Gibraltar Industries

ROCK on Nasdaq. Gibraltar Industries sells roofing and rainwater products to residential, agricultural, and infrastructure customers. Market value $1.2bn.

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Price checks use the past 12 months to June 2026. Quality checks use five annual reports, the latest for the year to December 2025.

Should I look at this?

Good business, but not cheap right now

See cheaper Materials stocks on the list

This is not advice. Check the numbers below.

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Cash yield
past 12 months to June 2026
3.5%fair

For every $100 of what the whole company costs, it produced $3.50 of spare cash in the past 12 months. A savings account pays about $4.

Price to profit
past 12 months to June 2026
22.0×full

You pay 22.0 years of operating profit for the business. The average large US company costs around 18.

Return on capital
five annual reports to December 2025
11.6%five-year median

Each dollar kept in the business earns 12 cents a year. Above 10 is good.

Quality score: 77 of 100. Price score: 34 of 100. Our list needs 70 on quality and 60 on price.

$40.80 a share, 22% above its 1-year low

Over the past year the price has ranged from $33.56 to $75.08.

Pays no dividend

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

0.0
0.1
0.2
0.2
0.1
0.0
2021202220232024202512 monthsto Jun '26

Spare cash swings from quarter to quarter here: $42 million in the past 12 months, $121 million in the year to December 2025.

Revenue
$1.3bn$1.4bn$1.0bn$1.0bn$1.1bn
Operating margin
7.2%9.4%11.5%13.6%10.8%
Debt to equity
0.030.110.000.000.00
Shares outstanding
0.03bn0.03bn0.03bn0.03bn0.03bn

Health checks

  • Free cash flow positive5 of 5 years
  • Accounting looks honest (Beneish)Nothing unusual
  • Financial strength (Piotroski)3 of 9
  • Profit backed by cash (accruals)No
  • Debt0.00× equity
  • Revenue growth, five yearsSlow, 1.9% a year
  • Buying back its own sharesYes, 4% fewer since 2021

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Sales: $510 million last quarter, up 65% on a year ago.
  • Profit: $8 million, down 69% on a year ago.
  • It keeps 8 cents of each $1 of sales as operating profit, down from 13 cents a year earlier.
  • Spare cash over the past 12 months: $42 million, down from $104 million.
  • About the same number of shares as a year ago.
  • Debt is $1.2 billion more than cash. A year ago it had $43 million more cash than debt.
Sales by quarter
Sales by quarter
Quarter toAmount
September 2024$277m
December 2024Not reported
March 2025$246m
June 2025$310m
September 2025$311m
December 2025$269m
March 2026$356m
June 2026$510m
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024$34m
December 2024$46m
March 2025$21m
June 2025$26m
September 2025-$89m
December 2025-$2m
March 2026-$67m
June 2026$8m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
26 February 2026
Next quarterly (estimated, 10-Q)
4 November 2026

Who owns it

5 long-term investors we follow own it, up from 4 last quarter. 245 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

6 investors own more than 5%.

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

In the last 12 months, 4 insiders bought $2m of shares on the open market.

  • Bosway William T
    President and CEO, Director
    Bought
    Date
    26 May 2026
    Shares
    19,735
    Price
    $37.44
    Value
    $738,878
  • Bolanowski Katherine
    General Counsel, VP, Secretary
    Bought
    Date
    21 May 2026
    Shares
    1,400
    Price
    $35.63
    Value
    $49,886
  • Lovechio Joseph A
    VP and CFO
    Bought
    Date
    20 May 2026
    Shares
    1,000
    Price
    $34.62
    Value
    $34,620
  • Bosway William T
    President and CEO, Director
    Bought
    Date
    13 March 2026
    Shares
    1,000
    Price
    $41.37
    Value
    $41,370
  • METCALF JAMES S
    Director
    Bought
    Date
    10 March 2026
    Shares
    12,444
    Price
    $40.35
    Value
    $502,115
  • Bosway William T
    President and CEO, Director
    Bought
    Date
    10 March 2026
    Shares
    1,500
    Price
    $39.53
    Value
    $59,295
  • Bosway William T
    President and CEO, Director
    Bought
    Date
    9 March 2026
    Shares
    4,500
    Price
    $38.29
    Value
    $172,305

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 26 Feb 2026, plus the 10-Q filed 5 Aug 2026 and 5 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

  • Sales have barely grown: 1.9% a year.

