NYSE: ACM · Engineering & Construction
Aecom (ACM) fair value: undervalued or overvalued?
As of 7 Nov 2026, Faircurve's model values Aecom (ACM) at $69.97 a share. The stock last closed at $66.74, which puts the model's fair value 4.8% above the price. On the model's bands that reads as Fairly valued.
Revalued . Price is the last session close. Aecom.
The report adds the live price, the price chart and the analysts' consensus. No account needed.
This week, in three parts
What happenedThe run of 7 Nov 2026 moved the fair value from $76.34 to $69.97 (-8.3%).
What the model makes of itThe price of $66.74 is 4.8% below it: Fairly valued, on a medium evidence grade.
What's nextNo report date on file. The next weekly run is on Saturday 14 Nov 2026.
What price range does the model give ACM?
The calibrated range for ACM over 63 trading days is $56.24 to $83.36. There is no live options data for this stock, so the range is built from the fair value and calibrated weekly against realised prices (n = 11,845 past valuations, refreshed 7 Nov 2026). Ranges built this way held the price 60% of the time at this horizon.
The model's own simulated range, from the 20th to the 80th percentile of its runs, is $45.21 to $102.80. In 54% of the simulations the fair value came out above the price the model ran on.
Faircurve Insights · 7 Nov 2026
Aecom (ACM) is an Industrials company in Engineering & Construction. AECOM, along with its affiliated entities, delivers specialised infrastructure consulting services to public sector bodies, private businesses and other organisations across the globe, with operations spanning the Americas, Europe, the Middle East and Africa.
Faircurve's model gave Aecom a fair value of $69.97 a share on 7 Nov 2026, the midpoint of 2,000 simulations. The previous run, on 15 Aug 2026, gave $76.34, so the fair value moved -8.3%. The calibrated range over 63 trading days is $56.24 to $83.36. There is no live options data for the stock, so the range is built from the fair value. It is calibrated weekly against realised prices, using 11,845 past valuations, refreshed 7 Nov 2026. Ranges built this way held the price 60% of the time at this horizon. The model grades the evidence Medium. That grade looks at how complete the inputs are, how many comparable companies there are and how closely they agree, and how wide the range of outcomes is. It does not say whether the fair value is right.
Aecom scores 53 out of 100 on the model's overall quality score, a composite of six quality factors. Stability is the strongest at 83, with five-year EBITDA margin downside volatility of 1.1 pts against a peer median of 1.4 pts. Growth quality is the weakest at 20, with trailing revenue growth of 0.2% against a peer median of 2.6%. The balance sheet scores 35, with net debt to EBITDA of 2.42x against a peer median of 1.72x. The model compares Aecom with STRL, TTEK, DY, FLR, GVA, MTZ and J, each with its own fair value on the site.
Written from the figures on this page for the 7 Nov 2026 valuation and checked by rule before publishing: every number is one printed here, no forecast, no instruction. The price, the gap and the verdict are the page's own and change daily. Not a recommendation.
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What the options market has priced for a month's move in ACM
How does ACM score on business quality?
Aecom's overall quality score is 53 out of 100. Each factor below is a score against comparable companies, not a percentile of the metric beside it.
| Factor | Score (0 to 100) | Headline measure | Peer median |
|---|---|---|---|
| ProfitabilityReturn on invested capital against the peer group, with a bonus for an improving trend. | 71 | 11.5%ROIC | 9.7% |
| Earnings qualityHow much of reported profit is cash: free cash flow to net income, and the accrual ratio (the share of earnings that is not cash). | 43 | 0.71xFCF / net income | 1.77x |
| Growth qualityTrailing revenue growth, forward growth from consensus, and the direction of analysts' rating changes. | 20 | 0.2%Revenue growth, trailing | 2.6% |
| Capital disciplineReinvestment efficiency (capital spending per unit of revenue) and net buybacks. | 69 | 8.1%Net buybacks / market value | 5.7% |
| Balance sheetNet debt to EBITDA and interest coverage. | 35 | 2.42xNet debt / EBITDA | 1.72x |
| StabilityDownside volatility of the EBITDA margin over the last five years. | 83 | 1.1 ptsEBITDA margin downside volatility, 5y | 1.4 pts |
How does ACM compare with similar companies?
The companies in engineering & construction closest to Aecom in market value, each on the same model and the same date.
| Company | Last close | Model fair value | Gap | Model verdict |
|---|---|---|---|---|
| STRL Sterling Infrastructure, Inc. | $252.82 | $321.42 | +27.1% | Undervalued |
| TTEK Tetra Tech, Inc. | $40.29 | $38.29 | -5.0% | Fairly valued |
| DY Dycom Industries, Inc. | $207.52 | $226.34 | +9.1% | Fairly valued |
| FLR Fluor Corporation | $46.48 | $56.13 | +20.8% | Undervalued |
| GVA Granite Construction Incorporated | $120.52 | $131.67 | +9.3% | Fairly valued |
| MTZ MasTec, Inc. | $174.10 | $167.48 | -3.8% | Fairly valued |
| KBR KBR, Inc. | $37.17 | $41.57 | +11.8% | Low evidence grade |
| J Jacobs Solutions Inc. | $148.90 | $134.39 | -9.7% | Fairly valued |
What the comparable companies' multiples alone would give for ACM, the peer-implied price, is $80.71 a share on this run. The fair value weighs that against the company's own multiple.
All engineering & construction stocks ranked by gap to fair value
Aecom at a glance
AECOM, along with its affiliated entities, delivers specialized infrastructure consulting services to public sector bodies, private businesses, and various organizations across the globe, with operations spanning the Americas, Europe, the Middle East, Africa.
- Market value
- $8.6B
- Sector
- Industrials
- Industry
- Engineering & Construction
- Revenue expected, next twelve months
- $8.0B
- Consensus revenue growth, next fiscal year
- -54.6%
- Analysts with estimates
- 5
- Beta to the US market
- 0.86
- First valued by Faircurve
- 11 Jul 2026
At the close of 6 Nov 2026, 53.0% of the 1,067 graded US stocks the model covers traded below the model's fair value. ACM was among them.
How the fair value is worked out: the model prices Aecom on the value of the whole business, debt included, against the operating profit analysts expect next year (forward EV/EBITDA), runs 2,000 simulations across its inputs and takes the midpoint. The full method is documented here.
What changed in the latest valuation?
On 15 Aug 2026 the model's fair value for ACM was $76.34. As of 7 Nov 2026 it is $69.97, a change of -8.3%. The model revalues every stock it covers each week, and again after an earnings report.
Questions about Aecom's valuation
Is Aecom stock undervalued or overvalued?
On Faircurve's model, ACM reads as Fairly valued as of 7 Nov 2026. The model's fair value is $69.97 a share against a last close of $66.74, a gap of +4.8%.
What is ACM's fair value?
$69.97 a share as of 7 Nov 2026, the midpoint of 2,000 simulations. The model's own 20th to 80th percentile range is $45.21 to $102.80.
What price range does the model give ACM?
$56.24 to $83.36 over 63 trading days. Ranges built this way held the price 60% of the time across 11,845 past valuations, refreshed 7 Nov 2026.
How confident is the model in this valuation?
The model's evidence grade for ACM is medium. The grade looks at how complete the inputs are, how many comparable companies there are and how closely they agree, and how wide the range of outcomes is. It is not a probability that the fair value is right, or that the price reaches it.
The model's own ideas on ACM
The model holds no idea open on ACM today. Signed-in readers see the rule each idea runs on, the floor and the exit level the model set and its time limit, and the model's closed ideas on ACM with their outcomes. A free account is enough.