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Side-by-side financial comparison of DENNY'S Corp (DENN) and Energy Recovery, Inc. (ERII). Click either name above to swap in a different company.

DENNY'S Corp is the larger business by last-quarter revenue ($113.2M vs $66.9M, roughly 1.7× Energy Recovery, Inc.). Energy Recovery, Inc. runs the higher net margin — 40.2% vs 0.6%, a 39.7% gap on every dollar of revenue. On growth, DENNY'S Corp posted the faster year-over-year revenue change (1.3% vs -0.3%). DENNY'S Corp produced more free cash flow last quarter ($16.0M vs $6.4M). Over the past eight quarters, Energy Recovery, Inc.'s revenue compounded faster (8.1% CAGR vs -0.9%).

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.

Energy Recovery Inc. is an American manufacturer of energy recovery devices for water and CO2 refrigeration industries.

DENN vs ERII — Head-to-Head

Bigger by revenue
DENN
DENN
1.7× larger
DENN
$113.2M
$66.9M
ERII
Growing faster (revenue YoY)
DENN
DENN
+1.6% gap
DENN
1.3%
-0.3%
ERII
Higher net margin
ERII
ERII
39.7% more per $
ERII
40.2%
0.6%
DENN
More free cash flow
DENN
DENN
$9.5M more FCF
DENN
$16.0M
$6.4M
ERII
Faster 2-yr revenue CAGR
ERII
ERII
Annualised
ERII
8.1%
-0.9%
DENN

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
DENN
DENN
ERII
ERII
Revenue
$113.2M
$66.9M
Net Profit
$632.0K
$26.9M
Gross Margin
67.2%
Operating Margin
9.2%
46.8%
Net Margin
0.6%
40.2%
Revenue YoY
1.3%
-0.3%
Net Profit YoY
-90.3%
14.7%
EPS (diluted)
$0.01
$0.49

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
ERII
ERII
Q4 25
$66.9M
Q3 25
$113.2M
$32.0M
Q2 25
$117.7M
$28.1M
Q1 25
$111.6M
Q4 24
$114.7M
$67.1M
Q3 24
$111.8M
$38.6M
Q2 24
$115.9M
$27.2M
Q1 24
$110.0M
$12.1M
Net Profit
DENN
DENN
ERII
ERII
Q4 25
$26.9M
Q3 25
$632.0K
$3.9M
Q2 25
$2.5M
$2.1M
Q1 25
$326.0K
Q4 24
$6.8M
$23.5M
Q3 24
$6.5M
$8.5M
Q2 24
$3.6M
$-642.0K
Q1 24
$4.7M
$-8.3M
Gross Margin
DENN
DENN
ERII
ERII
Q4 25
67.2%
Q3 25
64.2%
Q2 25
64.0%
Q1 25
Q4 24
70.2%
Q3 24
65.1%
Q2 24
64.6%
Q1 24
59.0%
Operating Margin
DENN
DENN
ERII
ERII
Q4 25
46.8%
Q3 25
9.2%
11.4%
Q2 25
7.3%
5.3%
Q1 25
4.7%
Q4 24
12.6%
38.2%
Q3 24
10.5%
18.3%
Q2 24
7.9%
-7.4%
Q1 24
9.1%
-90.4%
Net Margin
DENN
DENN
ERII
ERII
Q4 25
40.2%
Q3 25
0.6%
12.1%
Q2 25
2.1%
7.3%
Q1 25
0.3%
Q4 24
5.9%
35.0%
Q3 24
5.8%
22.0%
Q2 24
3.1%
-2.4%
Q1 24
4.3%
-68.3%
EPS (diluted)
DENN
DENN
ERII
ERII
Q4 25
$0.49
Q3 25
$0.01
$0.07
Q2 25
$0.05
$0.04
Q1 25
$0.01
Q4 24
$0.13
$0.40
Q3 24
$0.12
$0.15
Q2 24
$0.07
$-0.01
Q1 24
$0.09
$-0.14

Balance Sheet & Financial Strength

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

Metric
DENN
DENN
ERII
ERII
Cash + ST InvestmentsLiquidity on hand
$75.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$-32.7M
$206.2M
Total Assets
$502.9M
$231.5M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DENN
DENN
ERII
ERII
Q4 25
$75.2M
Q3 25
$70.4M
Q2 25
$79.5M
Q1 25
$1.1M
Q4 24
$100.0K
$78.0M
Q3 24
$2.9M
$118.6M
Q2 24
$2.8M
$101.0M
Q1 24
$2.8M
$117.4M
Total Debt
DENN
DENN
ERII
ERII
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$270.6M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
DENN
DENN
ERII
ERII
Q4 25
$206.2M
Q3 25
$-32.7M
$180.8M
Q2 25
$-34.6M
$185.2M
Q1 25
$-36.4M
Q4 24
$-34.0M
$210.0M
Q3 24
$-54.5M
$233.9M
Q2 24
$-53.2M
$218.5M
Q1 24
$-55.7M
$216.0M
Total Assets
DENN
DENN
ERII
ERII
Q4 25
$231.5M
Q3 25
$502.9M
$209.6M
Q2 25
$491.1M
$212.3M
Q1 25
$488.1M
Q4 24
$496.3M
$242.8M
Q3 24
$461.6M
$262.7M
Q2 24
$459.9M
$249.0M
Q1 24
$460.4M
$244.3M

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
ERII
ERII
Operating Cash FlowLast quarter
$16.0M
$7.1M
Free Cash FlowOCF − Capex
$16.0M
$6.4M
FCF MarginFCF / Revenue
14.1%
9.6%
Capex IntensityCapex / Revenue
0.0%
1.0%
Cash ConversionOCF / Net Profit
25.28×
0.26×
TTM Free Cash FlowTrailing 4 quarters
$15.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DENN
DENN
ERII
ERII
Q4 25
$7.1M
Q3 25
$16.0M
$-3.1M
Q2 25
$9.4M
$4.1M
Q1 25
$5.0M
Q4 24
$8.5M
$9.0M
Q3 24
$6.6M
$-3.0M
Q2 24
$14.2M
$8.1M
Q1 24
$215.0K
$6.5M
Free Cash Flow
DENN
DENN
ERII
ERII
Q4 25
$6.4M
Q3 25
$16.0M
$-3.5M
Q2 25
$4.0M
Q1 25
Q4 24
$8.9M
Q3 24
$-3.2M
Q2 24
$7.9M
Q1 24
$5.7M
FCF Margin
DENN
DENN
ERII
ERII
Q4 25
9.6%
Q3 25
14.1%
-10.9%
Q2 25
14.3%
Q1 25
Q4 24
13.2%
Q3 24
-8.2%
Q2 24
28.9%
Q1 24
46.9%
Capex Intensity
DENN
DENN
ERII
ERII
Q4 25
1.0%
Q3 25
0.0%
1.1%
Q2 25
0.5%
Q1 25
Q4 24
0.2%
Q3 24
0.0%
0.4%
Q2 24
0.7%
Q1 24
6.8%
Cash Conversion
DENN
DENN
ERII
ERII
Q4 25
0.26×
Q3 25
25.28×
-0.81×
Q2 25
3.79×
2.02×
Q1 25
15.38×
Q4 24
1.26×
0.38×
Q3 24
1.01×
-0.35×
Q2 24
3.97×
Q1 24
0.05×

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%

ERII
ERII

Water Segment$38.6M58%
Other$11.0M16%
Original Equipment Manufacturer$10.6M16%
Aftermarket$6.6M10%

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