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Side-by-side financial comparison of DENNY'S Corp (DENN) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

Ribbon Communications Inc. is the larger business by last-quarter revenue ($162.6M vs $113.2M, roughly 1.4× DENNY'S Corp). Ribbon Communications Inc. runs the higher net margin — 54.8% vs 0.6%, a 54.2% gap on every dollar of revenue. On growth, DENNY'S Corp posted the faster year-over-year revenue change (1.3% vs -10.3%). Over the past eight quarters, DENNY'S Corp's revenue compounded faster (-0.9% CAGR vs -8.1%).

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.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

DENN vs RBBN — Head-to-Head

Bigger by revenue
RBBN
RBBN
1.4× larger
RBBN
$162.6M
$113.2M
DENN
Growing faster (revenue YoY)
DENN
DENN
+11.6% gap
DENN
1.3%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
54.2% more per $
RBBN
54.8%
0.6%
DENN
Faster 2-yr revenue CAGR
DENN
DENN
Annualised
DENN
-0.9%
-8.1%
RBBN

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
DENN
DENN
RBBN
RBBN
Revenue
$113.2M
$162.6M
Net Profit
$632.0K
$89.1M
Gross Margin
42.9%
Operating Margin
9.2%
37.6%
Net Margin
0.6%
54.8%
Revenue YoY
1.3%
-10.3%
Net Profit YoY
-90.3%
EPS (diluted)
$0.01
$0.50

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
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$227.3M
Q3 25
$113.2M
$215.4M
Q2 25
$117.7M
$220.6M
Q1 25
$111.6M
$181.3M
Q4 24
$114.7M
$251.4M
Q3 24
$111.8M
$210.2M
Q2 24
$115.9M
$192.6M
Net Profit
DENN
DENN
RBBN
RBBN
Q1 26
$89.1M
Q4 25
Q3 25
$632.0K
$-12.1M
Q2 25
$2.5M
$-11.1M
Q1 25
$326.0K
$-26.2M
Q4 24
$6.8M
Q3 24
$6.5M
$-13.4M
Q2 24
$3.6M
$-16.8M
Gross Margin
DENN
DENN
RBBN
RBBN
Q1 26
42.9%
Q4 25
53.3%
Q3 25
50.1%
Q2 25
49.6%
Q1 25
45.4%
Q4 24
55.7%
Q3 24
52.1%
Q2 24
50.8%
Operating Margin
DENN
DENN
RBBN
RBBN
Q1 26
37.6%
Q4 25
4.1%
Q3 25
9.2%
1.3%
Q2 25
7.3%
1.9%
Q1 25
4.7%
-10.8%
Q4 24
12.6%
13.2%
Q3 24
10.5%
-0.4%
Q2 24
7.9%
-1.0%
Net Margin
DENN
DENN
RBBN
RBBN
Q1 26
54.8%
Q4 25
Q3 25
0.6%
-5.6%
Q2 25
2.1%
-5.0%
Q1 25
0.3%
-14.5%
Q4 24
5.9%
Q3 24
5.8%
-6.4%
Q2 24
3.1%
-8.7%
EPS (diluted)
DENN
DENN
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.50
Q3 25
$0.01
$-0.07
Q2 25
$0.05
$-0.06
Q1 25
$0.01
$-0.15
Q4 24
$0.13
$0.05
Q3 24
$0.12
$-0.08
Q2 24
$0.07
$-0.10

Balance Sheet & Financial Strength

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

Metric
DENN
DENN
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$-32.7M
$419.1M
Total Assets
$502.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DENN
DENN
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$96.4M
Q3 25
$74.8M
Q2 25
$60.5M
Q1 25
$1.1M
$71.2M
Q4 24
$100.0K
$87.8M
Q3 24
$2.9M
$37.2M
Q2 24
$2.8M
$64.6M
Total Debt
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$270.6M
$348.3M
Q3 24
$349.1M
Q2 24
$350.0M
Stockholders' Equity
DENN
DENN
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$449.0M
Q3 25
$-32.7M
$360.1M
Q2 25
$-34.6M
$370.4M
Q1 25
$-36.4M
$381.8M
Q4 24
$-34.0M
$404.6M
Q3 24
$-54.5M
$395.5M
Q2 24
$-53.2M
$405.0M
Total Assets
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
$1.2B
Q3 25
$502.9M
$1.1B
Q2 25
$491.1M
$1.1B
Q1 25
$488.1M
$1.1B
Q4 24
$496.3M
$1.2B
Q3 24
$461.6M
$1.1B
Q2 24
$459.9M
$1.1B
Debt / Equity
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

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
RBBN
RBBN
Operating Cash FlowLast quarter
$16.0M
Free Cash FlowOCF − Capex
$16.0M
FCF MarginFCF / Revenue
14.1%
Capex IntensityCapex / Revenue
0.0%
Cash ConversionOCF / Net Profit
25.28×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
$29.2M
Q3 25
$16.0M
$26.5M
Q2 25
$9.4M
$-795.0K
Q1 25
$5.0M
$-3.5M
Q4 24
$8.5M
$61.8M
Q3 24
$6.6M
$-14.8M
Q2 24
$14.2M
$-9.8M
Free Cash Flow
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
$27.3M
Q3 25
$16.0M
$21.0M
Q2 25
$-6.5M
Q1 25
$-15.7M
Q4 24
$53.8M
Q3 24
$-23.7M
Q2 24
$-12.9M
FCF Margin
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
12.0%
Q3 25
14.1%
9.7%
Q2 25
-2.9%
Q1 25
-8.7%
Q4 24
21.4%
Q3 24
-11.3%
Q2 24
-6.7%
Capex Intensity
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
0.9%
Q3 25
0.0%
2.6%
Q2 25
2.6%
Q1 25
6.7%
Q4 24
3.2%
Q3 24
0.0%
4.2%
Q2 24
1.6%
Cash Conversion
DENN
DENN
RBBN
RBBN
Q1 26
Q4 25
Q3 25
25.28×
Q2 25
3.79×
Q1 25
15.38×
Q4 24
1.26×
Q3 24
1.01×
Q2 24
3.97×

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%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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