money contracts 20-60 days out - above the 60% ceiling of the sweet spot. Premiums are large, but the Wheel Score tapers the Premium points (20 of 20) because volatility this high usually comes with a reason. The option chain is deep: 87,176 contracts of open interest across all expiries, which means tight fills at most strikes.
Volume runs at 5.6M shares a day on a market cap of $13.0B, with a beta of 0.80 - a low beta, so day-to-day moves are smaller than the market's; the Stability part of the Wheel Score gives that 20 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 0 / 25 | -241% margin of safety | |
| Health | 13 / 20 | Piotroski 6/9 | |
| Moat | 7 / 15 | moat 4.7/10 | |
| Premium | 20 / 20 | implied volatility 61% | |
| Stability | 20 / 20 | 5.6M shares/day, $13.0B cap, beta 0.80 |
The Wheel Score ranks ~7,400 US stocks for selling cash-secured puts and covered calls; it is updated nightly and is not a recommendation. The walkthrough lesson shows how the score fits into a trade, start to finish.
Upcoming events
CoStar Group, Inc. reports earnings on 27 Oct 2026 (after the close) - inside the 14-day window the Sunday Scan avoids, because a put sold now would carry the report's gap risk.
Earnings, dividend, IPO, split and economic calendars for the whole market, filterable to your watchlists.
Similar stocks in Real Estate - Services
The 12 companies below are the closest to CoStar Group, Inc. by market cap within the Real Estate - Services industry, each with its own fact sheet; the Compare page puts up to eight of them side by side.
| Stock | Close | Fair value | MoS | Wheel | Mkt cap |
|---|---|---|---|---|---|
| JLL Jones Lang LaSalle Incorporated | 310.79 | 621.27 | +50% | 89Prime | $14.3B |
| BEKE KE Holdings Inc. | 17.83 | 25.02 | +29% | 85Prime | $20.6B |
| COMP Compass, Inc. | 9.62 | 5.05 | -91% | 47Weak | $7.3B |
| BPYPN Brookfield Property Partners L.P. | 13.53 | 159.97 | +92% | 39No options | $6.7B |
| BPYPO Brookfield Property Partners L.P. | 14.91 | 159.97 | +91% | 39No options | $6.7B |
| BPYPP Brookfield Property Partners L.P. | 15.29 | 159.97 | +90% | 39No options | $6.4B |
| FSV FirstService Corporation | 135.07 | 114.28 | -18% | 54Fair | $6.2B |
| CIGI Colliers International Group Inc. | 90.58 | 90.82 | +0% | 69Good | $4.5B |
| CBRE CBRE Group, Inc. | 135.49 | 73.61 | -84% | 61Fair | $39.2B |
| IHS IHS Holding Limited | 8.44 | 12.65 | +33% | 75Good | $2.9B |
| CWK Cushman & Wakefield plc | 11.61 | 16.26 | +29% | 79Good | $2.7B |
| OPEN Opendoor Technologies Inc. | 2.32 | - | - | 41Weak | $2.3B |
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Start free See the Sunday ScanQuestions about CSGP
Is CSGP undervalued right now?
No: at 32.00 the stock trades 241% above the GLS average fair value of 9.38 (data as of 16 Oct 2026), well beyond what trailing earnings, cash flow and book value support.
What is the Wheel Score of CSGP and what does it mean?
CSGP scores 60 out of 100 (Fair). The Wheel Score blends the margin of safety (25 points), Piotroski health (20), the GLS moat (15), the option premium on offer (20) and trading stability (20) into one number that ranks stocks for the wheel strategy - selling cash-secured puts, then covered calls if assigned. 80 and above is Prime, 65-79 Good, 50-64 Fair, under 50 Weak.
What is the GLS fair value for CSGP?
9.38 per share as of 16 Oct 2026 - the simple average of the 8 valuation models (out of nine: DCF, Graham Number, Graham Growth, Lynch, GLS Growth, 10 Cap, Payback Time, DDM and EPV) that produced a positive value. The models run every night on the latest filings; the Quote page lets you switch any of them off and add a margin of safety of your own.
When does CoStar Group, Inc. report earnings next?
The next earnings report is due on 27 Oct 2026 (after the close), 11 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.
Does CSGP have listed options, and how liquid are they?
Yes. The nightly snapshot found 304 listed contracts with 87,176 open interest across all expiries and implied volatility of 61% on the near-the-money contracts. The Options scanner lists the cash-secured put and covered call set-ups with premium and annualised yield worked out.