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Side-by-side financial comparison of DENNY'S Corp (DENN) and GIBRALTAR INDUSTRIES, INC. (ROCK). Click either name above to swap in a different company.

GIBRALTAR INDUSTRIES, INC. is the larger business by last-quarter revenue ($225.0M vs $113.2M, roughly 2.0× DENNY'S Corp). On growth, GIBRALTAR INDUSTRIES, INC. posted the faster year-over-year revenue change (24.9% vs 1.3%). GIBRALTAR INDUSTRIES, INC. produced more free cash flow last quarter ($26.2M vs $16.0M). Over the past eight quarters, DENNY'S Corp's revenue compounded faster (-0.9% CAGR vs -12.3%).

Denny's is an American table service diner-style restaurant chain. It operates over 1,400 restaurants in the United States, Canada, México, Puerto Rico, and several other international locations.

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.

DENN vs ROCK — Head-to-Head

Bigger by revenue
ROCK
ROCK
2.0× larger
ROCK
$225.0M
$113.2M
DENN
Growing faster (revenue YoY)
ROCK
ROCK
+23.6% gap
ROCK
24.9%
1.3%
DENN
More free cash flow
ROCK
ROCK
$10.3M more FCF
ROCK
$26.2M
$16.0M
DENN
Faster 2-yr revenue CAGR
DENN
DENN
Annualised
DENN
-0.9%
-12.3%
ROCK

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
DENN
DENN
ROCK
ROCK
Revenue
$113.2M
$225.0M
Net Profit
$632.0K
Gross Margin
25.3%
Operating Margin
9.2%
7.9%
Net Margin
0.6%
Revenue YoY
1.3%
24.9%
Net Profit YoY
-90.3%
EPS (diluted)
$0.01

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
DENN
DENN
ROCK
ROCK
Q4 25
$225.0M
Q3 25
$113.2M
$310.9M
Q2 25
$117.7M
$309.5M
Q1 25
$111.6M
$290.0M
Q4 24
$114.7M
$180.1M
Q3 24
$111.8M
$277.1M
Q2 24
$115.9M
$273.6M
Q1 24
$110.0M
$292.5M
Net Profit
DENN
DENN
ROCK
ROCK
Q4 25
Q3 25
$632.0K
$-89.1M
Q2 25
$2.5M
$26.0M
Q1 25
$326.0K
$21.1M
Q4 24
$6.8M
Q3 24
$6.5M
$34.0M
Q2 24
$3.6M
$32.2M
Q1 24
$4.7M
$24.9M
Gross Margin
DENN
DENN
ROCK
ROCK
Q4 25
25.3%
Q3 25
26.6%
Q2 25
28.4%
Q1 25
26.8%
Q4 24
29.0%
Q3 24
29.4%
Q2 24
30.5%
Q1 24
28.9%
Operating Margin
DENN
DENN
ROCK
ROCK
Q4 25
7.9%
Q3 25
9.2%
12.8%
Q2 25
7.3%
12.8%
Q1 25
4.7%
8.8%
Q4 24
12.6%
13.3%
Q3 24
10.5%
15.6%
Q2 24
7.9%
14.9%
Q1 24
9.1%
10.8%
Net Margin
DENN
DENN
ROCK
ROCK
Q4 25
Q3 25
0.6%
-28.6%
Q2 25
2.1%
8.4%
Q1 25
0.3%
7.3%
Q4 24
5.9%
Q3 24
5.8%
12.3%
Q2 24
3.1%
11.8%
Q1 24
4.3%
8.5%
EPS (diluted)
DENN
DENN
ROCK
ROCK
Q4 25
Q3 25
$0.01
$-2.98
Q2 25
$0.05
$0.87
Q1 25
$0.01
Q4 24
$0.13
Q3 24
$0.12
$1.11
Q2 24
$0.07
$1.05
Q1 24
$0.09

