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The most useful measures are project margins, backlog quality, cash conversion, balance-sheet strength and bonding capacity. Read them together: a contractor can report strong revenue and a large backlog yet still face thin project profits, delayed collections or limits on how much new work it can bond. Compare multi-year trends and adjust for each company’s business mix, contract types and accounting definitions; there is no universal margin, backlog, DSO or leverage threshold for the sector.
1. Project profitability: Are margins holding up?
Start with gross margin and operating margin over several years, then check net income and segment results where available. Revenue growth alone does not show whether estimates, costs or execution are improving. Look for the explanation behind margin changes, including project mix, cost revisions, claims and change orders.
Granite Construction reported Construction gross profit margins of 15.7% in 2025, 14.4% in 2024 and 10.9% in 2023. These are Granite-specific reported results, not industry targets. The company says revenue, gross profit and operating cash flow can vary significantly with project progression, outstanding change orders and claims, and contract payment terms. Granite Construction’s 2025 Form 10-K
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If management highlights adjusted EBITDA or another non-GAAP measure, read its definition and reconciliation against GAAP operating income, net income and cash flow. Construction Partners cautions that non-GAAP measures should not be considered in isolation or as substitutes for GAAP financial information. Construction Partners’ Form 10-K for the fiscal year ended September 30, 2025
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2. Backlog: How much work is executable and what risks does it carry?
Backlog can indicate future activity, but it is not standardized across companies and is not a guarantee of revenue or profit. Read the issuer’s definition and separate executed, funded contracts from unsigned awards, apparent low bids, claims and pending change orders. Then consider expected conversion timing and concentration in a small number of customers, regions or projects.
| Company and date | Reported backlog | What the figure includes or excludes |
|---|---|---|
| Sterling Infrastructure, December 31, 2025 | $3.01 billion, compared with $1.69 billion a year earlier | Excludes apparent low bids until the customer formally executes a contract. Sterling says most backlog is fixed-unit-price or lump-sum work; lump-sum work generally carries greater contractor risk, but may yield more profit if completed below estimate. |
| Construction Partners, September 30, 2025 | $3.0 billion, including $2.2 billion on contracts in progress or executed and $0.8 billion of low-bid/no-contract projects | Defines backlog as a non-GAAP industry measure and includes projects when awarded and funding is considered probable. |
The differing definitions make these headline totals unsuitable for direct comparison without adjustment: Sterling excludes apparent low bids until contract execution, while Construction Partners includes a disclosed category of low-bid/no-contract projects. Review each filing’s full definition, contract mix and risk discussion before treating backlog growth as evidence of stronger future earnings. Sterling Infrastructure’s 2025 Form 10-K; Construction Partners’ Form 10-K for the fiscal year ended September 30, 2025
3. Cash conversion: Do earnings turn into cash?
Compare operating cash flow with net income over multiple years, and inspect the working-capital components behind the difference: accounts receivable, contract assets and liabilities, retainage, and billing or collection timing. In construction, revenue recognized as work progresses may precede or follow cash receipts. Project starts, billing milestones, customer acceptance and collections can all shift cash between periods.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Granite says private-sector customers can pay more slowly than public-sector customers, and contracts often retain a specified percentage of payments until completion and acceptance. Its reported net cash provided by operating activities was $468.916 million in 2025, $456.343 million in 2024 and $183.707 million in 2023. These company-specific figures are not a sector benchmark. Granite Construction’s 2025 Form 10-K
DSO (days sales outstanding) can help assess collections, but only when you understand the issuer’s formula. Quanta Services defines DSO using receivables—including retainage and unbilled balances—plus contract assets less contract liabilities, divided by average daily quarterly revenue. It reported DSO of 60 days at December 31, 2025, versus 59 days a year earlier and a five-year historical average of 75 days. Those figures reflect Quanta’s definition and history, not a universal target. Quanta also says project starts may require it to pay costs before associated receivables are billed and collected, while delayed or unpaid change orders and claims can pressure cash flow. Quanta Services’ 2025 Form 10-K
4. Financial capacity: Can the company fund and bond new work?
Assess gross and net debt, interest burden, debt maturities and available liquidity alongside operating cash flow. Include capital expenditure needs and acquisition spending: equipment and working capital support execution, while acquisitions can affect reported growth and leverage. A contractor’s ability to obtain surety bonds is also an operating constraint, because bonding can determine how much work it is able to pursue or perform.
Quanta’s credit agreement disclosed a maximum consolidated leverage ratio of 3.5:1 and a minimum consolidated interest coverage ratio of 3.0:1, with temporary leverage covenant accommodation for certain qualifying acquisitions. These are contractual limits for Quanta, not recommended limits for other contractors. Quanta Services’ 2025 Form 10-K
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallSterling says bonding companies consider capitalization, working capital, aggregate contract size, past performance, management expertise, the amount of backlog already bonded and changing surety-market underwriting standards. When comparing issuers, review disclosed bonding capacity and how much existing backlog is bonded where that information is available. Sterling Infrastructure’s 2025 Form 10-K
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5. Comparability: What kind of contractor are you evaluating?
Before comparing margins or valuation multiples, identify what each company builds and owns. Heavy-civil contractors may have different exposures to roads, highways, bridges, airports, site work, building, materials or infrastructure services. Also distinguish public from private customers, regions, seasonality, project concentration, labor and material exposure, and fixed-price from cost-reimbursable work. Acquisitions can change the mix and make growth rates less comparable.
Construction Partners describes work in roads, highways, bridges, airports and site work for public and private customers; Sterling reports multiple business solutions and discusses differing contract forms and risk allocation. Those differences are a reason to compare companies with similar activities and to use each issuer’s own backlog and margin definitions rather than assume they mean the same thing. Construction Partners’ Form 10-K for the fiscal year ended September 30, 2025; Sterling Infrastructure’s 2025 Form 10-K
How to compare heavy-civil stocks
- Compare multi-year gross and operating margin trends, using segment data where available.
- Check backlog size relative to revenue, its definition, award and funding status, expected timing, and project or customer concentration.
- Compare operating cash flow with earnings, then investigate working-capital movements, contract balances, retainage and the company’s DSO formula.
- Review net debt, interest coverage, maturities, liquidity, capital spending and acquisition funding.
- Assess surety access, bonding capacity and the portion of backlog already bonded where disclosed.
- Normalize for business mix, geography, customer type, contract structure, seasonality and acquisition-driven growth.
- Apply valuation multiples consistently to comparable earnings or cash-flow measures, while keeping GAAP results and non-GAAP reconciliations visible.
The cited filings are from U.S.-listed issuers and are most directly relevant to comparing those companies. Their reported figures provide examples of what to examine, not sector averages or investment cutoffs.
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