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

Pentair is the larger business by last-quarter revenue ($1.0B vs $912.5M, roughly 1.1× A. O. Smith). Pentair runs the higher net margin — 16.6% vs 13.7%, a 2.9% gap on every dollar of revenue. On growth, Pentair posted the faster year-over-year revenue change (2.6% vs 0.0%). A. O. Smith produced more free cash flow last quarter ($165.5M vs $-85.7M). Over the past eight quarters, Pentair's revenue compounded faster (-2.9% 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.

Pentair plc (PNR) is an American water treatment company incorporated in Ireland with tax residency in UK, with its main U.S. office in Golden Valley, Minnesota. Pentair was founded in the US, with 65% of company's revenue coming from the US and Canada as of 2017. PNR was reorganized in 2014, shifting the corporate domicile from Switzerland to Ireland.

AOS vs PNR — Head-to-Head

Bigger by revenue
PNR
PNR
1.1× larger
PNR
$1.0B
$912.5M
AOS
Growing faster (revenue YoY)
PNR
PNR
+2.6% gap
PNR
2.6%
0.0%
AOS
Higher net margin
PNR
PNR
2.9% more per $
PNR
16.6%
13.7%
AOS
More free cash flow
AOS
AOS
$251.2M more FCF
AOS
$165.5M
$-85.7M
PNR
Faster 2-yr revenue CAGR
PNR
PNR
Annualised
PNR
-2.9%
-3.4%
AOS

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AOS
AOS
PNR
PNR
Revenue
$912.5M
$1.0B
Net Profit
$125.4M
$172.4M
Gross Margin
38.4%
41.8%
Operating Margin
17.9%
20.3%
Net Margin
13.7%
16.6%
Revenue YoY
0.0%
2.6%
Net Profit YoY
14.3%
11.3%
EPS (diluted)
$0.89

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
PNR
PNR
Q1 26
$1.0B
Q4 25
$912.5M
$1.0B
Q3 25
$942.5M
$1.0B
Q2 25
$1.0B
$1.1B
Q1 25
$963.9M
$1.0B
Q4 24
$912.4M
$972.9M
Q3 24
$902.6M
$993.4M
Q2 24
$1.0B
$1.1B
Net Profit
AOS
AOS
PNR
PNR
Q1 26
$172.4M
Q4 25
$125.4M
$166.1M
Q3 25
$132.0M
$184.3M
Q2 25
$152.2M
$148.5M
Q1 25
$136.6M
$154.9M
Q4 24
$109.7M
$166.4M
Q3 24
$120.1M
$139.6M
Q2 24
$156.2M
$186.1M
Gross Margin
AOS
AOS
PNR
PNR
Q1 26
41.8%
Q4 25
38.4%
40.4%
Q3 25
38.7%
41.0%
Q2 25
39.3%
40.7%
Q1 25
38.9%
39.9%
Q4 24
37.1%
38.8%
Q3 24
37.4%
39.6%
Q2 24
38.7%
39.8%
Operating Margin
AOS
AOS
PNR
PNR
Q1 26
20.3%
Q4 25
17.9%
20.1%
Q3 25
18.6%
22.7%
Q2 25
20.4%
19.4%
Q1 25
19.1%
20.1%
Q4 24
10.1%
20.1%
Q3 24
19.5%
18.1%
Q2 24
21.9%
22.6%
Net Margin
AOS
AOS
PNR
PNR
Q1 26
16.6%
Q4 25
13.7%
16.3%
Q3 25
14.0%
18.0%
Q2 25
15.0%
13.2%
Q1 25
14.2%
15.3%
Q4 24
12.0%
17.1%
Q3 24
13.3%
14.1%
Q2 24
15.2%
16.9%
EPS (diluted)
AOS
AOS
PNR
PNR
Q1 26
Q4 25
$0.89
$1.01
Q3 25
$0.94
$1.12
Q2 25
$1.07
$0.90
Q1 25
$0.95
$0.93
Q4 24
$0.75
$0.99
Q3 24
$0.82
$0.84
Q2 24
$1.06
$1.11

