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Side-by-side financial comparison of A. O. Smith (AOS) and ARM HOLDINGS PLC (ARM). Click either name above to swap in a different company.

ARM HOLDINGS PLC is the larger business by last-quarter revenue ($1.2B vs $912.5M, roughly 1.4× A. O. Smith). ARM HOLDINGS PLC runs the higher net margin — 18.0% vs 13.7%, a 4.2% gap on every dollar of revenue. On growth, ARM HOLDINGS PLC posted the faster year-over-year revenue change (26.3% vs 0.0%). ARM HOLDINGS PLC produced more free cash flow last quarter ($186.0M vs $165.5M). Over the past eight quarters, ARM HOLDINGS PLC's revenue compounded faster (24.1% CAGR vs -3.4%).

A. O. Smith Corporation is an American manufacturer of both residential and commercial water heaters and boilers, and the largest manufacturer and marketer of water heaters in North America. It also supplies water treatment and purification products in the Asian market. The company has 27 locations worldwide, including five manufacturing facilities in North America, as well as plants in Bengaluru in India, Nanjing in China and Veldhoven in The Netherlands.

Arm Holdings plc is a British semiconductor and software design company headquartered in Cambridge, UK. It designs the Arm CPU architecture and licenses its processor designs and related intellectual property to chipmakers and device manufacturers worldwide. Arm-based chips power the vast majority of smartphones and an increasing share of laptops, data center servers, and embedded devices. The company listed on Nasdaq in September 2023 and remains majority-owned by SoftBank.

AOS vs ARM — Head-to-Head

Bigger by revenue
ARM
ARM
1.4× larger
ARM
$1.2B
$912.5M
AOS
Growing faster (revenue YoY)
ARM
ARM
+26.3% gap
ARM
26.3%
0.0%
AOS
Higher net margin
ARM
ARM
4.2% more per $
ARM
18.0%
13.7%
AOS
More free cash flow
ARM
ARM
$20.5M more FCF
ARM
$186.0M
$165.5M
AOS
Faster 2-yr revenue CAGR
ARM
ARM
Annualised
ARM
24.1%
-3.4%
AOS

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
AOS
AOS
ARM
ARM
Revenue
$912.5M
$1.2B
Net Profit
$125.4M
$223.0M
Gross Margin
38.4%
97.6%
Operating Margin
17.9%
14.9%
Net Margin
13.7%
18.0%
Revenue YoY
0.0%
26.3%
Net Profit YoY
14.3%
-11.5%
EPS (diluted)
$0.89
$0.21

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
AOS
AOS
ARM
ARM
Q4 25
$912.5M
$1.2B
Q3 25
$942.5M
$1.1B
Q2 25
$1.0B
$1.1B
Q1 25
$963.9M
Q4 24
$912.4M
$983.0M
Q3 24
$902.6M
$844.0M
Q2 24
$1.0B
$939.0M
Q1 24
$978.8M
Net Profit
AOS
AOS
ARM
ARM
Q4 25
$125.4M
$223.0M
Q3 25
$132.0M
$238.0M
Q2 25
$152.2M
$130.0M
Q1 25
$136.6M
Q4 24
$109.7M
$252.0M
Q3 24
$120.1M
$107.0M
Q2 24
$156.2M
$223.0M
Q1 24
$147.6M
Gross Margin
AOS
AOS
ARM
ARM
Q4 25
38.4%
97.6%
Q3 25
38.7%
97.4%
Q2 25
39.3%
97.2%
Q1 25
38.9%
Q4 24
37.1%
97.2%
Q3 24
37.4%
96.2%
Q2 24
38.7%
96.5%
Q1 24
39.3%
Operating Margin
AOS
AOS
ARM
ARM
Q4 25
17.9%
14.9%
Q3 25
18.6%
14.4%
Q2 25
20.4%
10.8%
Q1 25
19.1%
Q4 24
10.1%
17.8%
Q3 24
19.5%
7.6%
Q2 24
21.9%
19.4%
Q1 24
22.0%
Net Margin
AOS
AOS
ARM
ARM
Q4 25
13.7%
18.0%
Q3 25
14.0%
21.0%
Q2 25
15.0%
12.3%
Q1 25
14.2%
Q4 24
12.0%
25.6%
Q3 24
13.3%
12.7%
Q2 24
15.2%
23.7%
Q1 24
15.1%
EPS (diluted)
AOS
AOS
ARM
ARM
Q4 25
$0.89
$0.21
Q3 25
$0.94
$0.22
Q2 25
$1.07
$0.12
Q1 25
$0.95
Q4 24
$0.75
$0.24
Q3 24
$0.82
$0.10
Q2 24
$1.06
$0.21
Q1 24
$1.00

