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Side-by-side financial comparison of Great Lakes Dredge & Dock CORP (GLDD) and GIBRALTAR INDUSTRIES, INC. (ROCK). Click either name above to swap in a different company.

Great Lakes Dredge & Dock CORP is the larger business by last-quarter revenue ($256.5M vs $225.0M, roughly 1.1× GIBRALTAR INDUSTRIES, INC.). On growth, Great Lakes Dredge & Dock CORP posted the faster year-over-year revenue change (26.5% vs 24.9%). Great Lakes Dredge & Dock CORP produced more free cash flow last quarter ($50.3M vs $26.2M). Over the past eight quarters, Great Lakes Dredge & Dock CORP's revenue compounded faster (13.6% CAGR vs -12.3%).

Great Lakes Dredge and Dock Company is an American company providing construction services in dredging and land reclamation, currently the largest such provider in the United States. GLD&D operates primarily in the United States but conducts one-quarter of its business overseas. The company was based in Oak Brook, Illinois, but in October 2020 relocated its corporate headquarters to Houston, Texas.

Gibraltar Industries, Inc. is a leading manufacturer and distributor of specialized building, infrastructure, and renewable energy products. Its offerings include ventilation systems, roofing accessories, solar mounting solutions, and landscape and garden products, serving residential, commercial construction, and clean energy markets primarily across North America, with a focus on innovative, sustainable solutions for its customers.

GLDD vs ROCK — Head-to-Head

Bigger by revenue
GLDD
GLDD
1.1× larger
GLDD
$256.5M
$225.0M
ROCK
Growing faster (revenue YoY)
GLDD
GLDD
+1.5% gap
GLDD
26.5%
24.9%
ROCK
More free cash flow
GLDD
GLDD
$24.1M more FCF
GLDD
$50.3M
$26.2M
ROCK
Faster 2-yr revenue CAGR
GLDD
GLDD
Annualised
GLDD
13.6%
-12.3%
ROCK

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
GLDD
GLDD
ROCK
ROCK
Revenue
$256.5M
$225.0M
Net Profit
$12.6M
Gross Margin
20.9%
25.3%
Operating Margin
12.7%
7.9%
Net Margin
4.9%
Revenue YoY
26.5%
24.9%
Net Profit YoY
-35.9%
EPS (diluted)
$0.19

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
GLDD
GLDD
ROCK
ROCK
Q4 25
$256.5M
$225.0M
Q3 25
$195.2M
$310.9M
Q2 25
$193.8M
$309.5M
Q1 25
$242.9M
$290.0M
Q4 24
$202.8M
$180.1M
Q3 24
$191.2M
$277.1M
Q2 24
$170.1M
$273.6M
Q1 24
$198.7M
$292.5M
Net Profit
GLDD
GLDD
ROCK
ROCK
Q4 25
$12.6M
Q3 25
$17.7M
$-89.1M
Q2 25
$9.7M
$26.0M
Q1 25
$33.4M
$21.1M
Q4 24
$19.7M
Q3 24
$8.9M
$34.0M
Q2 24
$7.7M
$32.2M
Q1 24
$21.0M
$24.9M
Gross Margin
GLDD
GLDD
ROCK
ROCK
Q4 25
20.9%
25.3%
Q3 25
22.4%
26.6%
Q2 25
18.9%
28.4%
Q1 25
28.6%
26.8%
Q4 24
24.1%
29.0%
Q3 24
19.0%
29.4%
Q2 24
17.5%
30.5%
Q1 24
22.9%
28.9%
Operating Margin
GLDD
GLDD
ROCK
ROCK
Q4 25
12.7%
7.9%
Q3 25
14.4%
12.8%
Q2 25
8.8%
12.8%
Q1 25
20.6%
8.8%
Q4 24
14.8%
13.3%
Q3 24
8.7%
15.6%
Q2 24
8.6%
14.9%
Q1 24
15.8%
10.8%
Net Margin
GLDD
GLDD
ROCK
ROCK
Q4 25
4.9%
Q3 25
9.1%
-28.6%
Q2 25
5.0%
8.4%
Q1 25
13.8%
7.3%
Q4 24
9.7%
Q3 24
4.6%
12.3%
Q2 24
4.5%
11.8%
Q1 24
10.6%
8.5%
EPS (diluted)
GLDD
GLDD
ROCK
ROCK
Q4 25
$0.19
Q3 25
$0.26
$-2.98
Q2 25
$0.14
$0.87
Q1 25
$0.49
Q4 24
$0.29
Q3 24
$0.13
$1.11
Q2 24
$0.11
$1.05
Q1 24
$0.31

