Stock fact sheet · data as of
Aecom (ACM): fair value, margin of safety and Wheel Score
Industrials · Engineering & Construction · United States · Blend
Is ACM undervalued?
Aecom (ACM) closed at 59.09 on 16 Oct 2026, 14% above the GLS average fair value of 51.70. Only 2 of the 9 models that produced a number value the shares above the current price. The margin of safety is negative, so the stock fails the "below fair value" rule of the Sunday Scan; a premium of this size is common for companies whose growth the models are conservative about.
There is a wide gap between DDM (18.25) and Graham Growth (104.17). 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 ACM under Blend.
Nine valuation models for ACM
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 | 101.79 | +72% | Present value of the projected free cash flows, discounted at the cost of capital |
| Graham Number | 29.33 | -50% | The most a defensive investor pays for the earnings and book value per share |
| Graham Growth | 104.17 | +76% | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields |
| Lynch | 43.75 | -26% | EPS × the earnings growth rate (PEG of 1), growth capped at 25% |
| GLS Growth | 48.14 | -19% | EPS compounded ten years at the blended growth rate, discounted back at 15% a year |
| 10 Cap | 49.55 | -16% | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10% |
| Payback Time | 45.44 | -23% | Eight years of compounded free cash flow: the price at which the business pays for itself |
| DDM | 18.25 | -69% | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend |
| EPV | 24.89 | -58% | Earnings power value: current EPS capitalised at 9% with no growth |
| Zombie (liquidation) | -21.55 | -136% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 81.00 | +37% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
Aecom scores 5 of 9 on the Piotroski F-score: a middling result that falls one point short of 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. On durability ACM scores 5.3/10 on the GLS Moat - a middle reading; the Scorecard on the Quote page's Financials tab shows which ten-year lines are steady and which are not.
Returns on capital are moderate - ROIC 9.6%, ROE 22.5%, ROA 4.6% - with debt at 1.35 times equity and a free-cash-flow yield of 2.7%.
The dividend yield is 2.10% at a payout ratio of 52%; for a wheel trader holding assigned shares the dividend adds to the covered-call premium, and the ex-dividend date is worth knowing before a call is sold. Revenue comes mainly from Americas 78%, Rest of world 22% (quarter Q1 FY2026).
Institutional ownership scores 10/10, insider activity 3/10 and Congressional trading 5/10 on the GLS smart-money scales.
| Piotroski F-score | 5 / 9 | ROIC | 9.6% |
|---|---|---|---|
| GLS Moat | 5.3 / 10 | ROE | 22.5% |
| Debt / equity | 1.35 | ROA | 4.6% |
| Free-cash-flow yield | 2.7% | Payout ratio | 52% |
| Institutions | 10 / 10 | Insiders · Congress | 3 · 5 / 10 |
Wheel Score 64: Fair
A Wheel Score of 64 puts Aecom in the Fair band - below the 70 the Sunday Scan requires. Value 7/25, Health 11/20, Moat 8/15, Premium 20/20 and Stability 18/20; the weakest part is Value (7/25).
Implied volatility is 43% on the near-the-money contracts 20-60 days out - inside the 35-60% range the Wheel Score pays full marks for: enough premium to be worth selling, not so much that the risk is unpaid. Chain open interest is 11,912 contracts across all expiries - enough for the wheel at normal size.
Volume runs at 1.2M shares a day on a market cap of $7.6B, with a beta of 0.93; the Stability part of the Wheel Score gives that 18 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 7 / 25 | -14% margin of safety | |
| Health | 11 / 20 | Piotroski 5/9 | |
| Moat | 8 / 15 | moat 5.3/10 | |
| Premium | 20 / 20 | implied volatility 43% | |
| Stability | 18 / 20 | 1.2M shares/day, $7.6B cap, beta 0.93 |
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
The next earnings report is due on 17 Nov 2026 (after the close), 32 days away; a 30-45-day put sold today would expire after it, which is worth weighing against the premium.
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 Aecom 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 |
|---|---|---|---|---|---|
| STN Stantec Inc. | 67.11 | 98.56 | +32% | 86Prime | $7.5B |
| DY Dycom Industries, Inc. | 257.78 | 361.57 | +29% | 81Prime | $7.8B |
| TTEK Tetra Tech, Inc. | 33.61 | 28.92 | -16% | 76Good | $8.6B |
| FLR Fluor Corporation | 47.67 | 8.01 | -495% | 45Weak | $6.4B |
| LGN Legence Corp. Class A Common stock | 45.30 | 49.16 | +8% | 45Weak | $6.3B |
| ECG Everus Construction Group, Inc. | 111.66 | 117.18 | +5% | 69Good | $5.7B |
| IESC IES Holdings, Inc. | 262.44 | 218.37 | -20% | 62Fair | $10.6B |
| AGX Argan, Inc. | 367.16 | 392.92 | +7% | 69Good | $5.2B |
| GVA Granite Construction Incorporated | 108.78 | 92.37 | -18% | 45Weak | $4.8B |
| KBR KBR, Inc. | 36.44 | 65.77 | +45% | 84Prime | $4.6B |
| ROAD Construction Partners, Inc. | 80.84 | 73.66 | -10% | 66Good | $4.6B |
| MYRG MYR Group Inc. | 285.57 | 266.09 | -7% | 71Good | $4.4B |
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Start free See the Sunday ScanQuestions about ACM
Is ACM undervalued right now?
No: at 59.09 the stock trades 14% above the GLS average fair value of 51.70 (data as of 16 Oct 2026). The margin of safety is negative.
What is the Wheel Score of ACM and what does it mean?
ACM scores 64 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 ACM?
51.70 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 Aecom report earnings next?
The next earnings report is due on 17 Nov 2026 (after the close), 32 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.
Does ACM have listed options, and how liquid are they?
Yes. The nightly snapshot found 328 listed contracts with 11,912 open interest across all expiries and implied volatility of 43% 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.