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Side-by-side financial comparison of ACI WORLDWIDE, INC. (ACIW) and Amphenol (APH). Click either name above to swap in a different company.

Amphenol is the larger business by last-quarter revenue ($6.4B vs $481.6M, roughly 13.4× ACI WORLDWIDE, INC.). Amphenol runs the higher net margin — 18.6% vs 13.4%, a 5.2% gap on every dollar of revenue. On growth, Amphenol posted the faster year-over-year revenue change (49.1% vs 6.3%). Amphenol produced more free cash flow last quarter ($1.5B vs $116.6M). Over the past eight quarters, Amphenol's revenue compounded faster (40.6% CAGR vs 23.4%).

ACI Worldwide is a digital payments software company headquartered in Elkhorn, Nebraska, that processes billions of transactions daily equating to trillions of U.S. dollars for customers in 94 countries. Banks, financial institutions, merchants, billers, acquirers, issuers, and other third-party payment service providers use its intelligent solutions to deploy secure payment rails across all channels.

Amphenol Corporation is an American producer of electronic and fiber optic connectors, cable and interconnect systems such as coaxial cables. Amphenol is a portmanteau from the corporation's original name, American Phenolic Corp.

ACIW vs APH — Head-to-Head

Bigger by revenue
APH
APH
13.4× larger
APH
$6.4B
$481.6M
ACIW
Growing faster (revenue YoY)
APH
APH
+42.8% gap
APH
49.1%
6.3%
ACIW
Higher net margin
APH
APH
5.2% more per $
APH
18.6%
13.4%
ACIW
More free cash flow
APH
APH
$1.4B more FCF
APH
$1.5B
$116.6M
ACIW
Faster 2-yr revenue CAGR
APH
APH
Annualised
APH
40.6%
23.4%
ACIW

Income Statement — Q4 2025 vs Q4 2025

Metric
ACIW
ACIW
APH
APH
Revenue
$481.6M
$6.4B
Net Profit
$64.3M
$1.2B
Gross Margin
53.0%
38.2%
Operating Margin
22.6%
26.8%
Net Margin
13.4%
18.6%
Revenue YoY
6.3%
49.1%
Net Profit YoY
-34.7%
60.2%
EPS (diluted)
$0.61
$0.93

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
ACIW
ACIW
APH
APH
Q4 25
$481.6M
$6.4B
Q3 25
$482.4M
$6.2B
Q2 25
$401.3M
$5.7B
Q1 25
$394.6M
$4.8B
Q4 24
$453.0M
$4.3B
Q3 24
$451.8M
$4.0B
Q2 24
$373.5M
$3.6B
Q1 24
$316.0M
$3.3B
Net Profit
ACIW
ACIW
APH
APH
Q4 25
$64.3M
$1.2B
Q3 25
$91.3M
$1.2B
Q2 25
$12.2M
$1.1B
Q1 25
$58.9M
$737.8M
Q4 24
$98.6M
$746.1M
Q3 24
$81.4M
$604.4M
Q2 24
$30.9M
$524.8M
Q1 24
$-7.8M
$548.7M
Gross Margin
ACIW
ACIW
APH
APH
Q4 25
53.0%
38.2%
Q3 25
53.7%
38.1%
Q2 25
41.5%
36.3%
Q1 25
45.9%
34.2%
Q4 24
55.8%
34.3%
Q3 24
56.3%
33.6%
Q2 24
45.6%
33.6%
Q1 24
39.5%
33.4%
Operating Margin
ACIW
ACIW
APH
APH
Q4 25
22.6%
26.8%
Q3 25
26.5%
27.5%
Q2 25
8.7%
25.1%
Q1 25
14.8%
21.3%
Q4 24
27.0%
22.1%
Q3 24
27.1%
20.3%
Q2 24
14.4%
19.4%
Q1 24
3.0%
21.0%
Net Margin
ACIW
ACIW
APH
APH
Q4 25
13.4%
18.6%
Q3 25
18.9%
20.1%
Q2 25
3.0%
19.3%
Q1 25
14.9%
15.3%
Q4 24
21.8%
17.3%
Q3 24
18.0%
15.0%
Q2 24
8.3%
14.5%
Q1 24
-2.5%
16.9%
EPS (diluted)
ACIW
ACIW
APH
APH
Q4 25
$0.61
$0.93
Q3 25
$0.88
$0.97
Q2 25
$0.12
$0.86
Q1 25
$0.55
$0.58
Q4 24
$0.92
$0.16
Q3 24
$0.77
$0.48
Q2 24
$0.29
$0.41
Q1 24
$-0.07
$0.87