Balance Sheet & Financial Strength

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

Metric
AOS
AOS
PNR
PNR
Cash + ST InvestmentsLiquidity on hand
$193.2M
$67.7M
Total DebtLower is stronger
$155.0M
$1.9B
Stockholders' EquityBook value
$1.9B
$3.8B
Total Assets
$3.1B
$7.1B
Debt / EquityLower = less leverage
0.08×
0.51×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AOS
AOS
PNR
PNR
Q1 26
$67.7M
Q4 25
$193.2M
Q3 25
$172.8M
$128.4M
Q2 25
$177.9M
$143.0M
Q1 25
$200.2M
$140.6M
Q4 24
$276.1M
$118.7M
Q3 24
$255.6M
$218.1M
Q2 24
$233.3M
$214.3M
Total Debt
AOS
AOS
PNR
PNR
Q1 26
$1.9B
Q4 25
$155.0M
$1.6B
Q3 25
$1.6B
Q2 25
$1.4B
Q1 25
$1.8B
Q4 24
$193.2M
$1.6B
Q3 24
Q2 24
$1.8B
Stockholders' Equity
AOS
AOS
PNR
PNR
Q1 26
$3.8B
Q4 25
$1.9B
$3.9B
Q3 25
$1.8B
$3.8B
Q2 25
$1.8B
$3.7B
Q1 25
$1.9B
$3.6B
Q4 24
$1.9B
$3.6B
Q3 24
$1.9B
$3.5B
Q2 24
$1.9B
$3.4B
Total Assets
AOS
AOS
PNR
PNR
Q1 26
$7.1B
Q4 25
$3.1B
$6.9B
Q3 25
$3.2B
$6.8B
Q2 25
$3.2B
$6.5B
Q1 25
$3.3B
$6.7B
Q4 24
$3.2B
$6.4B
Q3 24
$3.2B
$6.5B
Q2 24
$3.2B
$6.5B
Debt / Equity
AOS
AOS
PNR
PNR
Q1 26
0.51×
Q4 25
0.08×
0.42×
Q3 25
0.42×
Q2 25
0.38×
Q1 25
0.51×
Q4 24
0.10×
0.46×
Q3 24
Q2 24
0.51×

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
PNR
PNR
Operating Cash FlowLast quarter
$183.1M
Free Cash FlowOCF − Capex
$165.5M
$-85.7M
FCF MarginFCF / Revenue
18.1%
-8.3%
Capex IntensityCapex / Revenue
1.9%
1.8%
Cash ConversionOCF / Net Profit
1.46×
TTM Free Cash FlowTrailing 4 quarters
$546.0M
$716.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AOS
AOS
PNR
PNR
Q1 26
Q4 25
$183.1M
$50.8M
Q3 25
$255.4M
$196.3M
Q2 25
$139.6M
$606.6M
Q1 25
$38.7M
$-38.9M
Q4 24
$221.9M
$86.5M
Q3 24
$195.9M
$248.6M
Q2 24
$57.4M
$539.2M
Free Cash Flow
AOS
AOS
PNR
PNR
Q1 26
$-85.7M
Q4 25
$165.5M
$27.1M
Q3 25
$240.6M
$178.9M
Q2 25
$122.5M
$595.7M
Q1 25
$17.4M
$-55.7M
Q4 24
$191.3M
$63.8M
Q3 24
$163.4M
$233.2M
Q2 24
$34.5M
$522.2M
FCF Margin
AOS
AOS
PNR
PNR
Q1 26
-8.3%
Q4 25
18.1%
2.7%
Q3 25
25.5%
17.5%
Q2 25
12.1%
53.0%
Q1 25
1.8%
-5.5%
Q4 24
21.0%
6.6%
Q3 24
18.1%
23.5%
Q2 24
3.4%
47.5%
Capex Intensity
AOS
AOS
PNR
PNR
Q1 26
1.8%
Q4 25
1.9%
2.3%
Q3 25
1.6%
1.7%
Q2 25
1.7%
1.0%
Q1 25
2.2%
1.7%
Q4 24
3.4%
2.3%
Q3 24
3.6%
1.6%
Q2 24
2.2%
1.5%
Cash Conversion
AOS
AOS
PNR
PNR
Q1 26
Q4 25
1.46×
0.31×
Q3 25
1.93×
1.07×
Q2 25
0.92×
4.08×
Q1 25
0.28×
-0.25×
Q4 24
2.02×
0.52×
Q3 24
1.63×
1.78×
Q2 24
0.37×
2.90×

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%

PNR
PNR

Water Solutions$391.0M38%
Pool$387.1M37%
Flow$258.1M25%

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