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Side-by-side financial comparison of Constellation Energy (CEG) and FISERV INC (FISV). Click either name above to swap in a different company.

Constellation Energy is the larger business by last-quarter revenue ($5.7B vs $5.0B, roughly 1.1× FISERV INC). FISERV INC runs the higher net margin — 11.4% vs 7.6%, a 3.8% gap on every dollar of revenue. On growth, Constellation Energy posted the faster year-over-year revenue change (25.8% vs -2.0%). FISERV INC produced more free cash flow last quarter ($259.0M vs $-181.0M). Over the past eight quarters, Constellation Energy's revenue compounded faster (4.0% CAGR vs -0.8%).

Constellation Energy Corporation is an American energy company headquartered in Baltimore, Maryland. The company provides electric power, natural gas, and energy management services. It has approximately two million customers across the continental United States.

Fiserv, Inc. is an American multinational financial technology company headquartered in Milwaukee, Wisconsin. The company processes debit and credit card transactions, loyalty programs, loans, electronic bill pay, wires and ACH transfers, check deposits, and ATM transactions on behalf of banking institutions. The company also produces debit and credit cards and point of sale terminals.

CEG vs FISV — Head-to-Head

Bigger by revenue
CEG
CEG
1.1× larger
CEG
$5.7B
$5.0B
FISV
Growing faster (revenue YoY)
CEG
CEG
+27.8% gap
CEG
25.8%
-2.0%
FISV
Higher net margin
FISV
FISV
3.8% more per $
FISV
11.4%
7.6%
CEG
More free cash flow
FISV
FISV
$440.0M more FCF
FISV
$259.0M
$-181.0M
CEG
Faster 2-yr revenue CAGR
CEG
CEG
Annualised
CEG
4.0%
-0.8%
FISV

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CEG
CEG
FISV
FISV
Revenue
$5.7B
$5.0B
Net Profit
$432.0M
$573.0M
Gross Margin
Operating Margin
10.5%
18.3%
Net Margin
7.6%
11.4%
Revenue YoY
25.8%
-2.0%
Net Profit YoY
-49.3%
-32.4%
EPS (diluted)
$1.38
$1.07

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
CEG
CEG
FISV
FISV
Q1 26
$5.0B
Q4 25
$5.7B
$5.3B
Q3 25
$5.7B
$5.3B
Q2 25
$5.2B
$5.5B
Q1 25
$6.1B
$5.1B
Q4 24
$4.5B
$5.3B
Q3 24
$4.8B
$5.2B
Q2 24
$4.4B
$5.1B
Net Profit
CEG
CEG
FISV
FISV
Q1 26
$573.0M
Q4 25
$432.0M
$811.0M
Q3 25
$930.0M
$792.0M
Q2 25
$839.0M
$1.0B
Q1 25
$118.0M
$851.0M
Q4 24
$852.0M
$938.0M
Q3 24
$1.2B
$564.0M
Q2 24
$814.0M
$894.0M
Operating Margin
CEG
CEG
FISV
FISV
Q1 26
18.3%
Q4 25
10.5%
24.4%
Q3 25
19.0%
27.3%
Q2 25
18.4%
30.7%
Q1 25
7.4%
27.2%
Q4 24
21.5%
31.8%
Q3 24
30.7%
30.7%
Q2 24
25.0%
28.0%
Net Margin
CEG
CEG
FISV
FISV
Q1 26
11.4%
Q4 25
7.6%
15.3%
Q3 25
16.3%
15.0%
Q2 25
16.3%
18.6%
Q1 25
1.9%
16.6%
Q4 24
18.8%
17.9%
Q3 24
25.1%
10.8%
Q2 24
18.5%
17.5%
EPS (diluted)
CEG
CEG
FISV
FISV
Q1 26
$1.07
Q4 25
$1.38
$1.51
Q3 25
$2.97
$1.46
Q2 25
$2.67
$1.86
Q1 25
$0.38
$1.51
Q4 24
$2.71
$1.63
Q3 24
$3.82
$0.98
Q2 24
$2.58
$1.53