Whether the price already reflects the risks is what the deep dive is for.

What changed in the risks this year

Companies must list what could hurt them each year. These are the parts that changed since last year’s report.

  • Acquisition accounting adjustments could adversely affect the Company’s financial results.

    Could happen
    The Company will account for the completion of the acquisition of OmniMax using the acquisition method of accounting. The Company will allocate the total estimated purchase price to net tangible assets, amortizable intangible assets and indefinite-lived intangible assets, and based on their fair values as of the date of completion of the acquisition of OmniMax record the excess, if any, of the purchase price over those fair values as goodwill. Differences between preliminary estimates and the final acquisition accounting may occur, and these differences could have a material impact on the consolidated financial statements and the combined company’s future results of operations and financial position.
    Read more
  • Prior to the acquisition of OmniMax, OmniMax was a privately-held company and its new obligations of being a part of a public company may require significant resources and management attention.

    Could happen
    Upon the closing of the acquisition of OmniMax, OmniMax and its subsidiaries became subsidiaries of the Company, and now need to comply with the Sarbanes-Oxley Act of 2002, as amended (“Sarbanes-Oxley”) and the rules and regulations subsequently implemented by the SEC and other regulatory bodies. As a private company, OmniMax’s internal controls were not designed to be in compliance with Sarbanes-Oxley or any other public company requirements. The Company will need to ensure that OmniMax establishes and maintains effective disclosure controls as well as internal controls and procedures for financial reporting, and such compliance efforts may be costly and may divert the attention of management. If the Company fails to create and maintain effective internal controls at OmniMax and its subsidiaries after the acquisition, the Company could report material weaknesses in the future, which would indicate that there is a reasonable possibility that the Company’s financial statements do not accurately reflect the Company’s financial condition.
    Read more
  • The Company may not have discovered undisclosed liabilities of OmniMax, if any.

    Could happen
    In the course of the due diligence review of OmniMax that the Company conducted prior to the acquisition of OmniMax, the Company may have been unable to quantify undisclosed liabilities of OmniMax and its subsidiaries, if any, and the Company will not be indemnified for any of these liabilities. If OmniMax has undisclosed liabilities, the Company, as a successor owner, will be responsible for such undisclosed liabilities. Such undisclosed liabilities could have an adverse effect on the business, results of operations, financial condition and cash flows of the Company.
    Read more
  • The Company incurred substantial indebtedness in connection with the acquisition of OmniMax.

    The Company incurred substantial indebtedness in connection with the acquisition of OmniMax. As of the closing of the acquisition, on a consolidated basis, the Company had approximately $1.3 billion in gross indebtedness outstanding under the Company’s Credit Agreement including (a) the Term Loan A Facility in an initial aggregate principal amount of $650 million, (b) the Term Loan B Facility in an initial aggregate principal amount of $650 million and (c) the Revolving Credit Facility in an initial aggregate commitment amount of $500 million, with the Term Loan A Facility and Term Loan B Facility fully drawn and approximately $482 million remaining available under the Revolving Credit Facility.
    Read more
  • The acquisition of OmniMax may not achieve its intended benefits, and certain difficulties, costs or expenses may outweigh such intended benefits.

    Could happen
    The Company may be unable to realize all of the anticipated benefits of the acquisition of OmniMax. The success of the acquisition will depend, in part, on its ability to realize the anticipated benefits of combining the Company’s residential business with the OmniMax business, including cost and revenue synergies. The anticipated benefits and synergies of the Company’s acquisition of OmniMax may not be realized fully or at all, may take longer to realize than expected or could have other adverse effects that the Company does not currently foresee.
    Read more

Read it in the annual report

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.