Stock fact sheet · data as of
Comfort Systems USA, Inc. (FIX): fair value, margin of safety and Wheel Score
Industrials · Engineering & Construction · United States · High Growth
Is FIX undervalued?
At 1,481.27 (close of 16 Oct 2026), FIX trades 18% over the GLS average fair value of 1,251.68. 4 of the 9 models land above the price and 5 below. A negative margin of safety costs Value points in the Wheel Score (5 of 25 here) - the models see no discount, which does not make the business a poor one, only the price a full one.
There is a wide gap between DDM (44.14) and GLS Growth (2,493.23). 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 FIX under High Growth: revenue and earnings growing fast enough that the growth-based models carry the valuation.
Nine valuation models for FIX
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 | 914.90 | -38% | Present value of the projected free cash flows, discounted at the cost of capital |
| Graham Number | 289.31 | -80% | The most a defensive investor pays for the earnings and book value per share |
| Graham Growth | 2,179.62 | +47% | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields |
| Lynch | 941.49 | -36% | EPS × the earnings growth rate (PEG of 1), growth capped at 25% |
| GLS Growth | 2,493.23 | +68% | EPS compounded ten years at the blended growth rate, discounted back at 15% a year |
| 10 Cap | 1,521.72 | +3% | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10% |
| Payback Time | 2,428.20 | +64% | Eight years of compounded free cash flow: the price at which the business pays for itself |
| DDM | 44.14 | -97% | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend |
| EPV | 452.51 | -69% | Earnings power value: current EPS capitalised at 9% with no growth |
| Zombie (liquidation) | 3.36 | -100% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 2,082.50 | +41% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
Comfort Systems USA, Inc. scores 8 of 9 on the Piotroski F-score, the nine yes/no tests of profitability, leverage and efficiency on the latest annual accounts - a strong reading that passes the Sunday Scan's "6 or more" rule with room to spare. A GLS Moat score of 9.5/10 puts FIX among the more durable businesses we track: over ten years the metrics the score watches (revenue, EPS, book value, margins, cash flow, ROIC) have mostly moved the right way, year after year.
Returns on capital are high - ROIC 31.6%, ROE 41.8%, ROA 15.9% - with debt at 0.32 times equity and a free-cash-flow yield of 4.1%.
The dividend yield is 0.20% with a payout ratio of 6% - a small yield that leaves most of the earnings in the business. Revenue comes mainly from Mechanical 70%, Electrical 30% (quarter Q2 FY2026).
Institutional ownership scores 10/10, insider activity 1/10 and Congressional trading 5/10 on the GLS smart-money scales.
| Piotroski F-score | 8 / 9 | ROIC | 31.6% |
|---|---|---|---|
| GLS Moat | 9.5 / 10 | ROE | 41.8% |
| Debt / equity | 0.32 | ROA | 15.9% |
| Free-cash-flow yield | 4.1% | Payout ratio | 6% |
| Institutions | 10 / 10 | Insiders · Congress | 1 · 5 / 10 |
Wheel Score 71: Good
With a Wheel Score of 71 - the Good band - Comfort Systems USA, Inc. clears the Sunday Scan's "70 or higher" rule. The parts: Value 5/25, Health 18/20, Moat 14/15, Premium 18/20, Stability 16/20; Value (5/25) scores lowest.
Implied volatility is 69% 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 (18 of 20) because volatility this high usually comes with a reason. Chain open interest is 20,859 contracts across all expiries - enough for the wheel at normal size.
Volume runs at 842k shares a day on a market cap of $52.1B, with a beta of 1.66 - a high beta, so the stock tends to move more than the market and a strike can be gapped through; the Stability part of the Wheel Score gives that 16 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 5 / 25 | -18% margin of safety | |
| Health | 18 / 20 | Piotroski 8/9 | |
| Moat | 14 / 15 | moat 9.5/10 | |
| Premium | 18 / 20 | implied volatility 69% | |
| Stability | 16 / 20 | 842k shares/day, $52.1B cap, beta 1.66 |
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
Comfort Systems USA, Inc. reports earnings on 22 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 Engineering & Construction
The 12 companies below are the closest to Comfort Systems USA, Inc. by market cap within the Engineering & Construction 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 |
|---|---|---|---|---|---|
| FER Ferrovial N.V. | 48.86 | 41.04 | -19% | 61Fair | $35.2B |
| EME EMCOR Group, Inc. | 732.53 | 697.72 | -5% | 74Good | $32.3B |
| PWR Quanta Services, Inc. | 660.53 | 256.02 | -158% | 61Fair | $99.3B |
| APG APi Group Corporation | 40.33 | 28.77 | -40% | 61Fair | $17.4B |
| J Jacobs Solutions Inc. | 141.97 | 66.43 | -114% | 57Fair | $16.6B |
| MTZ MasTec, Inc. | 191.63 | 172.57 | -11% | 68Good | $15.4B |
| STRL Sterling Infrastructure, Inc. | 453.07 | 439.81 | -3% | 67Good | $13.9B |
| IESC IES Holdings, Inc. | 262.44 | 218.37 | -20% | 62Fair | $10.6B |
| TTEK Tetra Tech, Inc. | 33.61 | 28.92 | -16% | 76Good | $8.6B |
| DY Dycom Industries, Inc. | 257.78 | 361.57 | +29% | 81Prime | $7.8B |
| ACM Aecom | 59.09 | 51.70 | -14% | 64Fair | $7.6B |
| STN Stantec Inc. | 67.11 | 98.56 | +32% | 86Prime | $7.5B |
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Start free See the Sunday ScanQuestions about FIX
Is FIX undervalued right now?
No: at 1,481.27 the stock trades 18% above the GLS average fair value of 1,251.68 (data as of 16 Oct 2026). The margin of safety is negative.
What is the Wheel Score of FIX and what does it mean?
FIX scores 71 out of 100 (Good). 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 FIX?
1,251.68 per share as of 16 Oct 2026 - the simple average of the 9 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 Comfort Systems USA, Inc. report earnings next?
The next earnings report is due on 22 Oct 2026 (after the close), 6 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.
Does FIX have listed options, and how liquid are they?
Yes. The nightly snapshot found 1,000 listed contracts with 20,859 open interest across all expiries and implied volatility of 69% 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.