Balance Sheet & Financial Strength

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

Metric
DENN
DENN
ROCK
ROCK
Cash + ST InvestmentsLiquidity on hand
$115.7M
Total DebtLower is stronger
$0
Stockholders' EquityBook value
$-32.7M
$950.4M
Total Assets
$502.9M
$1.4B
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DENN
DENN
ROCK
ROCK
Q4 25
$115.7M
Q3 25
$89.4M
Q2 25
$43.3M
Q1 25
$1.1M
$25.1M
Q4 24
$100.0K
$269.5M
Q3 24
$2.9M
$228.9M
Q2 24
$2.8M
$179.1M
Q1 24
$2.8M
$146.7M
Total Debt
DENN
DENN
ROCK
ROCK
Q4 25
$0
Q3 25
$0
Q2 25
$0
Q1 25
$0
Q4 24
$270.6M
$0
Q3 24
$0
Q2 24
$0
Q1 24
$0
Stockholders' Equity
DENN
DENN
ROCK
ROCK
Q4 25
$950.4M
Q3 25
$-32.7M
$951.8M
Q2 25
$-34.6M
$1.0B
Q1 25
$-36.4M
$1.0B
Q4 24
$-34.0M
$1.0B
Q3 24
$-54.5M
$1.0B
Q2 24
$-53.2M
$975.7M
Q1 24
$-55.7M
$940.2M
Total Assets
DENN
DENN
ROCK
ROCK
Q4 25
$1.4B
Q3 25
$502.9M
$1.4B
Q2 25
$491.1M
$1.5B
Q1 25
$488.1M
$1.4B
Q4 24
$496.3M
$1.4B
Q3 24
$461.6M
$1.4B
Q2 24
$459.9M
$1.4B
Q1 24
$460.4M
$1.3B
Debt / Equity
DENN
DENN
ROCK
ROCK
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
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
DENN
DENN
ROCK
ROCK
Operating Cash FlowLast quarter
$16.0M
$35.5M
Free Cash FlowOCF − Capex
$16.0M
$26.2M
FCF MarginFCF / Revenue
14.1%
11.7%
Capex IntensityCapex / Revenue
0.0%
4.1%
Cash ConversionOCF / Net Profit
25.28×
TTM Free Cash FlowTrailing 4 quarters
$120.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DENN
DENN
ROCK
ROCK
Q4 25
$35.5M
Q3 25
$16.0M
$73.0M
Q2 25
$9.4M
$44.9M
Q1 25
$5.0M
$13.7M
Q4 24
$8.5M
$19.9M
Q3 24
$6.6M
$64.7M
Q2 24
$14.2M
$36.5M
Q1 24
$215.0K
$53.2M
Free Cash Flow
DENN
DENN
ROCK
ROCK
Q4 25
$26.2M
Q3 25
$16.0M
$64.8M
Q2 25
$27.3M
Q1 25
$2.3M
Q4 24
$14.1M
Q3 24
$60.5M
Q2 24
$33.5M
Q1 24
$48.8M
FCF Margin
DENN
DENN
ROCK
ROCK
Q4 25
11.7%
Q3 25
14.1%
20.8%
Q2 25
8.8%
Q1 25
0.8%
Q4 24
7.8%
Q3 24
21.8%
Q2 24
12.2%
Q1 24
16.7%
Capex Intensity
DENN
DENN
ROCK
ROCK
Q4 25
4.1%
Q3 25
0.0%
2.6%
Q2 25
5.7%
Q1 25
3.9%
Q4 24
3.3%
Q3 24
0.0%
1.5%
Q2 24
1.1%
Q1 24
1.5%
Cash Conversion
DENN
DENN
ROCK
ROCK
Q4 25
Q3 25
25.28×
Q2 25
3.79×
1.73×
Q1 25
15.38×
0.65×
Q4 24
1.26×
Q3 24
1.01×
1.90×
Q2 24
3.97×
1.13×
Q1 24
0.05×
2.13×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DENN
DENN

Franchisor Owned Outlet$57.4M51%
Royalty$27.7M25%
Advertising$18.6M16%
Occupancy$7.7M7%
Initial And Other Fees$1.7M1%

ROCK
ROCK

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

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