Cardinal Infrastructure Group (CDNL) Q3 2026 earnings review
Cardinal Infrastructure sales rise, but cost overruns erase its profit
Cardinal Infrastructure Group, a Southeastern civil contractor, grew revenue through past acquisitions while cost overruns wiped out its profit. Total sales rose 65% from a year ago to $202 million, but underlying sales growth slowed to 20% by our math and swung to an $11 million net loss. Chief executive Jeremy Spivey called the 4% Adjusted EBITDA margin unacceptable after project cost revisions, builder price pressure and higher fuel bills cut profitability.
| Sales from businesses owned a year ago | +20% down from +64% in Q2 (by our math) |
|---|---|
| Adjusted EBITDA margin | 4.2% 17.5% a year ago and 12.4% in Q2 |
| Total backlog | $815.5M down $50.5M from Q2 |
| Full-year 2026 outlook | Withdrawn prior: $880–900M sales, 16–18% margin |
⚖️ Verdict: 🔴🔴 Very Bearish
The story got much worse because the second-half margin recovery failed and the company pulled its full-year targets. Three months ago, management called its cost problems temporary; this quarter it took a $13 million charge for underestimating project costs, postponed the Hughes Brothers acquisition, and announced the resignation of finance chief Mike Rowe. The only offset is a $136 million net cash balance that backs a new $50 million share buyback plan.
The question now is whether the $13 million write-down clears out the bad bids or if more underpriced fixed-price work sits inside the $816 million backlog. Either chief operating officer Benji Wood's new bidding controls restore double-digit margins quickly, or lower-margin commercial and residential contracts depress profit into 2027. Fourth-quarter gross margin and the outside advisor's estimating review will settle it.
🐂 Bull Case
Net Cash Balance Funds a $50 Million Buyback Plan
Cardinal Infrastructure Group, a civil and site development contractor in the Southeastern US, ended September with $335.0 million in cash after its June stock offering. Total debt stood at $198.5 million, leaving $136.5 million in net cash and $350.0 million in unused credit lines. Because the balance sheet carries more cash than debt, the board authorized up to $50 million in Class A share buybacks over the next 12 months.
What to watch: actual share repurchases in the fourth-quarter cash flow statement. Buying back shares would show that the board sees no near-term cash drain from the project cost overruns.
Operating Cash Flow Held Up Despite the Loss
Even though the contractor recorded an $11.0 million net loss in the third quarter, operations still brought in $8.3 million of cash. Management also slowed equipment spending to $7.6 million from $24.7 million in the second quarter. As a result, free cash flow turned positive at $0.7 million, compared with a $12.0 million cash burn three months earlier, keeping nine-month operating cash flow ahead of last year at $30.3 million.
What to watch: fourth-quarter operating cash flow and customer collections. Positive cash generation in the final quarter would confirm that the $13.2 million project write-down was mostly an accounting catch-up rather than a new cash outflow.
🐻 Bear Case
Cost Overruns Erased Three Quarters of Margin
Three months ago, the leadership team cut its full-year Adjusted EBITDA margin target (operating profit before depreciation, amortization and one-offs) from 20% to a 16–18% range and called the dip temporary. By our math, hitting that lowered target required a 19.5% margin in the second half. Instead, the third-quarter margin dropped to 4.2%, and the company withdrew its full-year revenue and profit targets.
- Gross margin: 5.4%, down 10.5 percentage points from 15.9% a year ago as cost of revenues jumped to 94.6% of sales
- Project estimate revisions: $13.2 million charge from "revising its estimates of costs to complete on certain projects", cutting 6.5 points from the Adjusted EBITDA margin
- Margin excluding the $13.2 million charge: 10.7% by our math, still down 6.8 percentage points from a year ago
"These results are not acceptable, and they make clear that we need to strengthen how we estimate, manage and execute projects across Cardinal," chief executive Jeremy Spivey said. Nearly all of the group's contracts are fixed-price, so when job estimates are too low, the extra costs come straight out of profit.
What to watch: fourth-quarter gross margin and any further project cost revisions when full-year results arrive. A second quarter of estimate write-downs would show that underpriced work remains inside the $815.5 million backlog.
Backlog Shrank and Underlying Growth Slowed
Cardinal's growth story rested on doubling sales while building a record order book. In the third quarter, total revenue rose 65.1% from a year ago to $201.9 million, but two-thirds of that gain ($55.7 million) came from acquired companies. Sales from businesses owned a year ago grew 19.5% by our math ($23.9 million), down from 64% growth in both the first and second quarters, while total revenue fell 11.0% from the second quarter.
The forward order book also contracted. Total backlog fell by $50.5 million from June to $815.5 million. By our math, the contractor booked $151.4 million of new work during the quarter, or $0.75 of new orders for every $1.00 of revenue billed, down from $1.05 in the second quarter. Management intends to tighten project selection, so order intake may stay slow as the team turns away lower-margin bids.
What to watch: year-end backlog and implied fourth-quarter orders, especially after A.L. Grading Contractors (ALGC, the Georgia site contractor bought in February) passes its one-year mark in early 2027. A second quarterly drop in backlog would point to shrinking underlying revenue next year.