Balance Sheet & Financial Strength

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

Metric
AOS
AOS
ARM
ARM
Cash + ST InvestmentsLiquidity on hand
$193.2M
$3.5B
Total DebtLower is stronger
$155.0M
Stockholders' EquityBook value
$1.9B
$7.8B
Total Assets
$3.1B
$10.2B
Debt / EquityLower = less leverage
0.08×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AOS
AOS
ARM
ARM
Q4 25
$193.2M
$3.5B
Q3 25
$172.8M
$3.3B
Q2 25
$177.9M
$2.9B
Q1 25
$200.2M
Q4 24
$276.1M
$2.7B
Q3 24
$255.6M
$2.4B
Q2 24
$233.3M
$2.5B
Q1 24
$303.1M
Total Debt
AOS
AOS
ARM
ARM
Q4 25
$155.0M
Q3 25
Q2 25
Q1 25
Q4 24
$193.2M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AOS
AOS
ARM
ARM
Q4 25
$1.9B
$7.8B
Q3 25
$1.8B
$7.4B
Q2 25
$1.8B
$7.0B
Q1 25
$1.9B
Q4 24
$1.9B
$6.4B
Q3 24
$1.9B
$6.0B
Q2 24
$1.9B
$5.7B
Q1 24
$1.9B
Total Assets
AOS
AOS
ARM
ARM
Q4 25
$3.1B
$10.2B
Q3 25
$3.2B
$9.7B
Q2 25
$3.2B
$9.4B
Q1 25
$3.3B
Q4 24
$3.2B
$8.5B
Q3 24
$3.2B
$8.1B
Q2 24
$3.2B
$7.9B
Q1 24
$3.2B
Debt / Equity
AOS
AOS
ARM
ARM
Q4 25
0.08×
Q3 25
Q2 25
Q1 25
Q4 24
0.10×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
AOS
AOS
ARM
ARM
Operating Cash FlowLast quarter
$183.1M
$365.0M
Free Cash FlowOCF − Capex
$165.5M
$186.0M
FCF MarginFCF / Revenue
18.1%
15.0%
Capex IntensityCapex / Revenue
1.9%
14.4%
Cash ConversionOCF / Net Profit
1.46×
1.64×
TTM Free Cash FlowTrailing 4 quarters
$546.0M
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AOS
AOS
ARM
ARM
Q4 25
$183.1M
$365.0M
Q3 25
$255.4M
$567.0M
Q2 25
$139.6M
$332.0M
Q1 25
$38.7M
Q4 24
$221.9M
$423.0M
Q3 24
$195.9M
$6.0M
Q2 24
$57.4M
$-290.0M
Q1 24
$106.6M
Free Cash Flow
AOS
AOS
ARM
ARM
Q4 25
$165.5M
$186.0M
Q3 25
$240.6M
$429.0M
Q2 25
$122.5M
$178.0M
Q1 25
$17.4M
Q4 24
$191.3M
$360.0M
Q3 24
$163.4M
$-47.0M
Q2 24
$34.5M
$-319.0M
Q1 24
$84.6M
FCF Margin
AOS
AOS
ARM
ARM
Q4 25
18.1%
15.0%
Q3 25
25.5%
37.8%
Q2 25
12.1%
16.9%
Q1 25
1.8%
Q4 24
21.0%
36.6%
Q3 24
18.1%
-5.6%
Q2 24
3.4%
-34.0%
Q1 24
8.6%
Capex Intensity
AOS
AOS
ARM
ARM
Q4 25
1.9%
14.4%
Q3 25
1.6%
12.2%
Q2 25
1.7%
14.6%
Q1 25
2.2%
Q4 24
3.4%
6.4%
Q3 24
3.6%
6.3%
Q2 24
2.2%
3.1%
Q1 24
2.2%
Cash Conversion
AOS
AOS
ARM
ARM
Q4 25
1.46×
1.64×
Q3 25
1.93×
2.38×
Q2 25
0.92×
2.55×
Q1 25
0.28×
Q4 24
2.02×
1.68×
Q3 24
1.63×
0.06×
Q2 24
0.37×
-1.30×
Q1 24
0.72×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AOS
AOS

North America Segment$713.7M78%
Rest Of World$158.3M17%
Other$40.5M4%

ARM
ARM

Royalty$737.0M59%
Transferred Over Time$294.0M24%
Transferred At Point In Time$211.0M17%

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