Balance Sheet & Financial Strength

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

Metric
CEG
CEG
FISV
FISV
Cash + ST InvestmentsLiquidity on hand
$3.6B
$829.0M
Total DebtLower is stronger
$7.4B
$27.9B
Stockholders' EquityBook value
$14.5B
$26.2B
Total Assets
$57.2B
$80.5B
Debt / EquityLower = less leverage
0.51×
1.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CEG
CEG
FISV
FISV
Q1 26
$829.0M
Q4 25
$3.6B
$798.0M
Q3 25
$4.0B
$1.1B
Q2 25
$2.0B
$999.0M
Q1 25
$1.8B
$1.2B
Q4 24
$3.0B
$1.2B
Q3 24
$1.8B
$1.2B
Q2 24
$311.0M
$1.2B
Total Debt
CEG
CEG
FISV
FISV
Q1 26
$27.9B
Q4 25
$7.4B
$27.8B
Q3 25
$28.9B
Q2 25
$28.1B
Q1 25
$27.0B
Q4 24
$8.5B
$23.7B
Q3 24
$24.1B
Q2 24
$24.4B
Stockholders' Equity
CEG
CEG
FISV
FISV
Q1 26
$26.2B
Q4 25
$14.5B
$25.8B
Q3 25
$14.3B
$25.1B
Q2 25
$13.4B
$25.2B
Q1 25
$13.0B
$25.9B
Q4 24
$13.2B
$27.1B
Q3 24
$12.6B
$27.8B
Q2 24
$11.4B
$28.2B
Total Assets
CEG
CEG
FISV
FISV
Q1 26
$80.5B
Q4 25
$57.2B
$80.1B
Q3 25
$56.2B
$79.4B
Q2 25
$53.0B
$81.5B
Q1 25
$52.3B
$80.4B
Q4 24
$52.9B
$77.2B
Q3 24
$51.8B
$79.8B
Q2 24
$51.3B
$93.4B
Debt / Equity
CEG
CEG
FISV
FISV
Q1 26
1.06×
Q4 25
0.51×
1.08×
Q3 25
1.15×
Q2 25
1.11×
Q1 25
1.04×
Q4 24
0.64×
0.88×
Q3 24
0.87×
Q2 24
0.87×

Cash Flow & Capital Efficiency

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

Metric
CEG
CEG
FISV
FISV
Operating Cash FlowLast quarter
$805.0M
$599.0M
Free Cash FlowOCF − Capex
$-181.0M
$259.0M
FCF MarginFCF / Revenue
-3.2%
5.2%
Capex IntensityCapex / Revenue
17.3%
9.1%
Cash ConversionOCF / Net Profit
1.86×
1.05×
TTM Free Cash FlowTrailing 4 quarters
$1.3B
$4.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CEG
CEG
FISV
FISV
Q1 26
$599.0M
Q4 25
$805.0M
$1.9B
Q3 25
$1.8B
$1.8B
Q2 25
$1.5B
$1.7B
Q1 25
$107.0M
$648.0M
Q4 24
$-1.0B
$2.2B
Q3 24
$-112.0M
$2.2B
Q2 24
$-613.0M
$1.3B
Free Cash Flow
CEG
CEG
FISV
FISV
Q1 26
$259.0M
Q4 25
$-181.0M
$1.5B
Q3 25
$1.5B
$1.3B
Q2 25
$710.0M
$1.2B
Q1 25
$-699.0M
$313.0M
Q4 24
$-1.7B
$1.8B
Q3 24
$-664.0M
$1.8B
Q2 24
$-1.2B
$993.0M
FCF Margin
CEG
CEG
FISV
FISV
Q1 26
5.2%
Q4 25
-3.2%
28.4%
Q3 25
25.6%
24.7%
Q2 25
13.8%
21.5%
Q1 25
-11.4%
6.1%
Q4 24
-38.6%
34.7%
Q3 24
-13.9%
35.2%
Q2 24
-26.3%
19.4%
Capex Intensity
CEG
CEG
FISV
FISV
Q1 26
9.1%
Q4 25
17.3%
8.4%
Q3 25
6.8%
9.6%
Q2 25
14.9%
8.7%
Q1 25
13.2%
6.5%
Q4 24
16.1%
7.6%
Q3 24
11.6%
7.7%
Q2 24
12.4%
6.8%
Cash Conversion
CEG
CEG
FISV
FISV
Q1 26
1.05×
Q4 25
1.86×
2.40×
Q3 25
1.99×
2.28×
Q2 25
1.76×
1.62×
Q1 25
0.91×
0.76×
Q4 24
-1.19×
2.37×
Q3 24
-0.09×
3.97×
Q2 24
-0.75×
1.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CEG
CEG

Constellation Mid Atlantic$1.6B29%
Constellation Midwest$1.3B23%
Constellation Other Regions$1.1B20%
Other$660.0M12%
Constellation New York$618.0M11%
Constellation ERCOT$292.0M5%

FISV
FISV

Processing and services$4.1B81%
Product$957.0M19%

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