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
GLDD
GLDD
ROCK
ROCK
Cash + ST InvestmentsLiquidity on hand
$13.4M
$115.7M
Total DebtLower is stronger
$378.2M
$0
Stockholders' EquityBook value
$517.1M
$950.4M
Total Assets
$1.3B
$1.4B
Debt / EquityLower = less leverage
0.73×
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GLDD
GLDD
ROCK
ROCK
Q4 25
$13.4M
$115.7M
Q3 25
$12.7M
$89.4M
Q2 25
$2.9M
$43.3M
Q1 25
$11.3M
$25.1M
Q4 24
$10.2M
$269.5M
Q3 24
$12.0M
$228.9M
Q2 24
$23.1M
$179.1M
Q1 24
$22.8M
$146.7M
Total Debt
GLDD
GLDD
ROCK
ROCK
Q4 25
$378.2M
$0
Q3 25
$0
Q2 25
$0
Q1 25
$0
Q4 24
$448.2M
$0
Q3 24
$0
Q2 24
$0
Q1 24
$0
Stockholders' Equity
GLDD
GLDD
ROCK
ROCK
Q4 25
$517.1M
$950.4M
Q3 25
$502.1M
$951.8M
Q2 25
$481.9M
$1.0B
Q1 25
$479.9M
$1.0B
Q4 24
$448.9M
$1.0B
Q3 24
$425.4M
$1.0B
Q2 24
$418.0M
$975.7M
Q1 24
$409.0M
$940.2M
Total Assets
GLDD
GLDD
ROCK
ROCK
Q4 25
$1.3B
$1.4B
Q3 25
$1.3B
$1.4B
Q2 25
$1.2B
$1.5B
Q1 25
$1.2B
$1.4B
Q4 24
$1.3B
$1.4B
Q3 24
$1.1B
$1.4B
Q2 24
$1.1B
$1.4B
Q1 24
$1.1B
$1.3B
Debt / Equity
GLDD
GLDD
ROCK
ROCK
Q4 25
0.73×
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
1.00×
0.00×
Q3 24
0.00×
Q2 24
0.00×
Q1 24
0.00×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
GLDD
GLDD
ROCK
ROCK
Operating Cash FlowLast quarter
$79.7M
$35.5M
Free Cash FlowOCF − Capex
$50.3M
$26.2M
FCF MarginFCF / Revenue
19.6%
11.7%
Capex IntensityCapex / Revenue
11.5%
4.1%
Cash ConversionOCF / Net Profit
6.31×
TTM Free Cash FlowTrailing 4 quarters
$99.5M
$120.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GLDD
GLDD
ROCK
ROCK
Q4 25
$79.7M
$35.5M
Q3 25
$49.2M
$73.0M
Q2 25
$56.9M
$44.9M
Q1 25
$60.9M
$13.7M
Q4 24
$-13.5M
$19.9M
Q3 24
$26.8M
$64.7M
Q2 24
$18.4M
$36.5M
Q1 24
$38.4M
$53.2M
Free Cash Flow
GLDD
GLDD
ROCK
ROCK
Q4 25
$50.3M
$26.2M
Q3 25
$13.2M
$64.8M
Q2 25
$-3.7M
$27.3M
Q1 25
$39.6M
$2.3M
Q4 24
$-36.1M
$14.1M
Q3 24
$-11.5M
$60.5M
Q2 24
$-34.0M
$33.5M
Q1 24
$26.5M
$48.8M
FCF Margin
GLDD
GLDD
ROCK
ROCK
Q4 25
19.6%
11.7%
Q3 25
6.8%
20.8%
Q2 25
-1.9%
8.8%
Q1 25
16.3%
0.8%
Q4 24
-17.8%
7.8%
Q3 24
-6.0%
21.8%
Q2 24
-20.0%
12.2%
Q1 24
13.4%
16.7%
Capex Intensity
GLDD
GLDD
ROCK
ROCK
Q4 25
11.5%
4.1%
Q3 25
18.4%
2.6%
Q2 25
31.3%
5.7%
Q1 25
8.7%
3.9%
Q4 24
11.2%
3.3%
Q3 24
20.0%
1.5%
Q2 24
30.8%
1.1%
Q1 24
6.0%
1.5%
Cash Conversion
GLDD
GLDD
ROCK
ROCK
Q4 25
6.31×
Q3 25
2.77×
Q2 25
5.87×
1.73×
Q1 25
1.82×
0.65×
Q4 24
-0.69×
Q3 24
3.02×
1.90×
Q2 24
2.39×
1.13×
Q1 24
1.83×
2.13×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

GLDD
GLDD

Segment breakdown not available.

ROCK
ROCK

Transferred At Point In Time$183.5M82%
Infrastructure$22.5M10%
Other$18.9M8%

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