Finance Chief Resigns as Acquisition Playbook Pauses
Rapid acquisitions were a core growth driver through the first half of 2026, while integration strain was a standing risk. That driver has now paused. "Separately, in collaboration with Hughes Brothers, we've decided to postpone the proposed acquisition," Spivey said, shifting focus to "strengthening execution across our existing operations and realizing the benefits of the businesses we've already acquired". Three days before the release, finance chief Mike Rowe resigned, staying only until Spencer Stuart finds a replacement.
The release also made no mention of Allied Paving, a $120 million Atlanta deal previously expected to close in October. Losing the finance chief right after $13.2 million in project cost revisions and a withdrawn full-year plan raises the risk that forecasting and integration controls across the recently acquired subsidiaries are weak.
What to watch: the appointment of a permanent finance chief and whether the outside advisor's review of project estimating leads to restatements or further write-downs in the annual report.
Builder Pricing Pressure and Lower Commercial Bid Margins
Cardinal has been expanding into commercial and industrial site work—such as data centers and warehouses—to rely less on residential homebuilders, who began asking for price cuts in the second quarter. While diversification was a positive driver, both end markets hurt profitability this quarter. Spivey attributed the margin drop to "residential pricing pressure, lower initial bid margins on certain commercial and industrial work, and higher fuel and transportation costs".
Pricing pressure from homebuilders and lower commercial bid margins took 3.6 percentage points off the Adjusted EBITDA margin, while fuel and hauling costs took another 3.5 points. Winning commercial jobs at thin initial margins did not offset the squeeze from housing customers.
What to watch: initial bid margins on new commercial awards once chief operating officer Benji Wood tightens bidding rules. Higher bid discipline should lift gross margin back above 12% if customers accept the prices.
Risks this quarter didn't answer
Four standing concerns from prior quarters received no new figures in the third-quarter earnings release.
- Underlying backlog growth: the release gave total backlog growth of 26.2% (mostly from ALGC), without disclosing how much backlog shrank at businesses owned a year ago.
- Allied Paving status: the $120 million deal was set to close in early October, yet the release neither confirmed its closing nor mentioned it alongside the postponed Hughes Brothers deal.
- Immature market losses: management did not separate how much of the $13.2 million cost overrun came from newer branches in Charlotte and Greensboro versus older Carolinas or Georgia operations.
- Insider tax liability and share overhang: the Tax Receivable Agreement liability rose to $55.9 million from $47.2 million in June, and 26.4 million Class B shares remain exchangeable.
👓 Other Themes
ALGC Chief Steps In to Overhaul Project Bidding
To fix the bidding mistakes, Spivey put chief operating officer Benji Wood—who ran Georgia contractor ALGC before Cardinal bought it in February—in direct charge of "establishing and implementing consistent operating standards across the Cardinal platform, focusing on project selection, estimating, project reviews and accountability". The company is also hiring an outside advisor to audit its project estimating and review processes.
💲 Other KPIs
Uncollected customer bills rose 9.4% from the second quarter and have more than doubled since December's $61.3 million, even though third-quarter revenue fell 11.0% from the second quarter. Contract assets—work done but not yet billed—fell to $84.4 million from $98.2 million in June as jobs were either billed or written down.
Overhead costs nearly tripled from $5.1 million a year ago, rising to 7.3% of revenue from 4.2% in the third quarter of 2025. The $9.6 million increase included $3.2 million of stock-based pay, $2.3 million of overhead from acquired companies, $1.8 million of deal fees, and new corporate staff and software.
Spending on machinery and equipment dropped to 3.8% of revenue in the third quarter, down from $24.7 million (10.9% of revenue) in the second quarter after the firm finished building its first asphalt plant. Nine-month equipment spending reached $41.6 million, up from $31.7 million a year ago.
🔮 Guidance
Withdrawn. The civil contractor pulled its full-year revenue target after third-quarter sales dropped 11.0% from the second quarter to $201.9 million. Management had previously raised the full-year midpoint twice, from $671.5 million to $680.0 million and then to $890.0 million in August. Nine-month revenue stands at $596.4 million, and the firm gave no fourth-quarter revenue range.
Withdrawn. After cutting its full-year margin target from above 20% down to 16–18% in August, Cardinal retracted the target altogether following the 4.2% third-quarter reading. Management stated only that it expects fourth-quarter Adjusted EBITDA dollars to improve from the third quarter's $8.5 million, without giving a number.
❓ Key Questions
Did the $120 million Allied Paving acquisition close in October?
Management said in August that Allied Paving would close in early October and contribute $28 million to fourth-quarter revenue. The third-quarter release postponed Hughes Brothers but did not mention Allied Paving once.
Which subsidiaries and markets drove the $13.2 million cost overrun?
Putting ALGC's former leader in charge of company-wide estimating suggests the bidding errors occurred in the older Carolinas branches or newer Charlotte and Greensboro markets rather than Georgia, but management gave no breakdown.
How much of the $815.5 million backlog carries low bid margins?
Cardinal turns over most of its backlog within 12 to 18 months. Investors need to know how many remaining fixed-price commercial and residential contracts were bid at the lower margins cited this quarter.
Why did finance chief Mike Rowe resign days before the release?
Rowe gave notice on November 9, just three days before the company reported $13.2 million in project cost revisions and withdrew its annual targets. The timing raises questions about internal cost tracking during the June stock offering.