Balance Sheet & Financial Strength

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

Metric
ACIW
ACIW
APH
APH
Cash + ST InvestmentsLiquidity on hand
$196.5M
$11.4B
Total DebtLower is stronger
$817.6M
$14.6B
Stockholders' EquityBook value
$1.5B
$13.4B
Total Assets
$3.1B
$36.2B
Debt / EquityLower = less leverage
0.54×
1.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACIW
ACIW
APH
APH
Q4 25
$196.5M
$11.4B
Q3 25
$199.3M
$3.9B
Q2 25
$189.7M
$3.2B
Q1 25
$230.1M
$1.7B
Q4 24
$216.4M
$3.3B
Q3 24
$177.9M
$1.6B
Q2 24
$157.0M
$1.3B
Q1 24
$183.4M
$2.0B
Total Debt
ACIW
ACIW
APH
APH
Q4 25
$817.6M
$14.6B
Q3 25
$867.8M
$7.1B
Q2 25
$898.0M
$7.1B
Q1 25
$845.9M
$6.8B
Q4 24
$924.6M
$6.5B
Q3 24
$994.3M
$5.1B
Q2 24
$1.0B
$5.0B
Q1 24
$1.0B
$3.6B
Stockholders' Equity
ACIW
ACIW
APH
APH
Q4 25
$1.5B
$13.4B
Q3 25
$1.5B
$12.5B
Q2 25
$1.4B
$11.5B
Q1 25
$1.5B
$10.3B
Q4 24
$1.4B
$9.8B
Q3 24
$1.3B
$9.5B
Q2 24
$1.2B
$9.0B
Q1 24
$1.3B
$8.7B
Total Assets
ACIW
ACIW
APH
APH
Q4 25
$3.1B
$36.2B
Q3 25
$3.2B
$27.1B
Q2 25
$3.1B
$25.7B
Q1 25
$3.2B
$22.9B
Q4 24
$3.0B
$21.4B
Q3 24
$3.1B
$19.6B
Q2 24
$3.4B
$18.6B
Q1 24
$3.3B
$16.7B
Debt / Equity
ACIW
ACIW
APH
APH
Q4 25
0.54×
1.09×
Q3 25
0.59×
0.57×
Q2 25
0.64×
0.62×
Q1 25
0.57×
0.66×
Q4 24
0.65×
0.66×
Q3 24
0.75×
0.54×
Q2 24
0.82×
0.56×
Q1 24
0.81×
0.41×

Cash Flow & Capital Efficiency

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

Metric
ACIW
ACIW
APH
APH
Operating Cash FlowLast quarter
$121.8M
$1.7B
Free Cash FlowOCF − Capex
$116.6M
$1.5B
FCF MarginFCF / Revenue
24.2%
22.8%
Capex IntensityCapex / Revenue
1.1%
3.9%
Cash ConversionOCF / Net Profit
1.89×
1.44×
TTM Free Cash FlowTrailing 4 quarters
$309.9M
$4.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACIW
ACIW
APH
APH
Q4 25
$121.8M
$1.7B
Q3 25
$73.0M
$1.5B
Q2 25
$49.8M
$1.4B
Q1 25
$78.2M
$764.9M
Q4 24
$126.5M
$847.1M
Q3 24
$54.0M
$704.0M
Q2 24
$55.0M
$664.1M
Q1 24
$123.2M
$599.5M
Free Cash Flow
ACIW
ACIW
APH
APH
Q4 25
$116.6M
$1.5B
Q3 25
$69.6M
$1.2B
Q2 25
$47.6M
$1.1B
Q1 25
$76.1M
$576.3M
Q4 24
$119.5M
$647.3M
Q3 24
$50.5M
$474.0M
Q2 24
$53.3M
$522.8M
Q1 24
$120.0M
$505.2M
FCF Margin
ACIW
ACIW
APH
APH
Q4 25
24.2%
22.8%
Q3 25
14.4%
19.6%
Q2 25
11.9%
19.8%
Q1 25
19.3%
12.0%
Q4 24
26.4%
15.0%
Q3 24
11.2%
11.7%
Q2 24
14.3%
14.5%
Q1 24
38.0%
15.5%
Capex Intensity
ACIW
ACIW
APH
APH
Q4 25
1.1%
3.9%
Q3 25
0.7%
4.2%
Q2 25
0.5%
5.3%
Q1 25
0.5%
3.9%
Q4 24
1.5%
4.6%
Q3 24
0.8%
5.7%
Q2 24
0.5%
3.9%
Q1 24
1.0%
2.9%
Cash Conversion
ACIW
ACIW
APH
APH
Q4 25
1.89×
1.44×
Q3 25
0.80×
1.18×
Q2 25
4.08×
1.30×
Q1 25
1.33×
1.04×
Q4 24
1.28×
1.14×
Q3 24
0.66×
1.16×
Q2 24
1.78×
1.27×
Q1 24
1.09×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ACIW
ACIW

Issuing And Acquiring$183.7M38%
License$158.3M33%
Maintenance$50.8M11%
Software And Platform Service$49.6M10%
Merchant Payments$42.4M9%

APH
APH

Communications Solutions Segment$3.5B54%
Harsh Environment Solutions Segment$1.7B26%
Sales Channel Through Intermediary$1.4B21%

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